����50V150A�_�P(gu��n)ֱ���Դ����׃��ԇ���{(di��o)�Դ
50V150A�_�P(gu��n)ֱ���Դ��һ��ݔ����ֱ�����{(di��o)������b�ã��ܞ���׃����ؓ�d�ṩ��(w��n)����ֱ��������Z��50V150Aֱ����(w��n)���Դ���Ç��H���M��ܛ�_�P(gu��n)���g(sh��)���M�dʹ�ÕrЧ�ʿ��_��92%����,����Ч�ʸ�����(w��n)���Ժá�ʹ�ò�����������c���@��a(ch��n)Ʒ���V������48V��׃�����ϻ�ԇ��Ҋ����׃����܇�d��׃����̫�����׃����������׃���ȵȡ�
���Z��50V150A�_�P(gu��n)ֱ���Դ�����������c��
1. ݔ��늉����ȫ�������{(di��o)�������Ñ��`��ʹ�ã���������һ�C����
2. �w�eС�������p��Ч�ʸߡ�ݔ�뷶����
3. ݔ��늉������������LED�@ʾ������ֱ�^��
4. �^�����^����Ƿ�����^��ȱ��o�����Ƶı��o�·����������C�Ŀɿ�����
5. ����ݔ�����ӿ���o�������_�C˲�g����^�_��
6. �ԄӾ������g(sh��)���ɶ��C��(li��n)�U��������Ч���F(xi��n)������ݔ����
50V150A���{(di��o)�Դϵ�Юa(ch��n)Ʒ��һ�N�����ֱ����(w��n)���Դ�����ڹ��I(y��)�Ԅӻ�������܊���O(sh��)���������O(sh��)����LED�������ϻ��O(sh��)����ͨӍ�O(sh��)�䡢����O(sh��)�����t(y��)���O(sh��)�䡢���Ԫ��������������ֱ���Դ����(y��ng)�Ĉ��������Z��ֱ����(w��n)���ԴҎ(gu��)���Rȫ������a(ch��n)ƷҎ(gu��)��gӭ�����ԃ��
(li��n)ϵ�ˣ�����
�Ԓ��/13342997737
�]�䣺13342997737@QQ.Com
PV5G-6-FG-S-3-N-A03 |
PV5G-6-FHG-D-3-N |
PV5G-6-FIG-D-3-N |
PV5G-6-FPG-D-3-N |
PV5G-8-FG-D-1-N |
PV5G-8-FG-D-3-N |
PV5G-8-FG-S-1-A03 |
PV5G-8-FG-S-3-N |
PV5G-8-FG-S-3-N-A03 |
PV5G-8-FHG-D-3-N |
PWS-B1992 |
QEV2-15 |
QEV2-20 |
QEV2-25 |
QEV2-8 |
R1000-6-L |
R1000-G-PLUG |
R4000-15 |
R6000-20 |
R8000-25-P12-FL360087 |
R8000-25-R1 |
R8100-20-BG41P-TC |
RCC2-00-32-35-R |
RCC2-00-40-25-L |
RCC2-00-40-35-L |
RCC2-00-50-40-R |
RCC2-FA-32-FL298536 |
RCC2-FA-50-FL283757 |
RCC2-FB-32-FL279443 |
RCC2-FB-40-FL296732 |
RCC2-FB-50-FL241728 |
RCC2-FK-00-50-40-R-FL |
RCC2-FK-00-50-70-L-FL |
RCC2-FK-00-50-70-R-FL |
RCC2-FK-H1-50-40-L-FC |
RP1000-8-02 |
RP1000-8-02-G49PB3 |
RP1000-8-04 |
RP1000-8-07 |
RP1000-8-07-G49PB3 |
RP2000-10-08 |
RRC-32-90 |
RRC-63-90-T0H-D |
RRC-8-90 |
RTD-3A |
RV3D20-90-45-SR |
RV3SA20-0-90-FR |
S1-CB-80 |
SAB-15AX020-N-FL365064 |
SAB1A-25A-0 |
�y������ | (-0.1~160)MPa,(0~50)kPa |
�^�d���� | ≤10Mpa 200% ; ��10Mpa 150% ; |
�y�����|(zh��) | �c316���P䓼��ݵĚ��w��Һ�w |
�C�Ͼ��� | ±0.5%FS |
���c�O(sh��)�� | ȫ���̷������O(sh��) �p�M�^�����̖�����_���]�� |
�L�ڷ�(w��n)���� | ���ͣ�±0.5%FS/�� |
ؓ�d���� | 220VAC 5A 380VAC 3A 24VDC 5A |
���늉� | 24VDC 220VAC 380VAC(���x) |
늚Ᵽ�o | ���O�Ա��o ��늴Ÿɔ_ |
�ɘ��ٶ� | 5��/�� |
�����ӿ� | M20*1.5�������ɶ��ƣ� |
�����ض� | -20�� 80�� |
�a���ض� | -10��60�� |
늚��B�� | �̶�8о��|ֱ�ӳ��� ��(bi��o)��(zh��n)30cm |
�������x | �Դ:�t �� 1·: COM�G NO�� NC�� 2·: COM�{ NO�S NC�� |
���F(xi��n)���� | �Ӿ����� |
����늽��c������ | �͈��c����ɫ �߈��c���Sɫ �����ˣ��G�{���B |
�͉��]�����߉����_ | ݔ������ɫ+�Gɫ �O(sh��)��AL�ͻز�Ad1 |
�͉����_���߉��]�� | ݔ�����Sɫ+�{ɫ �O(sh��)��AH�ͻز�Ad2 |
��·�߉����߉��]�ϣ� | ��1·����ɫ+�Gɫ���O(sh��)��AL�� ��2·���{ɫ+�Sɫ���O(sh��)��AH�� |
�e�����F(xi��n)����������10bar���_�^������½���4bar�]���^������� ʹ�õ�1·�����O(sh��)����AL�O(sh��)��4bar Ad1�O(sh��)��6bar;��ʹ�õ�2·�^��� �����O(sh��)����AH�O(sh��)��10bar��Ad2�O(sh��)��6bar�� |
������� | �퉺-G��ؓ��-L���^��-A����(f��)�ω�-C | |
�y������ | 0~ X KPa�� 0~ X MPa�� 0~ X ������λ | |
� Ŀ | �� �a | �� ��(sh��) |
�C�Ͼ��� | 2 | ±0.5%FS |
����@ʾ | M1 | 24VDC |
M2 | 220VAC | |
M3 | 380VAC | |
�����ӿ� | N1 | M20x1.5 ���ݼy |
N2 | G1/4���ݼy | |
N4 | �͑����� | |
���P�ߴ� | S1 | 100mm |
S2 | 80mm | |
S3 | 60mm | |
���b��ʽ | X | �����b |
Y | �S���b | |
���ӹ��� | P | �RƽĤ |
C | ����ӆ�� | |
ED | ���������� | |
KF | ���� | |
DN | ���m | |
�x���e����AE-C-G(0-1MPa)-1-M1-N1-S1-X |
��ͨ����ʽ�����_�P(gu��n) ����(sh��)��
����(sh��) | ֵ |
�ӿ� | 1/2”��3/4”��1” |
�{(di��o)��(ji��)���� | 6-1800L/min |
�͉� | 1.6MPa |
��ͨ����ʽ�����_�P(gu��n) �a(ch��n)Ʒ�f����
FB12ϵ�Г���ʽ�����_�P(gu��n)��������ˮ��sϵ�y(t��ng)����·ϵ�y(t��ng)�����������ƻ���o֮�����O(sh��)��ֵ����{(di��o)���Ñ��ɸ���(j��)��Ҫ�����{(di��o)����FB12ϵ�Г���ʽ�����_�P(gu��n)�Y(ji��)��(g��u)�\�Ӽ����ò��P䓲��������ֹ�\�Ӽ����P�g��ʹ�É�������ʽ�����_�P(gu��n)���^��A�F���ݼy�����ڴ�ڏ��ܵ������ٺܵ���(n��i)���w����ӯ����r�¿��Ժ����x�ð�Ƭʹ����
��Ҫ���g(sh��)���ܣ� �� �ڣ�1/2”��3/4”��1”�{(di��o)��(ji��)������6-1800L/min�� ����1.6MPa���|(zh��)�ضȣ�0�桫120��h(hu��n)���ضȣ�5�桫50���|�c������A.C.250V 3A�����ԣ��D(zhu��n)�Q�|�cһ�����г��_�ͳ��]��
JOLA�a(ch��n)Ʒ��̖���e��
���� �����_�P(gu��n) HMW/3/32 N396242/238
Capacitive leakage detectors��CPE_LS4, CPE-SPS2, CPE-SPS3, CPE-SPS4,CPE-LS4,CPE-LS4/A,CPE-LS5,CPE-KNI,CPE-KNI/A,OWE-SPS2,OWE-SPS3,OWE-SPS4,OWE-LS4,OWE-LS4/A,OWE-LS5,OWE-KNI,OWE-KNI/A,COW-SPS2,COW-SPS3,COW-SPS4,COW-LS4,COW-LS4/A,COW-LS5,COW-KNI,COW-KNI/A
SSP 3/K/PVC,SSP 1/K/PVC SSP 3/K/RN SSP 1/K/RN SSP/S3/K/SIL
SSP/S1/K/SIL SSP/S3/K/PUR SSP/S1/K/PUR SSP/S3/K/CM SSP/S1/K/CM
PH 3/K/PVC SPH 1/K/PVC SPH 3/K/RN SPH 1/K/RN SPH/S3/K/SIL SPH/S1/K/SIL SPH/S3/K/PUR SPH/S1/K/PUR SPH/S3/K/CM SPH/S1/K/CM SPH/S3/K/PTFE SPH/S1/K/PTFE SSX 3/K/PVC SSX 1/K/PVC SSX 3/K/RN
SSX 1/K/RN SSX/S3/K/CM SSX/S1/K/CM SSX/S3/K/PTFE SSX/S1/K/PTFE
FS 1/K/PVC FS 3/K/RN FS 1/K/RN FS/S3/K/SIL FS/S1/K/SIL FS/S3/K/PUR
FS/S1/K/PUR FS/S3/K/CM FS/S1/K/CM
SPH, SSX, SSR, SS, FS, TS Mercury-free floating switches ��nd immersion probes with potential-free micro-contact
SM SM float switches
SMR SMR magnetically operated float switches
MK MK float switches
TSR, RN, TSM TSR, RN ��nd TSM immersion probes
TSR/Ex TSR EEx immersion probes
NTR Immersion probes with free connecting cable
HMW, HA, NVM, ENVM Magnetic switches; level indicators ��nd level controllers with magnetic switches
TSK-MWU-SKG Continuous liquid level indicators of the TSK-MWU-SKG range
PKG 4-20 Liquid Level Transmitter for continuous level
measurement
SDS/PP SDS/PP pressure head switch
ATNP Level controllers on the air bubble injection principle
EH, LWZ, S, NR, ES Electrode controls
EL/Ex, NR/Ex Electrode controls for use in potentially explosive atmospheres
PST Pump control systems
KR, ESA Protection relays ��nd alarm relays
KR/Ex Intrinsically safe protection relays
RK3/K/external-mounting limit switches
MBK/magnetic switches in protection class“intrinsically safety”
EEx ia IIC T6, T4 or T3
PMC41-RE15H2H11T1PMD235-XH4A2EA1A[G0T] 0-14MPAPMC531-D25G2P3��������-[GT]PMP41-RE23P2J11G1SON65.XXAFPVDMXXVEGA SWING61.CAICVXMNXFPMC45-RE11F1A1AG1 PMC45-RE11F2B1AG1 PMC531-D50A2P6G1GT 0-1MPPMC534-11FA2P6F10T 0-100KPPMP131A2101A1GA9PMC41-RE15H2H11T1 PMD235-KH4A2EA1A[G0] PMD235-KB4F2EB1A G0L3T2PMC41-RE11M2J21T1 PMC41-RE11P2J21T1 PMC531-D50A2P6F1ZT P41-P200A38 0-0.6MPAPMC531-D50A2P6F1ZT ����0-60KPPMD235-KB4A2EB1C[G0]PMC41-RE11F2J11R1PMP41-RC13P2A11T1PMP41-RC13Z2A11T1PMC41-RE11S2R11M1 PMP48-RE13M2H2EKH1��0-400KPa��PMC731-R41C2H1T1TPMC535-13BA2P6G1GWIDEPLUS HP6500PMC534-11EA2P6G2FT��0����0.6MPa�^����PMC45-RE15H2H1AL1
PMC133-1R1F2F6[T]PMD235-XB4D2EB1C[T2] DB101-G1TE205ZF I=8 D=1 H=8PMC535-13BA2P6��������-��0-1MPA��PMD235-KB4H2EB1CPMD235-KB4H2EB1CPMP41-IE27H2J191 PMP41-IC11C2J11A1PMC41-RE21S2J1191PMC41-RE21S2J11A1FMP250-E5E1XCJAA2K
YTK9230�_�P(gu��n)��B(t��i)ָʾ�xYTK9230 �Y�����d ���_YTK9230 �_�P(gu��n)��B(t��i)ģ�M�@ʾ�x ���_���YTK9230 �_�P(gu��n)��B(t��i)ָʾ�xԓ�b�ð��b���㣬ʹ�É����L���������������ܣ��܉���늚��O(sh��)��İ�ȫ�ɿ��\����
��Ҫ��(y��ng)���I(l��ng)���У����I(y��)����Ԅӻ�ϵ�y(t��ng) ׃�վ�Ԅӻ�ϵ�y(t��ng)�l(f��)늏S�S���ϵ�y(t��ng) �ߵ͉��_�P(gu��n)�����ܴ�B늚�� ��Ч����ϵ�y(t��ng)
���a(ch��n)Ʒ�m����3-35KV���(n��i)�_�P(gu��n)����m�������ù���܇�����̶������h(hu��n)�W(w��ng)�W(w��ng)������������w�����ɏV�����ڸ��N��늹���������䡢���������ʽ׃�վ����
���_YTK9230 �_�P(gu��n)��B(t��i)ָʾ�x��һ�λ�·ģ�M�D����·��λ�����_�P(gu��n)��B(t��i)���ӵ��l��λ�������Ƀ��ܠ�B(t��i)���߉����ָʾ���߉�����]�i��������ȿ��Ƽ�RS485ͨӍ�ӿڣ��x�ã��ȶ����һ�w��ָʾ���ܿɷֿɺ���������尲�b��ʽ���Ñ��x�ÕrֻҪ�ṩһ�η����D���ɡ�
�a(ch��n)Ʒؓ؟(z��)�ˣ��ཛ(j��ng)����13874194348��(li��n)ϵ�Ԓ�� �D�Ă��棺�ھ�QQ��1564610977 2251986823��ַ������ʡ���������������У�����ս�(j��ng)���_�l(f��)�^(q��)�������깤�̿�����
������̖���_��Ӿ��ɞ����ṩһ���ķ���(w��)��һ�����|(zh��)������ԃ��ֱ�Ӂ��400-669-1718.BW-8500,XTKB-971S,JY-KZ-900A,JY-KZ-900BYTK9210,YTK9220,YTK9230YTK9310,YTK9320,YTK9330
���_��Ӱ���Ͱ��\��ͨ���ģ�sandayibiao.1688.com ������I(y��)�پW(w��ng):www.zzsanda.com.����ʡ�����̘�(bi��o)��I(y��)——�gӭ���ھ���ُ����a(ch��n)Ʒ��
���_��ӌ��I(y��)YTK9230 �_�P(gu��n)��B(t��i)ָʾ�x���a(ch��n)�S�����ṩ������ĺ����_�P(gu��n)��B(t��i)ָʾ�x�a(ch��n)Ʒ.���I(y��)�O(sh��)Ӌ,������N������ȫ���_�P(gu��n)��B(t��i)ָʾ�x��̖, YTK9230�_�P(gu��n)��B(t��i)ָʾ�x�����x�����˽������Ϣ�M�����_��ӹپW(w��ng) http://www.sandadz.com
���dZXDU68 S601���l�_�P(gu��n)�Դ�C��
ZXDU68 H001ϵ�y(t��ng)����һ�w���C��,�Ƀ�(n��i)��һ�M��늳�,���������,ֱ�����,����,�O(ji��n)�غ���늳���һ�w��ԓϵ�y(t��ng)�ɱڒ찲�b�ڪMխ�İ��b���c,��ؓ�d�ṩ��(w��n)���ɿ���-48Vֱ�����,����(ji��)ʡ���b���g��
��������(y��ng)ZXDU68 H001(90A)���d�ڒ�ͨ���Դ�a(ch��n)Ʒ����
����ZXDU68 H001(90A) �������dͨӍ�O(sh��)Ӌ�ıڒ�ʽ���l�_�P(gu��n)�Դϵ�y(t��ng),ϵ�y(t��ng)��(bi��o)��(zh��n)����60A,�M�����_90A,��3��ZXD1000(30A)�������M����
����ZXDU68 H001ϵ�y(t��ng)����һ�w���C��,�Ƀ�(n��i)��һ�M��늳�,���������,ֱ�����,����,�O(ji��n)�غ���늳���һ�w��ԓϵ�y(t��ng)�ɱڒ찲�b�ڪMխ�İ��b���c,��ؓ�d�ṩ��(w��n)���ɿ���-48Vֱ�����,����(ji��)ʡ���b���g��
������(y��ng)ZXDU68 H001(90A)���d�ڒ�ͨ���Դ
������(y��ng)���I(l��ng)��
�S���\�I�̻�վ��(sh��)����������W(w��ng)�j(lu��)�ܺ�Ѹ�����L��վ�c�@ȡҲ�S���h(hu��n)��������������Ķ��������y���������U�ɱ��S֮ˮ�q�����������ɱ����՝u�ߝq��ͨ���O(sh��)��������˙C�Ѻ����Խ����̰��b���ճ��S�o�M�á���M���Ñ�ȫ�潵��TCO��Ҫ�������dͨӍ�_�l(f��)��ZXDU68 S301ϵ�и�Ч�Դ��
�����a(ch��n)Ʒ���ԡ���
����
����
�������w�
ZTE EPC packet core network products can use virtualization (NFV / Network Functions Virtualization) technology, to achieve EPC system virtualization, but also support the traditional telecom network element form. Virtualized EPC products can run in a common cloud environment, free from dedicated hardware platforms, accelerate new business on-line speeds, build open ecosystems, improve business innovation, ��nd reduce equipment procurement ��nd O&M costs. ZTE EPC packet core network products include:-ZXUN uMAC��Supporting SGSN ��nd MME functions-ZXUN xGW��Supporting SGW��PGW��GGSN ��nd ePDG functions
һ������ͨ���Դ��ͨ��ϵ�y(t��ng)�о����ஔ(d��ng)��Ҫ�ĵ�λ�����á�ͨ���Դ�Ŀɿ���ֱ��Ӱ���ͨ��ϵ�y(t��ng)�Ŀɿ�������ͨ���Դ�M�����_����Ч�Ĝyԇ���DZ��Cͨ���Դ�_�l(f��)�|(zh��)�������a(ch��n)�|(zh��)������؛�|(zh��)������Ч������ͨ���Դ�Ĝyԇ�������yԇ�ֶΣ��DZ��C�yԇ���g(sh��)�����M�Լ���Ч�Ե��țQ�l�����DZ��C�߿ɿ���ͨ���Դ������(j��)�����dZXDU68 S601���l�_�P(gu��n)�Դ�C�� ���dͨӍ�Դ�a(ch��n)Ʒ�\�����M�Ĝyԇ�������yԇ�O(sh��)�䲢���Ծ��ж����_�l(f��)�yԇ��(j��ng)���Դ���I(y��)�yԇ���̎������_�l(f��)�����S��ÿһ�_�Դ�a(ch��n)Ʒ������һ��ͨ���Դϵ�У�����ģ�K�Դϵ�м�������l�_�P(gu��n)�Դϵ�е�ÿһ���������Դģ�K���Դϵ�y(t��ng)�����_�l(f��)�������������a(ch��n)��ÿһ���h(hu��n)��(ji��)�����M���ˇ���Ĝyԇ���Ķ�ʹ���S��ÿһ�_�Դ�O(sh��)�䶼�����ஔ(d��ng)�ߵĿɿ������������d�Դ���M�Ĝyԇ�ֶ�1���O(sh��)Ӌ�A�εĜyԇ���dͨӍ��ÿһ�N�Դ�a(ch��n)Ʒ�������һ�_ʼ�����ɽ�(j��ng)��S�����Դ���I(y��)�yԇ���̎���ԓ�Դ�������P(gu��n)��(bi��o)��(zh��n)Ҫ�����M�и�ۙ�yԇ���yԇ���̎���ϵ�y(t��ng)�O(sh��)Ӌ�����е�ÿһ��ָ��(bi��o)����(sh��)�ĺ������M�з��������c�ИI(y��)��(bi��o)��(zh��n)�M�Ќ�������Ԕ���·�O(sh��)Ӌ�r�����_�l(f��)�ˆT���õ�ÿһ��Ԫ�������|(zh��)���������Լ���������؛���M�Ї���Č�������ί�мӹ��Ĵ��Բ��ϵĽ^���ȼ����͟�ȼ������a(ch��n)��ˇ���M�Ї�����J�C���z���������Y(ji��)��(g��u)���ď����������Լ����C�Ŀɜyԇ�ԡ��ɾS��������ȫ������(w��n)�����M�Йz���2�� �Դ����(sh��)�ęz�yͨ���Դ����(sh��)�ęz�y��������ĜyԇҪ������ߜyԇ�Ŀ��؏�(f��)�Լ��ӿ��_�l(f��)�M�ȣ����dͨӍ���������P(gu��n)���Դ����(sh��)�C�z�y���{(di��o)ԇ�O(sh��)����ʹ���S��ÿһ�_�Դ�O(sh��)������܅���(sh��)�����Ї����һ���Լ��yԇ�Ŀ��؏�(f��)�������Ѕ���(sh��)�����ϻ��^���d�Դ�a(ch��n)Ʒ��(n��i)�����g(sh��)�ļ���Ҫ�����Ϣ�a(ch��n)�I(y��)�����P(gu��n)��(bi��o)��(zh��n)��Ҫ��3�� 늾W(w��ng)�C��ģ�M���˙z�y���dϵ���Դ�a(ch��n)Ʒ���Ї��^(q��)�ض�늾W(w��ng)�Č������m��(y��ng)���������d�Դ�yԇ���̎��\������CI��˾��늾W(w��ng)�C���l(f��)����/�����x��HGA Harmonic Generator/Anynasis����AC POWER SOURCE��ģ�M�ć���(n��i)��ͬ�^(q��)�ɼ��ĵ��͵�늾W(w��ng)���μ�����(sh��)����ÿһ�N�Դ�әC�M���L�ڵ�늾W(w��ng)�m��(y��ng)�����yԇ��ʹ֮���m���Ї��V����l(xi��ng)�Ñ�ʹ�õČ��V��늉�ݔ�뷶�����\��HGA��AC POWER SOURCE�����Ƴ����_�P(gu��n)�C�r�̼�늾W(w��ng)���ӕr���a(ch��n)���ĸ��N���ܕr�̵ď���ӿ��弰ͻȻ���������M���L�r�g���؏�(f��)ԇ�P(gu��n)�I���Μyԇ��ʹ���d�Դ����Դ������(sh��)У����APFC���·�Ŀɿ��Լ�����׃�Q���·�Ŀɿ��Եõ��˘O���������Ķ����C�����d�Դϵ�Юa(ch��n)Ʒ�ھW(w��ng)�Ϸ�(w��n)���ɿ����\�С�4�� �L�r��·���̕r�؏�(f��)��·�yԇ���˙z�y���d�Դ��ؓ�d�l(f��)�������·��r�µĿɿ�����ÿһ�_���_�l(f��)�����d�Դģ�K��ϵ�y(t��ng)���M������ݔ��늉��������������͕r��ݔ�����L�_8С�r�Ķ�·�yԇ��ؓ�d�ɿ��d��ͻȻ��·����·�Δ�(sh��)�_�ϰٴε��؏�(f��)��·�ɿ��Ԝyԇ����ͬ�r�O(ji��n)�y�Դ��ݔ��늉��ؿs����·�����С���z�y����������˲�B(t��i)늉������(y��ng)����ʹ֮�M��늑�(y��ng)�����~��Ҫ��������Դ��·����·�����֏�(f��)����������������5�� �ߵ͜��L�r�g���C�����C�ğ�ֲ��yԇ�ߜ����댧(d��o)�w������Ҳͬ����ͨ���Դ��������⑪(y��ng)�������d�Դ���_�P(gu��n)�������әC�������S��ݔ��늉���ؓ�d���׃��������(n��i)��(j��ng)�^�ضȞ飭10�桫50��ľC�Ͻ�׃��(y��ng)���yԇ���L�r�g�ߜؿ��C��MTBF�yԇ�����������S��ÿһ�_�Դϵ�y(t��ng)�������~��ݔ��늉������ؓ�d������M�Эh(hu��n)���ضȞ�45�����r�g��24С�r�ĸߜؑ�(y��ng)�����ˡ�ͬ�r���քe�ڳ������ߜحh(hu��n)���²��������ݔ��늉������ݔ��늉������ݔ��늉������ؓ�d����������C�e�ǹ��������Ĝضȷֲ��M���ˇ���Ĝyԇ���ó������C�ğ�ֲ��D�Σ����C�����C�ضȵĺ����ֲ���6�� ���o�yԇ���g(sh��)���˱��C���d�Դ�����m��(y��ng)�Ї�ƫ�h�������dZXDU68 S601���l�_�P(gu��n)�Դ�C�� �^(q��)�e����Сˮ늹�늵^(q��)��늾W(w��ng)��ӿ������늵ě_���������Դ�yԇ���̎������d�Դ�ھ��Ќ��I(y��)ˮƽ�ķ��o�O(sh��)Ӌ���̎������O(sh��)Ӌ�ķ��ד���ӿ�·��SCHAFFNER NSG2050��ӿ�l(f��)�����M���˳־÷���(f��)�Ĝyԇ��ʹ���d�Դ�ĵ�������D�������o�·�ڸ��Nݔ��늉���ؓ�d�l���������ྀ֮�g���ྀ�c�о�֮�g���ྀ���о��c���o�أ�PE��֮�g�����ɳ��ܷ�ֵ��6KV���_·늉����Ξ�1.2/50μs����·������Ξ�8/20μs�ě_��늉��C�ϲ����M���Դϵ�y(t��ng)���ྀ�c�ྀ���ྀ�c�о�֮�g���ྀ���о��c���o�أ�PE��֮�g���ڲ�ͬ��ݔ��늉���ؓ�d��������dz���r�����܉���ܲ��Ξ�8/20μs 15KA������_���������m��(y��ng)����(n��i)��ͬ�^(q��)늾W(w��ng)��TT�Ƽ�TN-C�Ƶ����������d�Դϵ�о��M���˙C����PE���c�о���N�����g����250V/50Hz����늉�1С�r�Ĝyԇ���Ķ�ʹ���d�Դ��TT��TN-C��늾W(w��ng)���ܿɿ����\����
7�� 늴ż����Ԝyԇ���g(sh��)�������b���b�����b�y���b�š��b�{(di��o)�����ܼ���Ч�ʺ͌��Vݔ��늉����������d�Դϵ�y(t��ng)�����˱��C��ʮһ���o��Ϣ���g(sh��)�оGɫ�Դ�đ�(y��ng)�óɞ�F(xi��n)������CISPR 22��CISPR 24��(bi��o)��(zh��n)���M���ˇ����늴ż����Ԝyԇ���o늷�늣�ESD���Ĝyԇ�O(sh��)���SCHAFFNER NSG435�o늷�늰l(f��)����������1.2/50ns�����|���ݗֵ8KV���g�ӷ��ֵ15KV��늉�����Ĝyԇ�O(sh��)���AC POWER SOURCE���~��ؓ�d�l�������늉�������0V��ͻȻ���������늉���ݗ��늴ň����ȵĜyԇ�l�ʷ�����80MHz��1000MHz��ݗ��늴ň���ݗֵ��3V/m��늿���˲׃�}�_Ⱥ��EFT���Ĝyԇ�O(sh��)���SCHAFFNERNSG2025�����Ξ�5/50ns���}�_�؏�(f��)�l��2.5KHz��ݗֵ��4KV���}�_�؏�(f��)�l��5KHz��ݗֵ��2KV���yԇ�rȺ�}�_��̖�ij��m(x��)�r�g��15ms�����ڞ�300ms�����������_�Ԝyԇ�����Դ��������������ͨ�Ų��Д���Һ���@ʾ�o�y�a����ͬ�r�M�����Դ������(d��o)�l(f��)��ԇ����l�ʷ�����150KHz~30MHz��늴ň�ݗ��l(f��)��ԇ�l�ʷ�����30~1000MHz���yԇ�O(sh��)���HPE701A���ɝM��A����(bi��o)��(zh��n)��Ҫ����YD/T-983-1998��ͨ���Դϵ�y(t��ng)늴ż�������ֵҪ�yԇ��������ݔ���Դ���M����늉�������W�q�yԇ���yԇ�O(sh��)���PA6630�Դ�����x�������o����(w��n)���Դ�������ܵ�늴ż�����ָ��(bi��o)��ʹ���dͨ���Դϵ�y(t��ng)���C��ͨ��ϵ�y(t��ng)�ĸ߿ɿ�����ԓ�Դϵ�y(t��ng)�e�m����GSM��վ�Ȍ�늴ŭh(hu��n)���Ї���Ҫ��Ĉ�����8�� �·�O(sh��)Ӌ����Ҏ(gu��)��һ���Ԝyԇ���˱��Cÿһ�_�Դ�����и߶ȵİ�ȫ�ɿ��Լ�һ���ԣ���ÿһ�_�Դʹ���п��ܮa(ch��n)���Č������ˆT���S�o�ˆT���C���O(sh��)��IJ���ȫ���ؾ�����UL1950��GB��Ҫ���M���˰�ȫ�yԇ���猦ݔ��늽��������X�������Y�������PCB���M����ȼ�Ԝyԇ����׃�����ȴ���Ԫ���������������cɢ�����g����(d��o)���cɢ�����g���߉�PCB�߾�֮�g�����c�͉�PCB�߾��ͽ��ٙC���g�M��500~2500V/50Hz����늉��yԇ����늾��x�yԇ����������ݔ�뾀�c���ٙC�����o���g©����M�Ї���Ĝyԇ�����������C����������_�� 90%�r������ݔ���cֱ��ݔ��֮�g������ݔ���c��ȫ���g�������Ľ^�����ͽ^����������С�����¼������ܳ��F(xi��n)�ĘO���¼���ģ�M���yԇ���ش��|(zh��)���¼����ܳ��F(xi��n)�Ĺ���ģʽ�����������˿��ܳ��F(xi��n)���¹��[����9�� ���бO(ji��n)�yԇ���dZXDU68 S601���l�_�P(gu��n)�Դ�C�� ���d�Դ���бO(ji��n)�ز��ֵĜyԇ����Ҫ��ᘌ�Ӳ����ܛ���ɲ����M�еġ�ᘌ��O(ji��n)�ز��ֵ����c����Ӳ���·�M����FMEA���������~���ߜش惦��70�棩�͵͜ش惦��-40�棩��12С�r���ߜع�����40�棩�͵͜ع�����-10�棩��24С�r���ض�׃�����ʲ�����5��/min�ĸߵ͜�ѭ�h(hu��n)ԇ24С�r���ȭh(hu��n)���Ŀ�Ĝyԇ�����˱��Cϵ�y(t��ng)�ڸ��N늴ŭh(hu��n)���¶���������������YD/T 983-1998��ͨ���Դ�O(sh��)��늴ż�������ֵ�͜yԇ��������Ҫ���M�����T���o늷�늣�ESD����늿���˲׃�}�_Ⱥ��EFT����늴ň�ݗ�俹�_�Լ���ݗ��늴ň�����Ă���(d��o)�ɔ_���_�Ե�8�� EMC�yԇ���Á���߱O(ji��n)���·ܛӲ���Ŀɿ������ڜyԇ�У��Î�����1GHz����ͨ����(sh��)�ִ惦ʾ����TDS784D��DPO���������r犵���Ҫ�����IJ����M���L�r�g���^�죬���^�쵽ϵ�y(t��ng)���F(xi��n)������r�̵��`�a�����Cϵ�y(t��ng)�����Ŀɿ��ԡ�ᘌ�ܛ���yԇ�]�нy(t��ng)һ��(bi��o)��(zh��n)�����c�����_�l(f��)�ɹ���ܛ���M�д��a�߲�����ģ�K���ܼ������Է����yԇ��ܛ�����e���ܼ����a�\�и��w�ʜyԇ��ܛ������(sh��)߅�缰�O�ޜyԇ���\�����M��LABVIEWܛ����Visual Cܛ���M�ж��Μyԇܛ�������_�l(f��)�����������Ƶ�AI����AO������̖���x�D(zhu��n)�Q�弰�O(ji��n)��ϵ�y(t��ng)�Ľӿڣ���ģ�M���d�Դ�a(ch��n)Ʒ�Č��H�\�Эh(hu��n)�����Ȍ��H�\�Эh(hu��n)���������ܛ���h(hu��n)�����O�ޅ���(sh��)����������(sh��)��߅�����}����������ǰ���_ܛ���yԇ�����Ⱥ͏�������Ч�pС�yԇ���������H�O(sh��)��ͭh(hu��n)������ه��������˜yԇЧ�ʼ�ϵ�y(t��ng)ܛ���yԇ��ȫ����������ʹ���d�Դǰ���_�O(ji��n)��ܛ���Ĝyԇ�������Ӿ������M�ĿƌW(xu��)�������C�˱O(ji��n)��ܛӲ��ϵ�y(t��ng)�\�еĿɿ�����
First, an overview
Communication power has a very important position ��nd function in the communication system. The reliability of communication power is directly affected by the reliability of the communication power. The correct ��nd effective test of the communication power supply is an effective method to ensure the quality of the development of the communication power, the quality of production ��nd the quality of supply. The testing method ��nd testing means of communication power supply are prerequisites for guaranteeing the advancement ��nd effectiveness of testing technology, ��nd the basis for guaranteeing the communication power of high reliability.
