Synchronous rectification control method of switching power supply and control module thereof
A technology of synchronous rectification and switching power supply, applied in the field of synchronous rectification control method of switching power supply and its control module, can solve problems such as voltage spikes, influence driving voltage, reduce efficiency, etc., and achieve the effect of dynamic adjustment in time and improving reliability
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[0040] image 3 The schematic circuit diagram of the synchronous rectification control module of the switching power supply of the present invention is shown. The synchronous rectification works in the switching power supply. The synchronous rectification includes a synchronous rectification tube 302, which is applied to a synchronous rectification circuit device; it also includes an integrated circuit 301, and the integrated circuit 301 The control synchronous rectifier is a synchronous rectifier control module in the switching power supply. The switching power supply at least includes a sampling module 303, a feedback module 304, an isolated feedback circuit 305, and a main control circuit 306. The sampling module 303 samples the output signal of the switching power supply. The output signal may be a voltage signal or a current signal, and the output signal may be a voltage and The integrated signal of the current; the feedback module 304 receives the sampling signal, and ou...
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