发明授权
- 专利标题: Synchronous rectifier gate drive timing to compensate for transformer leakage inductance
- 专利标题(中): 同步整流栅驱动定时补偿变压器漏电感
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申请号: US12836933申请日: 2010-07-15
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公开(公告)号: US08358522B2公开(公告)日: 2013-01-22
- 发明人: Paul W. Coteus , Andrew Ferencz
- 申请人: Paul W. Coteus , Andrew Ferencz
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Harrington & Smith
- 代理商 Louis J. Percello
- 主分类号: H02M5/42
- IPC分类号: H02M5/42
摘要:
An apparatus for providing synchronous rectifier gate drive timing is described. The apparatus includes circuitry to receive a first signal. The apparatus also includes circuitry to generate a second signal by modifying the first signal to delay a transition from high to low for a non-zero overlap duration. An output to apply an inverse of the first signal as a gate drive timing of at least a first transistor and to apply the second signal as a gate drive timing of at least a second transistor, where the first transistor is a part of a primary side of a full-bridge synchronous rectifier and the second transistor is a part of a secondary side of the full-bridge synchronous rectifier is also included. The second signal and the inverse of the first signal are high during the overlap duration. Methods and program storage devices are also disclosed.
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