ZTE power products using advanced testing methods ��nd testing equipment ��nd professional with power supply has many years of development experience in testing ��nd test engineer, on the development of each power supply products, including a series of communication power supply, the two power module ��nd power series of high frequency switching power supply series of each rectifier power supply module ��nd power supply the system, from every aspect of the early development to mass production, have carried out strict testing, so that each power supply equipment factory has quite high reliability.
Two, the advanced test means of ZTE power supply
1. testing in the design phase
Every power source of ZTE has been tested by the experienced power professional test engineer at the beginning of the project according to the relevant standard requirements. The test engineer analyses the rationality of each index parameter in the system design scheme ��nd compares it with the industry standard. In detailed circuit design, the quality, maturity ��nd availability of each component used by the developer are strictly audited. The insulation class, heat resistance grade ��nd production process of the magnetic materials processed by the Commission shall be strictly authenticated, inspected ��nd audited. The strength ��nd rationality of the structural parts, ��nd the testability, maintainability, safety ��nd stability of the whole machine shall be tested.
Detection of 2. power parameters
The detection of the parameters of the communication power supply is the most basic test requirement. In order to improve the testing repeatability ��nd speed up the development progress, ZTE made power parameters detection ��nd microcomputer debugging equipment, repeatable performance parameters of each power supply equipment factory has strict consistency ��nd test, all the parameters are ZTE power products meet or exceed the requirements of internal the Ministry of information industry ��nd the requirements of the relevant standards.
3. power grid harmonic simulation���dZXDU68 S601���l�_�P(gu��n)�Դ�C��
In order to detect a wide range of power supply products ZTE series Chinese area specific grid adaptability, ZTE power test engineers use harmonic generator / power of American CI company (HGA Harmonic Generator/Anynasis) analyzer ��nd AC POWER SOURCE, different from the domestic power grid simulation waveform ��nd parameters of the typical area of collection, for each power supply for a long time the grid adaptation test, make it more suitable for a wide range of input voltage China urban ��nd rural users. The use of HGA AC ��nd POWER SOURCE, developed the strong surge peak produced in various switch time ��nd power fluctuations when possible moment ��nd suddenly drop, ��nd repeated tests ��nd key waveforms tested for a long time, the active power factor correction (APFC) of ZTE power supply reliability of main circuit reliability ��nd power conversion circuit has been greatly improved, thus ensuring the ZTE power supply products online in stable ��nd reliable operation.
4. long short circuit ��nd short-time short circuit test
In order to detect the ZTE power load is in the reliability of accidental short circuit case, each new ZTE power module ��nd system are output when the input voltage is highest, the lowest in normal ��nd short circuit test end up to 8 hours ��nd the load short-circuit reliability test by repeated hundreds of times, the number of empty load to sudden short-circuit short-circuit at the same time, ��nd monitoring the output voltage of the power supply to the size shrinkage ��nd short-circuit current, transient measurement of voltage ��nd current stress of the power devices, so as to meet the electrical stress derating requirements, i���dZXDU68 S601���l�_�P(gu��n)�Դ�C�� mprove the ability to resume normal work after the termination of the short circuit short circuit of power supply.
Heat distribution test of 5. high ��nd low temperature ��nd long time roast machine ��nd the whole machine
High temperature is a semiconductor device, ��nd it is also the most harsh external stress of the communication power. Comprehensive alternating power supply prototype switch rectifier ZTE in input voltage ��nd load current allowed range after a temperature of - 10 DEG C to 50 DEG C stress test ��nd long time high temperature baking machine MTBF test, ��nd for each power supply system will be manufactured, both in the rated input voltage ��nd maximum load temperature under the current environmental temperature is 45, 24 hours of stress assessment. At the same time, respectively, at room temperature ��nd high temperature environment ��nd the maximum input voltage, the minimum input voltage ��nd maximum output voltage, maximum load current, especially on the temperature distribution of power device is tested, the thermal distribution of graphics, to ensure a reasonable distribution of the whole machine temperature.
6. protection test technology
In order to guarantee the power supply China ZTE has to adapt to the remote ��nd backward areas especially by impact surge of small hydropower supply area ��nd strong lightning, lightning protection of power supply test engineer ZTE power design meticulously in protective design engineers with professional level of surgeprotection circuit using SCHAFFNER NSG2050 surge generator was long repeated tests, the third level of ZTE power supply (D) protection circuit in a variety of input voltage ��nd load conditions, in between, between liquidus phase ��nd phase, ��nd midline midline ��nd protection (PE), can bear the amplitude of 6KV, the open circuit voltage waveform was 1.2/50 s, the short-circuit current waveform was 8/20 s shock
��Ĭ�����A�顢���d������Դ��ͨ��ϵ�y(t��ng)�Դ��(sh��)�������õĺ��㷽�� ��Ĭ�����A�������d������Դ��ͨ��ϵ�y(t��ng)�Դ�����ÿɸ���(j��)����Ĺ����dZXDU68 S601���l�_�P(gu��n)�Դ�C�� ʽ��Ӌ���x�� ��1��Ӌ�������_�P(gu��n)�Դ��ݔ����� I OUT ����һ�� IOUT =Ifz +0.2C10 (A),ʽ�� Ifz ���������ؓ�d�����A���� C10����늳��~��������Ah����0.2C10�鿼�]늳ؾ���r�r�������ֵ�� �������� IOUT = ��Ifz +0.1C10 ��/��0.7~0.8����ʽ��0.7~0.8�ǿ��]ϵ�y(t��ng)��ȫ�\�е�ԣ��ϵ��(sh��)��0.1C10 �鿼�]늳ؾ���r�r�������ֵ�� ��2���x��������Ҏ(gu��)����Ӌ����������ģ�K��(sh��)�� N ��N ≥I OUT /I Z����ʽ��I Z������ģ�K���~��ݔ�������A����Nȡ����(sh��)�� ��3���� N+1 ԭ�t��������ģ�K��(sh��)������(d��ng)��õ�N≤10�r����������ģ�K��(sh��)��N+1 ����(d��ng)��õ�N>10�r��ÿ10��ģ�K����1���� �Է���������������ͬ�Ӵ��빫ʽ���ɣ��� ��֪ij��վֱ��ؓ�d���Ifz��110A�����õ�ÿ���_�P(gu��n)�Դ����ģ�Kݔ���~�������I Z��50A��늳�������300A,Ӌ���@����վ���_�P(gu��n)�Դ�����ö���������ģ�K���������_�����ق�����ģ�K�� IOUT =Ifz +0.2C10 =110+0.2* 300 =170A N =I OUT /I Z =170/50 =3.4 N��С��(sh��)�r,��(y��ng)ȡ����1,��N=4 ��(y��ng)�_����ģ�K����(sh��):5��(���ֻ�_��4��,һ��ģ�K��,ǡ��ͣ늺��ف�늕r,늳س䲻�M,��̝�p) �����ģ�K��(sh��): 1�� ��(y��ng)����ģ�K��(sh��):N+1=54+1=6�� (N>10�r��ÿ10��ģ�K����1��) �e���{(di��o)����Ҫ�����еĂ���ģ�K���_�����������M������s��ģ�K������ ���Ͼ��ǰ�Ĭ�����A�������d������Դ��ͨ��ϵ�y(t��ng)����ģ�K��(sh��)���ĺ��㷽���� |
Accounting methods for the distribution of power supply in communication systems such as Emerson, HUAWEI, ZTE ��nd power sources
The configuration of the power supply for communication systems such as Emerson, HUAWEI, ZTE ��nd power sources can be calculated according to the following formula:
(1) the total output current I OUT of the switching power supply is calculated.
Method one: IOUT =Ifz +0.2C10 (A), Ifz is the required maximum load current (A); C10 is the rated capacity of the battery (Ah). 0.2C10 is always the biggest limiting value of battery charge account.
Method two: IOUT = (Ifz +0.1C10) / (0.7~0.8), in which the 0.7~0.8 is the margin factor that takes into account the security of the system. 0.1C10
As always the maximum current limit of battery charge account.
(2) choose the specifications required for the calculation of rectifier, rectifier module number N, N = I OUT /I Z, I Z, in the rated output current of rectifier module (A); N integer.
(3) according to the number of N+1 configuration principle of rectifier module, when the N is less than or equal to 10, the number for the N+1 configuration of the rectifier module; when the N>10, each of the 10 modules with 1.
Take the method as an example (method two can be replaced by the same formula):
It is known that the DC load current of a base station is Ifz 110A, ��nd the output current of each switching power rectifier module is 50A, ��nd the battery capacity is 300A. The number of rectifier modules of the base station��s switching power supply needs to be configured with more than one rectifier module. The output current of the rectifier module is Ifz. The output current of the rectifier module is I. How many rectifying modules do you normally need to open?
IOUT =Ifz +0.2C10
=110+0.2* 300
=170A
N =I OUT /I Z
=170/50
=3.4
N should be added to 1 decimal, rounding, N=4
The number of modules should be opened: 5 (if only 4, one module is bad, when the power is out of power, the battery is dissatisfied ��nd will lose).
Number of cold standby modules: 1
The number of modules should be configured: N+1=54+1=6 (N>10, adding 1 for every 10 modules)
Special emphasis: do not open all the spare modules, so as to avoid wasting electricity ��nd shorten the module life.
���dZXDU68 S601���l�_�P(gu��n)�Դ�C��
The above is the calculation method of the number of the communication system rectifying modules of Emerson, HUAWEI, ZTE, power source ��nd other communication systems.
Recently, ZTE in the United States at the thirty-eighth International Telecommunications Energy Conference (International INTELEC Telecommunications Energy Conference) released the first of a new generation of hybrid energy supply the latest research ��nd development of PowerMaster ONE solutions, help telecom operators to further improve network efficiency, reduce the total cost of ownership (TCO) investment.
ZTE, a new generation of PowerMaster ONE scheme, the integrated design, highly integrated structure, compared with the existing power supply scheme, save the area of more than 50%, reducing the installation time of 80%; to support a variety of energy input ��nd unified management, which can smooth the superposition of solar ��nd wind energy; the mechanical combination + electronic anti-theft design, effective protection of energy assets safety; support multiple transmission access site energy management system iEnergy, fine management, preventive maintenance ��nd network energy efficient operation.
