发明名称 |
Synchronous rectifier back bias control circuit |
摘要 |
A circuit is disclosed that efficiently prevents the turning on of the synchronous rectifier in a buck converter during a predetermined condition, so as to prevent current reversing through the synchronous rectifier during that time. In one embodiment, the present invention provides control of the synchronous rectifier during the soft-start time for a non-isolated DC-DC buck converter, thereby preventing current reversing (sinking) during its soft start process. In another embodiment of the present invention, a circuit uses a signal indicative of a soft-start condition for a converter to prevent the turning on of the synchronous rectifier during the soft-start time. The present invention also solves the aforementioned synchronous rectifier back bias problem for converters used in a paralleled converter configuration.
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申请公布号 |
US2004174144(A1) |
申请公布日期 |
2004.09.09 |
申请号 |
US20030378696 |
申请日期 |
2003.03.03 |
申请人 |
HUANG HONG;YOUNG CHRIS M. |
发明人 |
HUANG HONG;YOUNG CHRIS M. |
分类号 |
H02M1/00;H02M3/158;(IPC1-7):G05F1/613 |
主分类号 |
H02M1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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