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Controlling an active clamp switching power converter circuit based on a sensed voltage drop on an auxiliary winding
Controlling an active clamp switching power converter circuit based on a sensed voltage drop on an auxiliary winding
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机译:基于辅助绕组的感测电压降控制主动钳位开关功率转换器电路
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摘要
An active clamp switching power converter circuit includes a sensing circuit that generates a sensed auxiliary winding voltage of an auxiliary winding around the core. A primary side controller controls switching of a power switch coupled to a primary winding to control current through the primary winding and controls switching of the active clamp switch based on the sensed voltage to control leakage energy when the power switch is turned off. The primary side controller regulates timing of the switching to achieve a zero voltage switching condition prior to turning on the power switch for power efficient operation.
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