ZTE launches PowerMaster ONE solutions
During the exhibition, ZTE energy solutions expert Huang Yuanhua published "Green & Magic Energy Box, ZTE New Generation Hybrid Solution-PowerMaster ONE keynote speech, the development trend of power supply based on hybrid communication energy, focusing on PowerMaster ONE scheme in solving the problem of the lack of electricity supply site area, through innovative design concepts ��nd technologies to help clients achieve the maximum value of interest, especially in the background of telecom operators gradually sell assets to PASSIVE infrastructure operators, PowerMaster ONE scheme can meet the site from a single user power supply to the power supply smooth expansion ��nd upgrading, effectively avoid the unique advantage of customers�� investment losses.
ZTE energy solutions expert Li Weibo published on the theme of "An Innovative Energy Management the System for Telecom Energy Network", showing the energy management scheme for iEnergy networks based on cloud technology, presents ZTE energy products in the field of network energy management innovation achievements. The traditional energy management focuses on monitoring the running state of equipment, energy management scheme of iEnergy network is focused on core business through the network energy, energy management ��nd data analysis, to help customers ��aster the network running state of health, to achieve energy efficiency to the energy efficiency of the whole network site optimization promotion, through comprehensive preventive maintenance to improve network reliability ��nd efficiency of operation ��nd maintenance.
As a leader in technology ��nd market of communication energy industry, ZTE is continuously innovating in the energy field, ��nd is committed to continuously introducing products ��nd programs that satisfy customers. There are many market application cases in the world.
Ŀǰ��ͨ���Դ�����ø��l�_�P(gu��n)�Դ��������Դ�����y��ʽ�ܷ��U����늳��������ʽ�U����늳�����Ӌ��C�O(ji��n)��ϵ�y(t��ng)����?zh��n)��y(t��ng)���˹����Ƽ��g(sh��)�����ͨ���Դ�ĸ���?li��n)Q������������������S�����g(sh��)���M�����e�ǹ��������ĸ���?li��n)Q��������늴Ų��ϵIJ���ʹ��������׃�Q���g(sh��)�IJ�����M�����Ʒ����IJ����M�����Լ����P(gu��n)�W(xu��)�Ƶļ��g(sh��)�����ں���ͨ���Դ��ϵ�y(t��ng)�Ŀɿ��ԡ���(w��n)������늴ż����ԣ������W(w��ng)��(c��)����C���������������ʡ����͓p�������ϵ�y(t��ng)�ĄӑB(t��i)���ܵȵȷ��涼ȡ���L����M��������������Ӌ��C�O(ji��n)��ϵ�y(t��ng)��ͨ���Դ�еďV����(y��ng)�ã�Ҳʹ���Դ�����ܻ��̶Ȳ��������ϵ�y(t��ng)�S�o������������õ��ӏ��������ƵĽӵ�ϵ�y(t��ng)�ͷ��״�ʩ�Mһ��������Դ��ƽ���o���ϕr�gMTBF��Ŀǰ��ͨ���Դ������l�����߹����ܶ����߹�����(sh��)����Ч�����߿ɿ����������ܻ�����l(f��)չ�����҇�ͨ���Դ���^һ�l���M���g(sh��)�����Y���a(ch��n)�����������_�l(f��)�ĵ�·������ͨ���Դ�Ј�ǰ�������a(ch��n)Ʒ�ĸ���ֵ�ߣ�����������(n��i)���ٵĿ���Ժ�����S��Ͷ������������������������_�l(f��)�������õ�ͨ���Դ��Ŀǰ����������֪�R�a(ch��n)��(qu��n)�ć���(n��i)ͨ���Դ�S����Ҫ�У���h�����Hͨ���Դ���F����؟(z��)�ι�˾�����ڵ��A����˾�����d��˾������������Դ��˾���麣����Դ��˾�������S�d��˾�ȵ�������(n��i)��Ҫ�ĺ��Y�S���У��Ϻ������Ԫ��˾���Ϻ������T��ͨ���Դ��˾���Ϻ������_—˹��̩�˹�˾���V�ݵ��齭����O(sh��)����������˾�ȵ����Ј���Ҋ������Ҫ����ͨ���Դ�ďS���У������������أ�Liebert����˾�����_��Reltech����˾��Ų�������_��Eltek�����F��˾�������m��ʩ���ؿˣ�Switchtech����˾�ȵȡ��M��9O��������S�����g(sh��)�Ą�(chu��ng)���c�M����Ŀǰ����ͨ���Դ�S�ҵĮa(ch��n)Ʒһ�㶼�������¼��g(sh��)���c����1�������������ģʽ����늉����Ƶ�ģʽ����2���������ƿ��Ƶ�ģʽܛ�_�P(gu��n)���g(sh��)����ȫ����늉��_�P(gu��n)����3�����ù�����(sh��)���dZXDU68 S601���l�_�P(gu��n)�Դ�C�� У�����g(sh��)����4������ģ�K�ԄӾ������ܡ���5���������Ƶ��b�����b�y���b�š��b�{(di��o)���b��������6���������Ƶ���늳��O(ji��n)�y������������ܵȹ������g(sh��)����7�������ѺõıO(ji��n)��ܛ������8�����õ�늴ż����Ժͷ��״�ʩ����9�����ı��o�澯���ܡ���
�����w���܁������҇�ͨ���Դˮƽ�c����ͬa(ch��n)Ʒ��ȣ�����һ���IJ������Ҫ����ڹ����Ŀɿ��ԡ���(w��n)���Ժͼ��g(sh��)���ܵȷ�����������M�����������_�l(f��)��������֪�R�a(ch��n)��(qu��n)�����g(sh��)�����ߵ���һ��ͨ���Դ�������d���幤�I(y��)����߮a(ch��n)Ʒ���|(zh��)��������������_�l(f��)�����о�ˮƽ������Ҫ�����x��Ҳ�������@���Ľ�(j��ng)��Ч������õ����Ч����������ͨ���Դ���������·�ؓ��c���Ƽ��g(sh��)����ͨ���Դ���f������IJ������_�P(gu��n)׃�Q�������_�P(gu��n)׃�Q���ļ��g(sh��)�M����Ҫ�w�F(xi��n)���������·�ؓ�Ϳ��Ƽ��g(sh��)��������ͻ�ƣ��������(y��ng)���@Щ���P(gu��n)���g(sh��)�����³ɹ���ͨ���Դ����������ͨ���Դ�ļ��g(sh��)���ܡ��|(zh��)���Ϳɿ��Ե���Ҫ��ʩ֮һ�����ԏ����µ�һЩ�����M�г�����̽ӑ����1�����·���ؓ�Y(ji��)��(g��u)������������f��Ŀǰͨ���Դ��׃�Q�·�ؓ�Y(ji��)��(g��u)��Ҫ�����p�ζ��·������·��ȫ���·�����л�ȱ�c��һ���J����������С���ʈ����������p�ζ��·�����·���m�˵����ڴ��ʈ��τt����ȫ��׃�Q�·���mȻҲ���F(xi��n)һЩ�µ�׃�Q�·�·�ؓ䣬���ݔ����ݔ���y����CuK׃�Q������ݔ�ȸߵ�Buck-Flyback׃�Q���ȵ���������ܛ�_�P(gu��n)���g(sh��)��һϵ���¼��g(sh��)���d�����·�ؓ���콵������Ŀǰ����r�����·���ؓ�׃�������������ĽǶȁ��f��������������İ�����������l�ܣ����l(f��)չ���˸��N���ӵ����P(gu��n)�������������ѽ�(j��ng)�����^�Ĺ��ʼ����·��PIC���ij��F(xi��n)�����(q��)��ģʽҲ��������(q��)��ģʽ�l(f��)չ��늉����(q��)��ģʽ����Ŀǰ��ͨ���Դ�У����ڑ�(y��ng)�È��ϵIJ�ͬ����Ч��(y��ng)�ܣ�MOSFET���ͽ^���ſؾ��w�ܣ�IGBT����ʹ�õ��^��ăɷN������һ����f����Ч��(y��ng)���(q��)���������_�P(gu��n)�l�ʸ����������Ĝض�ϵ��(sh��)�����ڲ�(li��n)���䲻��֮̎���ܵ���Y(ji��)��(g��u)�������͉����������w����^���mȻ��(li��n)���Խ�������裩��ͨ���J�������С�С���ʷ�����(n��i)�����È�Ч��(y��ng)�����m�˵������_�P(gu��n)�l�ʺܸ������Խ��������Դ���w�e�������ͳɱ����(q��)�ӿ��Բ��ú��ε��}�_׃����������ͨ�^���Ӳ�(li��n)�ķ�������Q����������Ć��}�����͉�ֵ�^��Ҳ�m�φ��ཻ��ݔ�����r��IGBTݔ�����������͉��ߣ��w���С���Ǵ����_�P(gu��n)�Դ�����x�����������_�P(gu��n)�l�ʵͣ��(q��)���mȻҲ��늉�����Ҫ�Ȉ�Ч��(y��ng)��(f��)�sһЩ����ض�ϵ��(sh��)��ֵؓ�����ײ�(li��n)���������P(gu��n)���r�����������β�F(xi��n)��������IGBT�c��Ч��(y��ng)�ܣ����߸������L���в�ͬ�đ�(y��ng)�È��ϣ��S�����g(sh��)���M�����������������Ƿȱ������ͨ�^�·�в����m��(d��ng)?sh��)Ĵ�ʩ����Q������һ��ֵ��ע��Ć��}�ǣ�����Ŀǰ�Դ�_�P(gu��n)�l�ʺܸ���Ҫ���O(sh��)Ӌ�ˆT�����l����׃�Q�·����������J�R���������ĸ��l����������������˽⣬��(w��n)�B(t��i)�����̈́ӑB(t��i)���������������Ƿ���������ʧЧ�C�ƻ�p�ęC�����Բ�ȡ�����ı��o��ʩ���f��߀��������˽��@Щ���������IJ�ͬ�_�P(gu��n)�C���������c���������ڸ��l�r��ϵ�y(t��ng)����·��ؓ�d�ĸ��N��Ч�迹�͵��l�r��e�ܴ����������^�ߵ��_�P(gu��n)�l������ϵ�y(t��ng)�����ֲ�������׃�����߾ֲ��a(ch��n)����ʎ��������ij����ֵ�λ�ij���l�ʶήa(ch��n)����ʎ�������@Щ���ڵ��l�r�Dz��ؿ��]������ˣ��O(sh��)Ӌ�ˆT�������������������Ե��˽�ͳɞ��·�O(sh��)Ӌ�ɹ��c���һ����Ҫԭ��֮һ���������˽�ò���������e�`����(d��o)���·ʧ�������nj�Ҋ���r��������������J�R���O(sh��)Ӌ�ɹ���һ����Ҫ�l�������^��ĿǰһЩ�¼��g(sh��)�ij��F(xi��n)����ܛ�_�P(gu��n)���g(sh��)�Q���ȣ�������׃�Q�·���ֲ�����(sh��)�����������،��������İ�ȫ�����^(q��)��Ҳ��һ���ij̶��Ͻ����ˌ�������Ҫ������ 