发明名称 |
Control circuit for synchronous rectifiers in DC/DC converters to reduce body diode conduction losses |
摘要 |
A controller for a switching power supply having first and second synchronous rectifiers that minimizes the reverse recovery time and body diode conduction losses of each of the synchronous rectifiers. The controller includes a first controller that predicts the optimal turn-on and turn-off time of the first synchronous rectifier as a function of voltage measurements of the previous switching cycle and the timing of the pulse width modulator signal in the current switching cycle. The controller also includes a second controller that predicts the optimal turn-on and turn-off time of the second synchronous rectifier as a function of voltage measurements of the previous switching cycle and the timing of the pulse width modulator signal in the current switching cycle.
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申请公布号 |
US2002141209(A1) |
申请公布日期 |
2002.10.03 |
申请号 |
US20010024870 |
申请日期 |
2001.12.19 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
BRIDGE CHRISTOPHER DAVID |
分类号 |
H02M3/335;(IPC1-7):H02M5/42 |
主分类号 |
H02M3/335 |
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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