DC zero-voltage switched full-bridged converter of diode mutual inductor clamp
A technology of current transformer and zero voltage switch, applied in the direction of converting DC power input to DC power output, high-efficiency power electronic conversion, adjusting electrical variables, etc. , the effect of eliminating voltage spikes and eliminating losses
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[0011] attached figure 1 And attached figure 2 Shown are two schematic diagrams of the circuit structure of the zero-voltage switching full-bridge DC converter with the auxiliary winding of the transformer. by the DC power supply V in , two inverter bridge arms 1 and 2, resonant inductor 3, clamp circuit 4, isolation transformer 5, rectification and filter circuit 6, current transformer 7, current transformer rectification circuit 8 and auxiliary control power supply voltage V c composition. Q 1 ~Q 4 are four main switch tubes, D 1 ~D 4 are the switching tube Q 1 ~Q 4 body diode, C 1 ~C 4 respectively switch Q 1 ~Q 4 The parasitic capacitance, L r is the resonant inductance, T r is the isolation transformer, D 5 、D 6 is the clamping diode, D R1 and D R2 is the output rectifier diode, L f is the output filter inductor, C f is the output filter capacitor, R Ld is the load, T s is the current transformer, D R3 ~D R6 is the current transformer output recti...
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