2����늴�Ԫ�����ĽǶȁ��f��ͨ���Դ�д���ʹ�ô���������������N����׃������늿����� ������������V�����C��늸е����������·��������Ҫ��Ӱ������w�����������Բ���Ҫ���Ǿ��Ќ��Ĝضȷ��������l�p��С���C�B���ͣ���(d��o)���ʸ�����׃�����@�Ƅtͨ�L(f��ng)ɢ��ã����@�MҪ�ö�ɼ������@���������~Ƥ�@�ƣ��Ԝp�ٸ��l�r���wЧ��(y��ng)�����ڹ����������ܵĸ������Լ�ܛ�_�P(gu��n)���g(sh��)�ȵIJ�����ʹ���Դ�_�P(gu��n)�p�Ĵ���½�����˽����l׃�������������������ēp���ѳɞ�����_�P(gu��n)�ԴЧ�ʵ�һ����Ҫ����������ݔ��׃�������ʵ��P(gu��n)�I�Ǵ��Բ��ϵ��x���c�Y(ji��)��(g��u)�Ĵ_������ʹ׃�����Y(ji��)��(g��u)�o�����p��С����(y��ng)�x��ʹŸБ�(y��ng)���ȡ�����ʼ��}�_�Ō�(d��o)���^������?gu��)��ĺ��С�Ĵ��Բ��ϡ�ͬ�r�����ý^�����ȸߵIJ������龀Ȧ�g�Ľ^�������Mһ�����������ݔЧ�ʡ��� Ŀǰ�����l�_�P(gu��n)�Դ����һ������F���w���Բ�������׃�����Ĵ��ġ��F���w������ʸ������l�p��С��������ʹŸБ�(y��ng)����̫�������Դ�����e��Ҫ�^��Ӱ����ϵ��(sh��)����������F���w�lj��T���ɵ��������״��ԣ������Ҏ(gu��)�������һ�������y���Ǿ��B(t��i)�Ͻ��ǽ���l(f��)չ�������²�����λ�e���w���Ժܵͣ��]�о������o���������o��ֹ�Ů��\�ӵ��ϵK���״Ż�����ŸБ�(y��ng)���ȸ�������ʴ������u�����������C�B��С���ܺĵ�������U��؛�Ĵ��ĴŸБ�(y��ng)���ȴ�ͣ����ԭh(hu��n)�ι�؛�Ĵ��Ąt�@�ƾ�Ȧ���^���y�����⣬��ߴ粻�����Ҫ�M����������_�P(gu��n)�Դ����߀�д��Mһ����Q�����ڷǾ��B(t��i)�Ͻ��������ʸߺ�ʹŸБ�(y��ng)���ȴ�ă�(y��u)�c�����l�p��С����(d��o)�Ų���(d��o)�����ˣ����Ǹ��l�_�P(gu��n)�Դ�����^������Ĵ��Բ����������Mһ���pС�Դ���w�e�������������ܺģ����Ч�������ڇ���(n��i)���ڷǾ��B(t��i)�Ͻ�Ļ��A(ch��)������(j��ng)�^̎����ʹ��׃�����Ͻ�ܛ�Ų����������ܱȷǾ��B(t��i)�Ͻ���ߣ����m�������_�P(gu��n)�Դ׃������늿���������(n��i)���Ё����@Щ���������������_�P(gu��n)�Դ����Ҳ��(y��ng)��(d��ng)ָ�����ڸ��l�_�P(gu��n)�Դ��ʹ�õĴ����������S���µ����c�������l�ʏĹ��l���װ�ǧ�գ������dZXDU68 S601���l�_�P(gu��n)�Դ�C�� �ʏĺ��ߵ���ʮǧ�������װ�ǧ����������������Ƿ����ҵ����Ż���һ�����Q����ijЩ�·�����ȡȥ�Ŵ�ʩ�ȵ����ڸ��l���\�еĴ����������ϡ��Y(ji��)��(g��u)��ģ�����O(sh��)Ӌ����ˇ���p�ġ��l(f��)��ȶ�憖�}�������^�m(x��)����̽���о����ԫ@���^��M��Ľ�Q����
3���_�P(gu��n)׃�Q�����¿��Ƽ��g(sh��)�c�·����������l(f��)չ��һ���̶Ⱥ�Ҫ�Mһ����߮a(ch��n)Ʒ����������횲����µĿ��Ʒ������µļ��g(sh��)��Ŀǰ���µĿ��Ʒ����ͼ��g(sh��)��Ҫ��ܛ�_�P(gu��n)���g(sh��)������(sh��)У�����g(sh��)�������������Ƽ��g(sh��)�����ģʽ���Ƽ��g(sh��)�����}�_��one-cycle�����Ƽ��g(sh��)�ȵ�����ܛ�_�P(gu��n)���g(sh��)��ָ������������늉���������l�����M�ГQ���������ܛ�_�P(gu��n)���g(sh��)���Խ������������_�P(gu��n)�p�ģ����ϵ�y(t��ng)���_�P(gu��n)�l��������׃�Q�����w�e��������ʹ��ϵ�y(t��ng)��ݔ���y���p�������ҿ��Կ˷�׃�Q�·�������ֲ�����(sh��)��������������ϵ�y(t��ng)���_�P(gu��n)ɤ����չ��ϵ�y(t��ng)���l��������ϵ�y(t��ng)�ĄӑB(t��i)�����������ʇ���(sh��)У�����g(sh��)ͨ�^��ԴУ���ķ�����ʹ�þW(w��ng)��(c��)������θ�ۙ늉��������@�ӣ��ђ���늾W(w��ng)���_�P(gu��n)�Դ׃��һ���ӽ�������ؓ�d�������������ƾW(w��ng)��(c��)�C����������ƾW(w��ng)��(c��)������(sh��)�������Դ�ĸߴ��C���a(ch��n)������������Ⱦ�����늾W(w��ng)���|(zh��)�����p�ٟo�����ʵ����Ӻ��_����(ji��)�ܵ�Ч����Ҳʹ���Դ��늴ż����������õ��˼ӏ��������������Ƽ��g(sh��)�����܌��F(xi��n)�Դģ�K���ԄӾ������ֿ��Ԍ��F(xi��n)�Դģ�K���������Դģ�K���˳��c���Ӿ���Ӱ�ϵ�y(t��ng)����������������ĸ�����_·����·�Լ�ģ�K�ēp�Ķ�����Ӱ�ϵ�y(t��ng)����ģ�K��������������Ŀǰ�(y��u)��ľ������������ģʽ���Ƽ��g(sh��)�t������늉��������ƵĻ��A(ch��)����������������������ڌ�늉����ƵĻ��A(ch��)�ϣ������Ҳ�M�ЄӑB(t��i)�Ŀ�����ʹ���܉������}�_������M�п��ƣ�һ�����ܼӿ�ϵ�y(t��ng)�ĄӑB(t��i)����(y��ng)��������һ������Ҳʹ��׃������ƫ����r��ؓ�d�ľ������Դģ�K���^�d���·���o�ȵõ����@�ĸ����������}�_���Ƽ��g(sh��)��һ�N����̖�ķǾ��Կ��Ʒ�������ÿһ��������ȡ�_�P(gu��n)׃������(j��ng)�^�e�����ķe���c�o��늉����^�����`�(j��ng)�^�Ŵ��ӑB(t��i)���{(di��o)��(ji��)׃�Q��ռ�ձȵĴ�С������ÿ�����ڃ�(n��i)��ռ�ձ�ֵֻ�cԓ���ڵ��_�P(gu��n)׃�����P(gu��n)�����_�P(gu��n)׃����늉����������ƽ��ֵ��һ�����ڃ�(n��i)���_�µķ�(w��n)�B(t��i)��ʹ���_�P(gu��n)׃����������������ƽ��ֵ�Ϳ������oՓ�Ƿ�(w��n)�B(t��i)�̈́ӑB(t��i)���]���`�����������õĿ��ɔ_�����Ϳ��ٵĄӑB(t��i)푑�(y��ng)������ԓ���g(sh��)�ȿ�����PWM���ƣ��ֿ�����PFM�������ȿ�����Ӳ�_�P(gu��n)���ƣ��ֿ�����ܛ�_�P(gu��n)�������ȿ�����늉�ģʽ���ƣ��ֿ��������ģʽ�������ȿ���������B�m(x��)�Ĺ���ģʽ�������ֿ�����������B�m(x��)�Ĺ���ģʽ���������_�P(gu��n)׃�Q�����Ʒ�ʽ�l(f��)չ��һ����Ҫ���������@Щ���M���g(sh��)��(y��ng)�õ�ͨ���Դ�У�����ʹ��ͨ���Դ����ˮƽ��һ���µ��_�A������ܛ�_�P(gu��n)׃�Q�·������׃�l���Ƶģ�PPM����Ҳ�к��l���Ƶģ�PWM�������ں��l���Ʒ�ʽҪ��(y��u)��׃�l���Ʒ�ʽ�����lܛ�_�P(gu��n)���g(sh��)�ѳɞ�ܛ�_�P(gu��n)���g(sh��)�����������������ƿ��Ƶ�ȫ��׃�Q�·���C��PWM���g(sh��)��ܛ�_�P(gu��n)���g(sh��)�ă�(y��u)�c���ڴ���(n��i)���F(xi��n)PWM���ƣ����F(xi��n)ݔ��늉�������Ĵ��o���{(di��o)��(ji��)�����ڹ��������Q��˲�g�����F(xi��n)��늉��_�P(gu��n)�Q�����ѳɞ�����ǰ;��ܛ�_�P(gu��n)׃�Q�·�ؓ�����Ŀǰ����S�����ƿ���ܛ�_�P(gu��n)�·Ҳ�в���֮̎����Ҫ��׃�Q�·��������늉��_�P(gu��n)����խ���،���ܛ�_�P(gu��n)���������Mһ���V����(y��ng)�õ�ǰ�ᣬ�����W(xu��)��һֱ��Ŭ�������һϵ�и��M��������Ҫ�������������棺һ�Dz�ȡ��ʩ���،������۵���늉��_ͨ������ ���ǰќ����ۘ�(g��u)���������P(gu��n)������ܛ�_�P(gu��n)������ԭ߅���_�P(gu��n)�ܺ�߅���������O��ͬ�r���F(xi��n)����ܛ�_�P(gu��n)��Ŀǰ�����@���涼ȡ���˺ܴ���Mչ����ܛ�_�P(gu��n)���g(sh��)��ͨ���Դ�еďV����(y��ng)�ô������õĻ��A(ch��)�����ڹ��ʹ̔�(sh��)У���·�����������PFC���g(sh��)Ҳ�ѷdz����������·ͨ�����������ȣ�boost���·������늉�������p�]�h(hu��n)���Ƶķ�������Ҫ����ƽ��������Ƶķ���������늉��h(hu��n)�Á���(w��n)��ݔ��늉�������h(hu��n)ʹ�������ۙ늾W(w��ng)�����Ҳ�������������h(hu��n)�Ľo����늉��h(hu��n)ݔ���c늾W(w��ng)����������Ұ벨��100Hz���ij˷e�����늉��h(hu��n)�Ď������ܳ��^10OHz����t������θ�ۙ���ã�һ���O(sh��)Ӌ�l����30Hz������ͬ�r�����˱��C�������ƻ�·�������c늾W(w��ng)�ķ�ֵ�o�P(gu��n)����Ҫ�M�б�Ҫ��ǰ���a�����F(xi��n)���Ј����г���Ŀ���оƬ�����Ё���Ӳ�_�P(gu��n)���Ƶ���Ҳ�Ё���ܛ�_�P(gu��n)���Ƶġ����������(sh��)У�����g(sh��)�ϱ��^��(f��)�s���mȻ����(n��i)������(y��ng)���о��ɹ�Ҳ�ܶ�����Ҫ��(y��ng)���ڴ����_���dZXDU68 S601���l�_�P(gu��n)�Դ�C�� �P(gu��n)�Դ�������������Mһ�����о���̽ӑ����
�ڿ���ģʽ���������в���늉�ģʽ���Ƶģ�Ҳ�Ё������ģʽ���Ƶ���늉�ģʽ�džέh(hu��n)���������ģʽ�������p�h(hu��n)�������@�ɷN����ģʽ���л�ȱ�c���������lȡ���l�Ć��}��Ҫ����(j��)�Դ�ľ��w���HҪ���Q����ȡ���m�Ŀ��Ʒ�ʽ�����^�����ģʽ���Ƽ��g(sh��)�������^�õؽ�Q�����Դ�IJ�(li��n)���}�����¼��g(sh��)�����������_�P(gu��n)׃�Q���l(f��)չ�����ı��}�_��������ֵ��ע��ķ���֮һ�����^��Ŀǰ��δҊ���б��}�_���Ƽ��g(sh��)��ͨ���Դ�a(ch��n)Ʒ���F(xi��n)���� �c��ͬ�r���������S����������ӹ�˾�����m��(y��ng)������ӌW(xu��)�l(f��)չ���˳��������Ƴ��m��(y��ng)���N���Ϳ��Ƽ��g(sh��)��оƬ��������UNITRODE��˾������һ���ܳ������������_�l(f��)��оƬ����늉�ģʽ���Ƶģ����������ʽ���Ƶ������w�˹�����ӌW(xu��)���еđ�(y��ng)���I(l��ng)�����������c�_�P(gu��n)�Դ�������P(gu��n)��оƬ��Ҫ�����ƿ���ϵ��оƬ������Ӳ�_�P(gu��n)������(sh��)У��ϵ��оƬ������ܛ�_�P(gu��n)�������У��ϵ��оƬ���_�P(gu��n)�Դؓ�d����ϵ��оƬ�ȵ����@Щ�������õ�ܛ�_�P(gu��n)���������ʹ̔�(sh��)У��оƬ���������P(gu��n)оƬ�����Ƴɹ�����ܛ�_�P(gu��n)���g(sh��)������(sh��)У�����g(sh��)�Լ������¼��g(sh��)��ͨ���Դ�đ�(y��ng)�õ춨�˻��A(ch��)���� ����ͨ���Դ���·ģ�ͺ���Փ������Ŀǰ�_�P(gu��n)׃�Q���ķ���������Ҫ�Д�(sh��)�ַ��淽���ͽ�����ģ��������(sh��)ֵ��(sh��)�ַ���ķ�������SPICE�ȵȣ���(zh��n)�_�ȸ������Եõ�ϵ�y(t��ng)��푑�(y��ng)���ԺͲ��Σ����]�����_���������x��������ģ���������_���������x�����O(sh��)Ӌ�ͷ�������ָ��(d��o)���x������Ҫ��һ���ļ��O(sh��)����һ���J����������ϵ�y(t��ng)������Ҫ�������ӴΣ��������Ӵ����·�Ӵκ�ϵ�y(t��ng)�ӴΣ��ڲ�ͬ���O(sh��)Ӌ�A�����P(gu��n)�ĵĂ�(c��)���c��ͬ�������Ӵεķ�����Ҫ�����о��������_���P(gu��n)�^�����@������Ҫ�O(sh��)Ӌ�ˆT���������^��̵��J�R��������^����������ģ�ͅ���(sh��)���������˽�ֲ�����(sh��)�������_���P(gu��n)�^���^�̵�Ӱ������O(sh��)Ӌ�ͷ����ṩ��һ��������(j��)���·�Ӵεķ�����Ҫ�nj�����^�����M�з������˕r��һ���������(d��ng)���������_�P(gu��n)����Ҫ�nj��·���ؓ�Y(ji��)��(g��u)�����Ʒ������·���Եȵ��M�з�����ϵ�y(t��ng)�Ӵεķ�����Ҫ��������ϵ�y(t��ng)�Ŀ��Ʒ�ʽ������(sh��)�x����PID����(sh��)�x�ȵ����·ģ����һ��Ă��f����(sh��)���ɡ�����ĽY(ji��)����һ���ij̶��������˽�ϵ�y(t��ng)�Ĺ�����r�ṩ�������������O(sh��)Ӌ���_������ϵ�y(t��ng)�����������S��Ӌ��C���g(sh��)�ͷ��漼�g(sh��)�İl(f��)չ������һϵ�н����Ѻõķ���ƽ�_���F(xi��n)�����У����͵���Spice��ICAP4.0-Interactive