Invention Grant
- Patent Title: Time-based synchronous rectification in a power converter
- Patent Title (中): 电力转换器中的时基同步整流
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Application No.: US11606462Application Date: 2006-11-30
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Publication No.: US07675281B1Publication Date: 2010-03-09
- Inventor: James Holt , Jonathan Klein
- Applicant: James Holt , Jonathan Klein
- Applicant Address: US ME South Portland
- Assignee: Fairchild Semiconductor Corporation
- Current Assignee: Fairchild Semiconductor Corporation
- Current Assignee Address: US ME South Portland
- Agency: Sidley Austin LLP
- Main IPC: G05F1/00
- IPC: G05F1/00

Abstract:
In one embodiment, in a power converter system having first and second switches connected in a half-bridge arrangement at a common node from which current flows through an inductor to a regulated output terminal, wherein the regulated output terminal is connectable to a load, wherein the first and second switches are turned on and off in cycles, a method is provided for synchronous rectification. The method includes: initiating a cycle in which the first switch is turned on; developing a timer based on the on-time of the first switch during the cycle; turning off the first switch and turning on the second switch during the cycle; and outputting a control signal to turn off the second switch when either the timer expires or a new cycle is initiated to turn on the first switch, thereby providing synchronous rectification in the power converter system.
Information query
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