Transformer clamping zero voltage switch three level full bridge converter and its expansion circuit
A technology of full-bridge converter and transformer, which is applied in high-efficiency power electronic conversion, conversion equipment without intermediate conversion to AC, climate sustainability, etc., and can solve the problems of expensive switching tubes and other issues
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[0019] Depend on image 3 It can be seen that the specific composition of the present invention is that the output of the DC voltage 1 is connected to the input voltage dividing capacitor 2 and the switch tube chopper circuit 3, and its output is connected to the primary side of the transformer of the transformer isolation circuit 4, and the output of the transformer isolation circuit 4 passes through the diode The rectifier circuit and the inductance-capacitance filter circuit 5 are finally connected to the DC voltage output circuit 6 . Depend on figure 1 , figure 2 , image 3It can be seen that the inventive point of the present invention lies in the switching tube chopper circuit 3 and the transformer isolation circuit 4, wherein the specific composition of the switching tube chopper circuit 3 is the four switching tubes Q of the 1st, 3rd, 5th and 7th 1 , Q 3 , Q 5 , Q 7 The positive and negative ends of the positive series are connected in parallel to the two voltag...
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