Circuit Analysis rogram��WE4.0-Electronics Workbench �ȵ����������߂������������N��̖�l(f��)�������Լ�ʾ������BODE�D�@ʾ���ȵ����ǵ��͵���ӌ���_����������ϵ�y(t��ng)���O(sh��)Ӌ�ṩ�������o�������������dZXDU68 S601�_�P(gu��n)�Դ���g(sh��)����(sh��)/��rĿǰ���ٵ��Դ�����ߌ�����ܛ��ʹ�����ղ����쾚��δ�ܳ�����Ï����CAD�ֶ��M�з������O(sh��)Ӌ����(d��o)�����O(sh��)Ӌ���߲���Ҫ�ď�·�������Еr������O(sh��)Ӌ��ʧ�������⣬����ܛ���r���FҲ���ʹ����һ�����y��һ��ԭ�������ڽ�����ģ������Ŀǰ���еĸ��N�����������������(sh��)����R.D.Middlebrook������Ġ�B(t��i)���gƽ��������ռ�ձȼә�(qu��n)ƽ��������A(ch��)������B(t��i)���gƽ�����Ǐ�׃�Q���IJ�ͬ�ؓ�Ġ�B(t��i)���g���̳��l(f��)����(j��ng)�^ƽ��——С��̖�_��——���Ի�̎������һ���Ǿ��ԡ��r׃���_�P(gu��n)�·�D(zhu��n)׃?y��u)�һ����Ч�ľ������r��׃���B�m(x��)���·�����ԑ�(y��ng)�ý�(j��ng)�������Փ�ķ�������ϵ�y(t��ng)�ķ�����������׃�Q����܉�E�D��Bode�D�ȵ������l���(n��i)�����O(sh��)Ӌϵ�y(t��ng)���ɽз���ϵ�y(t��ng)��ƽ���c������С��̖�_�ӕr���Ƶ�˲�B(t��i)푑�(y��ng)�����Լ�ϵ�y(t��ng)�ķ�(w��n)���Եȵ���? ��B(t��i)���gƽ��������ͨ�ã����_�P(gu��n)׃�Q���ṩ�˺����ϵ�y(t��ng)�ķ����������Ǻ����Ժ;��_�Ե�һ���^�õ����ԣ�Ҳ�Ǵ����(sh��)׃�Q�����������Ļ��A(ch��)�����ǣ���Ҳ�в����y�Կ˷���ȱ�c����o����Ӌݔ���y���Ĵ�С����(w��n)���Է��������(zh��n)�_���y�Ԍ�����̖�^���������dZXDU68 S601���l�_�P(gu��n)�Դ�C�� ������Ҳ���ܷ���ܛ�_�P(gu��n)׃�Q������
��Ҏ(gu��)ͨ���Դ���O(sh��)Ӌ����PWM׃�Q����̎�������H�ǰ�����(d��ng)��һ�����l�ĭh(hu��n)��(ji��)�����ǰѽ�(j��ng)�^��B(t��i)���gƽ���Ժ����õ��·ģ�������εó�ռ�ձȣ����������cݔ��늉����������������f����(sh��)�P(gu��n)ϵ���Լ�ؓ�d�����ݔ��늉��ȵȔ_������ݔ��늉��Ă��f����(sh��)�P(gu��n)ϵ�����ý�(j��ng)�������Փ�ij�Ҏ(gu��)�����O(sh��)Ӌϵ�y(t��ng)��Ȼ���䷀(w��n)���Եȵ�����ָ��(bi��o)�M��У����]�з�ӳϵ�y(t��ng)�ĸ��l�������������l�IJ�������Ҫ�������t���õĽY(ji��)����������(zh��n)�_�����ҵ��Ƿ�(w��n)���Է������ٴ��������H�ϣ��_�P(gu��n)�Դ��һ���Ǿ��Ե�ϵ�y(t��ng)��ϵ�y(t��ng)��������ͬ���^���^����������ݔ��늸к�ݔ����ݵ��^��r�g����(sh��)�M�ɵĺ��뼉�ĕ��B(t��i)�^�����Լ�����������ÿ���_�P(gu��n)�^�����������ֲ�����(sh��)����Ҫ���õ����뼉�_�P(gu��n)�^���^�̡�һ����f����ʹ�Ǵ���̖�����������������ƽ���ķ�����Ԓ�����õ��ĽY(ji��)���Ƿ�ӳ�r�g����(sh��)����^���^�������r�g����(sh��)С���_�P(gu��n)�^���^�̺��y��ӳ�������@�����ȡƽ���ǰѸ��l����ȥ�������mȻ����������ĸ��l�W(w��ng)�j(lu��)���Ѳ�ͬ�^���^�̵Ŀ�׃������׃���֟o����Փ�Ͽ��Եó��������������ڽ�ď�(f��)�s�ԣ��y���ڹ����еõ����w�đ�(y��ng)�����e�ǽ������ܛ�_�P(gu��n)���g(sh��)���F(xi��n)�Ժ�����(d��o)� �B(t��i)���gƽ�����y���M�з������mȻ������F(xi��n)�ܶ�������������C��ƽ�ⷨ����Ч�·�����ɘӔ�(sh��)��(j��)������ЧС�������ȵ��������@���^���I(y��)�����е���Ҫ���(f��)�s���ַ�����Ӌ�����^�����е��y�Եõ����dZXDU68 S601�_�P(gu��n)�Դ���g(sh��)����(sh��)/��r�@ʽ�⣬�еĽ��������x�����@�����⣬ϵ�y(t��ng)���_�h(hu��n)���]�h(hu��n)��ģ�ͽ���Ҳ��Ҫһ���ļ��������������^�m(x��)̽ӑ���Ρ��������������@�������x���·ģ�ͺ͝M�㹤����Ҫ�Ĵ���̖������������
����늴ż����Է�����늴ż���EMC��electromagnetic compatibility����ָ�����Ŀ��g���r�g���l�V�YԴ�������N�O(sh��)�����һ���������������ܲ���׃�������O(sh��)���ϵ�y(t��ng)��Ҫ�������õ�늴ż��������͑�(y��ng)�Ȳ���늴ŭh(hu��n)����Ӱ푣��ֲ��o�h(hu��n)������@�NӰ���늴ż�������늴Ÿɔ_��EMI����늴����жȣ�EMS���ɂ�������늴Ÿɔ_���O(sh��)���ϵ�y(t��ng)����l(f��)���ĸɔ_��늴����ж����O(sh��)�䌦����ɔ_�����г̶Ⱥ͵ֿ����ɔ_��������늴Ÿɔ_���Ђ���(d��o)�ɔ_��ͨ�^��(d��o)�����Դ��������͵ĸɔ_����ݗ��ɔ_��ͨ�^���g늴Ų������ݗ��ɔ_���������H��r������늴Ÿɔ_�����ͨ���O(sh��)��ʧЧ��ͨ������������Ӌ��C�`�a����̖�`������ȵȐ�����r��ֱ��Ӱ�ͨ�ŵ��|(zh��)���Ϳɿ��ԣ��S��ͨ���Դ����l���ʹ��ʻ��İl(f��)չ����늴Ÿɔ_�l(f��)�������Խ��Խ����������O(sh��)��������O(sh��)��ďV����(y��ng)����Ҳʹ��ͨ���Դ��늴ŭh(hu��n)��Խ��Խ��(f��)�s��ͨ���Դ�����ט�(g��u)����Ҫ�ĸɔ_Դ�ͱ��ɔ_������Qͨ���Դ��늴Ÿɔ_�����l�ɔ_���}������Ч���ͨ���|(zh��)����ͨ�ſɿ����ИO����Ҫ����������Ŀǰ�S���Դ������ֻ�������·ԭ�������_������늴ż����Ԇ��}ȱ�������J�R�����ǵȵ��{(di��o)ԇ�^���в����a����������Դϵ�y(t��ng)�IJ�������������Ҫ�����M��늴ż����Ԇ��}������Փ�ϵĆ��}�����������һ�N���g(sh��)��ˇ���g(sh��)����Ҫ��늴Ÿɔ_�Įa(ch��n)���������Լ����յȷ�������о���Q�����������Դ������f���x����m���·�ؓ�Y(ji��)��(g��u)�����m���·Ԫ�������m��(d��ng)?sh��)?/span>�V���������õ����δ�ʩ�����������������_�Ľӵط�ʽ�����õķ��״�ʩ���ڱO(ji��n)��ϵ�y(t��ng)�O(sh��)Ӌ������ֿ��]���N���ӿ��ɔ_��ʩ�����ǽ�Q���φ��}����Ч�ķ������������ϴ�ʩ������ܛ�_�P(gu��n)���g(sh��)������(sh��)У�����g(sh��)�Լ�����һЩ�¼��g(sh��)��Ҳ�����������}�Ľ�Q�ṩһ�l�µ�;���������dZXDU68 S601�_�P(gu��n)�Դ���g(sh��)����(sh��)/��r�����Y(ji��)Փ��ͨ���Դ���O(sh��)Ӌ��������Փ���}���漰���F(xi��n)�������Ӽ��g(sh��)��������g(sh��)���Ԅӿ�����Փ��Ӌ��C���g(sh��)�����Բ��ϵ����P(gu��n)�W(xu��)��֪�R���������(y��ng)�����P(gu��n)��Փ�����³ɹ���ͨ���Դ���������������ˮƽ���|(zh��)���Ϳɿ��Ե���Ҫ��ʩ֮һ������֮�⣬ͨ���Դ���O(sh��)Ӌ��Ҳ��һ�N���g(sh��)��ˇ���g(sh��)��Ԫ�������x������ˇ���g(sh��)��늴ż����ԵĿ��]�ȵȣ�Ҳ�����O(sh��)Ӌ�rҪ��ֿ��]���J�R�������������Փ�͌��`�в�����(chu��ng)������ͨ���Դ�ĸ���?li��n)Q�������B(y��ng)��ˮƽ���_�l(f��)��������Ҫ�����x��
At present, most of the communication power supply of high frequency switching power supply instead of phase controlled power supply, controlled sealed lead-acid battery to replace acidspray proof lead-acid battery with valve, manual control technology with computer monitoring system to replace the traditional, complete communication power rep���dZXDU68 S601���l�_�P(gu��n)�Դ�C�� lacement work. The
In recent years, with the progress of technology, especially the power devices upgrade, constantly using new electromagnetic material, continuous improvement of power conversion technology, progress control method, ��nd related disciplines of technology integration, communication in power system reliability, stability, electromagnetic compatibility, to eliminate the harmonic ��nd improve power could have made considerable progress in terms of utilization rate, reduce the loss, improve the dynamic performance of the system ��nd so on. In addition, due to the wide application of computer monitoring system in communication power supply, but also makes the degree of intelligent power increasing, system maintenance ��nd management capacity has been strengthened; ��nd the perfect grounding system ��nd lightning protection measures to further improve the power supply of the MTBF time average no fault. At present, the communication power is developing in the direction of high frequency, high power density, high power factor, high efficiency, high reliability ��nd high intelligence. The
