TW200601672A - Control method and circuit for synchronous rectifiers used in zvs DC/DC converter - Google Patents

Control method and circuit for synchronous rectifiers used in zvs DC/DC converter

Info

Publication number
TW200601672A
TW200601672A TW093119764A TW93119764A TW200601672A TW 200601672 A TW200601672 A TW 200601672A TW 093119764 A TW093119764 A TW 093119764A TW 93119764 A TW93119764 A TW 93119764A TW 200601672 A TW200601672 A TW 200601672A
Authority
TW
Taiwan
Prior art keywords
switching device
synchronous rectifier
control method
state
zvs
Prior art date
Application number
TW093119764A
Other languages
Chinese (zh)
Other versions
TWI265671B (en
Inventor
Chao Yan
Hao-Yi Ye
Hong-Yang Wu
Jian-Hong Zeng
Jian-Ping Ying
Original Assignee
Delta Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Delta Electronics Inc filed Critical Delta Electronics Inc
Priority to TW93119764A priority Critical patent/TWI265671B/en
Publication of TW200601672A publication Critical patent/TW200601672A/en
Application granted granted Critical
Publication of TWI265671B publication Critical patent/TWI265671B/en

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  • Dc-Dc Converters (AREA)
  • Rectifiers (AREA)

Abstract

A control method for a first synchronous rectifier and a second synchronous rectifier in a switching power converter is presented. The switching power converter includes a transformer, and a first switching device and a second switching device connected in series and in parallel with an input voltage source. The first synchronous rectifier is connected with a low end of a secondary winding of the transformer. The second synchronous rectifier is connected with a high end of the secondary winding of said transformer. The first switching device is connected with a high end of the input voltage source, and the second switching device is connected with a low end of the input voltage source. The control includes the steps of driving the first switching device to an on state and the second switching device to an off state; and driving the second synchronous rectifier to an off state after the second switching device has been driven to an on state, such that a power is delivered from the primary winding to the secondary winding.
TW93119764A 2004-06-30 2004-06-30 Control method and circuit for synchronous rectifiers used in ZVS DC/DC converter TWI265671B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW93119764A TWI265671B (en) 2004-06-30 2004-06-30 Control method and circuit for synchronous rectifiers used in ZVS DC/DC converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW93119764A TWI265671B (en) 2004-06-30 2004-06-30 Control method and circuit for synchronous rectifiers used in ZVS DC/DC converter

Publications (2)

Publication Number Publication Date
TW200601672A true TW200601672A (en) 2006-01-01
TWI265671B TWI265671B (en) 2006-11-01

Family

ID=38122284

Family Applications (1)

Application Number Title Priority Date Filing Date
TW93119764A TWI265671B (en) 2004-06-30 2004-06-30 Control method and circuit for synchronous rectifiers used in ZVS DC/DC converter

Country Status (1)

Country Link
TW (1) TWI265671B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230216425A1 (en) * 2022-01-04 2023-07-06 Richtek Technology Corporation Synchronous full-bridge rectifier circuit and rectifier switch controller thereof

Also Published As

Publication number Publication date
TWI265671B (en) 2006-11-01

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees