Title:
SYNCHRONOUS RECTIFIER CONTROL CIRCUIT, CONTROL METHOD, POWER SUPPLY SYSTEM, ELECTRONIC DEVICE, ELECTRIC VEHICLE, AND POWER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/123868
Kind Code:
A1
Abstract:
This synchronous rectifier control circuit has: a first drive unit for outputting a signal for controlling the on/off of a synchronous rectifier element provided on the secondary side; a second drive unit for performing control so that the voltage between both ends of the synchronous rectifier element becomes equal to a predetermined threshold voltage during a predetermined period when rectifier current flows to the secondary side; and a drive switching unit for selectively supplying the output from the first drive unit and the output from the second drive unit to the synchronous rectifier element.
Inventors:
OYAMA YOSHIKI (JP)
Application Number:
PCT/JP2018/041150
Publication Date:
June 27, 2019
Filing Date:
November 06, 2018
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
H02M3/28; H02M7/21
Foreign References:
| JP2014090534A | 2014-05-15 | |||
| JPH11341799A | 1999-12-10 | |||
| JP2009268325A | 2009-11-12 |
Attorney, Agent or Firm:
SUGIURA, Masatomo et al. (JP)
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