#152 Half Bridge SMPS Converter
The circuit for half-bridge SMPS (as discussed in the video) It consists of an uncontrolled rectifier, two capacitors C1, C2, two power MOSFETs M1 & M2, one transformer with center-taped secondary side, the capacitors C1 & C2 have equal capacitance, therefore voltage across each is half of the source voltage . When M1 turned on, voltage of C1 appears across transformer primary thus voltage induced in secondary is VS/2,N1.N2 diode D1 is forward biased.
When M2 is turned on, a reverse voltage of C2 appears across transformer primary, voltage induced in secondary winding is -VS/2.N1.N2, therefore diode D2 gets forward biased. This means that transformer primary voltage swings from +ve and -ve
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Видео #152 Half Bridge SMPS Converter канала Haseeb Electronics
When M2 is turned on, a reverse voltage of C2 appears across transformer primary, voltage induced in secondary winding is -VS/2.N1.N2, therefore diode D2 gets forward biased. This means that transformer primary voltage swings from +ve and -ve
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Видео #152 Half Bridge SMPS Converter канала Haseeb Electronics
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