China��s communication power has gone through a road of introduction of technology, joint venture production ��nd independent development ��nd development. Due to the good market prospect of communication power ��nd the high added value of products, many domestic scientific research institutes ��nd manufacturers have invested a lot of manpower ��nd material resources to develop ��nd develop a good communication power supply. At present, domestic manufacturers of communication power supply with independent intellectual property rights are: intercontinental communication power Refco Group Ltd in Wuhan, Shenzhen, HUAWEI,���dZXDU68 S601�_�P(gu��n)�Դ���g(sh��)����(sh��)/��r ZTE, Beijing power company, Zhuhai electric power company Hangzhou gold, Qiao Xing company etc.. The main domestic joint venture manufacturers are: Shanghai xindianyuan communication power supply company, SIEMENS company in Shanghai, Shanghai in Guangzhou Pearl River Tektronix Inc - Vladimir, Telecom Equipment Manufacturing Co. Ltd. etc.. The main foreign communication power market saw the manufacturers: the United States, Liberty (Liebert), ��nd Rita (Reltech) company, Norway Yida group company (Eltek), New Zealand��s swichtec (Switchtech), etc.. After entering the 9O era, with the technological innovation ��nd progress, the products of foreign telecom power suppliers usually have the following characteristics: (1) adopt current control mode instead of voltage control mode. (2) the phase shift control mode soft switching technology, the full bridge zero voltage switch, is used. (3) the power factor correction technique is used. (4) it has the function of module automatic flow sharing. (5) the function of four remote remote control, telemetry, telecontrol ��nd remote control. (6) the management technology of battery monitoring ��nd charging current limiting function. (7) the interface - friendly monitoring software. (8) good electromagnetic compatibility ��nd lightning protection measures. (9) complete protection ��nd alarm function. The
In terms of the overall performance, there is a gap between the level of China��s telecommunication power supply ��nd the foreign products of the same kind. The main gap is the reliability, stability ��nd technical performance of the work. Therefore, organizational strength developed with independent intellectual property rights, a new generation of communication power supply with high technology content, to revitalize national industry, improve product quality ��nd competitiveness, has an important significance to improve the level of research ��nd development team, will also bring remarkable economic benefits ��nd social benefits. In
Two, communication power supply devices, circuit topology ��nd control technology of the
The power of communication, the core part is the switch converter, ��nd the converter technology progress is mainly embodied in the device, the circuit topology ��nd control technology breakthrough, therefore, the latest achievements of the application of these technologies related to communication power, communication power is one of important measures to improve the technical performance, quality ��nd reliability. Can be discussed from the following aspects: the
1, from the topological structure ��nd device aspect of the circuit, the transformation circuit topology of communication power supply mainly adopts double single ended circuit, half bridge circuit ��nd full bridge circuit. It is generally believed that it is appropriate to use double single end circuit or half bridge circuit in medium ��nd small power situations, ��nd full bridge conversion circuit is used in high-power situations. Although there are some new converter circuit topology, such as the CuK converter input, low output ripple, the transmission ratio of Buck-Flyback converter ��nd so on, but the emergence of a series of new technology of soft switching technology, cooling circuit topology transformation, in the present case, the circuit topology changes little. The
���dZXDU68 S601�_�P(gu��n)�Դ���g(sh��)����(sh��)/��r
From the perspective of power devices, electronic devices from the half controlled device (SCR), to the development of the self turn off devices of all kinds, ��nd has the power integrated circuit (PIC) ���dZXDU68 S601���l�_�P(gu��n)�Դ�C�� the emergence of the driving mode from the current driven development model of driving mode for voltage type. In the current communication power supply, due to the different applications, field-effect transistor (MOSFET) ��nd insulated gate transistor (IGBT) are two kinds of devices that are used more. Generally speaking, FET drive is easy to drive, with high switching frequency, positive temperature coefficient ��nd easy parallel connection. Its disadvantage is that its structure is limited, its voltage is not high, ��nd its body resistance is too large (although parallel can reduce its resistance). It is generally believed that in field of medium ��nd low power, FET is suitable, ��nd its switching frequency is very high, which can reduce the volume, weight ��nd cost of the entire power supply. Driving can use simple pulse transformer, ��nd it can pass through the tube.
���dZXDU68 S601���l�_�P(gu��n)�Դ�C�� ���dZXDU68 S601�_�P(gu��n)�Դ���g(sh��)����(sh��)/��r���dZXDU68 S601�_�P(gu��n)�Դ���g(sh��)����(sh��)/��r���dZXDU68 S601�_�P(gu��n)�Դ���g(sh��)����(sh��)/��r
KEYENCE������ʿ�����wģ�M��FU-10 FU-11 FU-12 FU-15 FU-16 FU-16Z FU-18 FU-18Z FU-20 FU-22 FU-21X FU-22X FU-23 FU-23X FU-24X FU-25 FU-31 FU-32 FU-33 FU-34 FU-35FA FU-35FG FU-35FZ FU-35TG FU-35TZ FU-36X FU-37 FU-38 FU-38H FU-38K FU-38R FU-38S FU-38V FU-4O FU-41TZ FU-42 FU-42TZ FU-43 FU-45X FU-46 FU-47TZ FU-48 FU-49X FU-4F FU-4FZ FU-50 FU-51TZ FU-52TZ FU-53TZ FU-54TZ FU-55 FU-56 FU-57TE FU-58 FU-59 FU-5F FU-5FZ FU-61 FU-61Z FU-63 FU-63Z FU-65X FU-66 FU-66Z FU-66TZ FU-67G FU-67 FU-67TZ FU-67V FU-68 FU-69X FU-6F FU-71 FU-71Z FU-73 FU-75F FU-76F FU-77 FU-77G FU-77TZ FU-77V FU-78 FU-79 FU-7F FU-95 FU-95Z FU-95S FU-83C FU-84C FU-85 FU-85Z FU-87Z FU-93 FU-93Z��FUȫϵ�й��w
��P+F���Ӹ�����_�P(gu��n)
�ӽ��_�P(gu��n)������_�P(gu��n)����λ�����������a�����ӽ�ʽ������,��늂�����,����������,�������a�����^��ֵ���a��,�������a��,����ģ�K����š�P+F��ȫ�ŵȖŵ�ϵ�Юa(ch��n)Ʒ��