Title:
CURRENT SENSING CIRCUIT AND CONTROL CIRCUIT THEREOF AND POWER CONVERTER CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2012/122701
Kind Code:
A1
Abstract:
A current sensing circuit and the control circuit thereof and a power converter circuit. The current sensing circuit includes a sample and hold circuit (1), a rising edge detecting circuit (2), a falling edge detecting circuit (3), a timing control circuit (4), a synchronous detecting circuit (5) and a low pass filter (6). The power converter circuit uses the current sensing circuit to sense and process the current flowing through a main switch (SI).
Inventors:
SUN JIANNING (CN)
Application Number:
PCT/CN2011/071802
Publication Date:
September 20, 2012
Filing Date:
March 15, 2011
Export Citation:
Assignee:
SUNSUN LIGHTING CHINA CO LTD (CN)
SUN JIANNING (CN)
SUN JIANNING (CN)
International Classes:
H02M3/155; G01R19/00
Foreign References:
| US5523676A | 1996-06-04 | |||
| US20080284411A1 | 2008-11-20 | |||
| JP2009254047A | 2009-10-29 | |||
| CN101202510A | 2008-06-18 |
Other References:
See also references of EP 2594948A4
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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Claims: