Title:
NON-ISOLATED VOLTAGE-STABILIZATION AND CURRENT-EQUALIZATION CIRCUIT AND POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2016/026260
Kind Code:
A1
Abstract:
A non-isolated voltage-stabilization and current-equalization circuit and a power supply system. In the non-isolated voltage-stabilization and current-equalization circuit, a first voltage-stabilization and current-equalization unit (200) outputs direct current output by a first inductor (L1) and loop current output by load (500) to the load and a second inductor (L2) in a freewheeling mode respectively, so that the value of the direct current output by the second inductor is equal to that of the direct current fed into the first inductor; a voltage sampling unit (300) and a current sampling unit (400) are respectively used to sample voltage output by the first voltage-stabilization and current-equalization unit and loop current output by the load, and feed back a voltage sampling signal (VS) and a current sampling signal (IS) to a first controller (100); and the first controller drives the first voltage-stabilization and current-equalization unit to adjust the output voltage and the output current of the non-isolated voltage-stabilization and current-equalization circuit according to the voltage sampling signal and the current sampling signal, so that steady output voltage and output current can be maintained without the limit of input voltage difference and the power supply efficiency is improved.
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Inventors:
XU JIANSHENG (CN)
MO SHAOYONG (CN)
ZHANG ZHENXING (CN)
MO SHAOYONG (CN)
ZHANG ZHENXING (CN)
Application Number:
PCT/CN2015/070134
Publication Date:
February 25, 2016
Filing Date:
January 05, 2015
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02M3/156
Foreign References:
| CN104201882A | 2014-12-10 | |||
| CN102957313A | 2013-03-06 | |||
| EP2221952A2 | 2010-08-25 | |||
| CN102843028A | 2012-12-26 | |||
| US20030107352A1 | 2003-06-12 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI PATENT AND TRADEMARK OFFICE (CN)
深圳中一专利商标事务所 (CN)
深圳中一专利商标事务所 (CN)
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