Wave trough breakover control circuit and control method thereof
A conduction control circuit, wave trough technology, applied in the direction of electrical components, high-efficiency power electronic conversion, output power conversion devices, etc., can solve the problems of not improving efficiency, limited input voltage, etc., to achieve jitter and improve electromagnetic interference , The effect of improving energy efficiency
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[0043] figure 1 It is a schematic block diagram of a flyback ACDC topology switching power supply. The switching power supply 00 system includes a transformer T, and the transformer T has a primary winding N P , secondary winding N S and auxiliary winding N A , used to transfer energy and signal feedback; power supply input terminal VIN, primary side ground, control system 01, first resistor R H , the second resistance R L , the first N-type MOS tube MN1, the third resistor sampling resistor R S , the first diode D1, the first capacitor Co, the positive output voltage terminal of the secondary side, and the ground of the secondary side. The first terminal of the primary winding NP, the second terminal of the secondary winding NS and the first terminal of the auxiliary winding NA of the transformer T are terminals with the same name. Description of primary side connection relationship: primary side winding N P The first end of the transformer T is connected to the power ...
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