Title :
A parallel-quasi-resonant commutated soft-switching technique applicable to bridge converters
Author :
Hsu, Chin-Yuan ; Wu, Horng-Yuan ; Chen, Fu-Yuan
Author_Institution :
Dept. of Electr. Eng., Nat. Kaohsiung Inst. of Technol., Taiwan
Abstract :
A new soft-switching technique for the bridge converters is presented to provide soft-switching transitions for the power switches and thus to reduce the power losses, component stresses, and noise generation. The proposed technique utilizes parallel-quasi-resonant circuit to create a zero-voltage-switching opportunity for the inverter switches, without high switch voltage and current stresses. The overall efficiency will approach 95%. The operation of the circuit is explained. The results of PSpice simulation are also shown to verify the operation principles
Keywords :
SPICE; bridge circuits; circuit analysis computing; commutation; losses; resonant power convertors; switching circuits; PSpice simulation; bridge converters; circuit operation; component stresses reduction; current stresses; high switch voltage; inverter switches; noise generation reduction; overall efficiency; parallel-quasi-resonant commutated soft-switching; power losses reduction; soft-switching transitions; zero-voltage-switching opportunity; Bridge circuits; Circuit noise; Inverters; Noise generators; Noise reduction; Power generation; Stress; Switches; Switching circuits; Switching converters;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1997. IECON 97. 23rd International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-3932-0
DOI :
10.1109/IECON.1997.671778
