Title:
DIGITALIZED DOUBLE-EXCITATION UNINTERRUPTED SWITCHING POWER SUPPLY
Document Type and Number:
WIPO Patent Application WO/2016/115998
Kind Code:
A1
Abstract:
A digitalized double-excitation uninterrupted switching power supply comprises a main transformer (T) provided with a primary coil (N1) and a secondary coil (N2), a main loop, a synchronous rectification output loop, a synchronous direct current converting circuit and a digital center control unit. The main loop comprises high voltage switching networks (Q1, Q2, Q3, Q4), a resonant inductor (Lr), the primary coil (N1) and a resonant capacitor (Cr). The synchronous rectification output loop comprises a current-double rectifier and filter circuits (L1, L2, C) connected to two output ends (E1, E2) of the current-double rectifier, and the current-double rectifier is constructed by connecting two synchronous rectifier tubes (Q5, Q6) and the secondary coil (N2) in parallel, and the synchronous rectifier tubes (Q5, Q6) are connected in series oppositely. The synchronous direct current converting circuit comprises two low voltage switching tubes (Q7, Q8), an isolation diode and a low voltage direct current source (LVDC). The digital center control unit automatically selects, according to the voltage change of a high voltage direct current bus, either the main loop or the synchronous direct current converting circuit to work, and provides stable DC output. The digitalized double-excitation uninterrupted switching power supply is small in size, low in cost, and can effectively ensure stable power output.
Inventors:
YIM MAU SHIN FRANK (CN)
Application Number:
PCT/CN2016/070833
Publication Date:
July 28, 2016
Filing Date:
January 13, 2016
Export Citation:
Assignee:
JAGESON ELECTRONIC TECHNOLOGY SHENZHEN CO LTD (CN)
YIM MAU SHIN FRANK (CN)
YIM MAU SHIN FRANK (CN)
International Classes:
H02J9/06
Foreign References:
| CN104682546A | 2015-06-03 | |||
| CN204441998U | 2015-07-01 | |||
| CN201742151U | 2011-02-09 | |||
| CN201536275U | 2010-07-28 | |||
| JPH08242579A | 1996-09-17 |
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
北京超凡志成知识产权代理事务所（普通合伙） (CN)
北京超凡志成知识产权代理事务所（普通合伙） (CN)
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