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RESONANT CONVERTER, CONTROL CIRCUIT AND ASSOCIATED CONTROL METHOD WITH ADAPTIVE DEAD-TIME ADJUSTMENT
RESONANT CONVERTER, CONTROL CIRCUIT AND ASSOCIATED CONTROL METHOD WITH ADAPTIVE DEAD-TIME ADJUSTMENT
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机译:自适应死区调节的谐振变换器,控制电路及相关控制方法
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摘要
A resonant converter has a switching circuit having a first switch and a second switch, a control circuit and a resonant circuit. The control circuit has a slope sensing circuit providing a slope sense signal based on a voltage variation at the common node of the first switch and the second switch, a slope judge circuit providing a slope judge signal, and a turn-ON control circuit providing a first reset signal to adjust a first dead-time period from turning OFF the first switch to turning ON the second switch based on the slope judge signal, the slope signal, and a current flowing through the resonant tank, and providing a second reset signal to adjust a second dead-time period from turning OFF the second switch to turning ON the first switch based on the slope judge signal, the slope signal, and the current flowing through the resonant tank.
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