Title :
Auxiliary resonant commutated snubber-assisted PWM inverter with voltage clamping diodes and its application to X-ray high voltage generator
Author :
Takano, Hiroshi ; Takahashi, Jun ; Domoto, Takuya ; Nakaoka, Mutsuo
Author_Institution :
Res. & Dev. Center, Hitachi Med. Corp., Chiba, Japan
fDate :
6/23/1905 12:00:00 AM
Abstract :
An auxiliary resonant commutated snubber-assisted inverter with bidirectional active power switches and voltage clamping diodes is presented in this paper. The voltage clamping diodes protect the bidirectional active switches from spike surge voltage caused by recovery energy of the auxiliary inductors and parasitic wired inductances. Moreover, a variety of resonant snubber-assisted circuits with voltage clamping diodes are also classified and presented from a practical point of view. Finally, the performances of the proposed auxiliary resonant commutated snubber-assisted inverter with voltage clamping diodes is demonstrated and evaluated in order to prove its feasibility applying for X-ray high-voltage generator
Keywords :
PWM invertors; X-ray production; commutation; inductance; inductors; power semiconductor diodes; resonant power convertors; snubbers; surges; switching circuits; PWM inverter; X-ray high voltage generator; auxiliary inductors; auxiliary resonant commutated snubber-assisted inverter; bidirectional active power switches; bidirectional active switches protection; parasitic wired inductances; recovery energy; spike surge voltage; voltage clamping diodes; Active inductors; Clamps; Diodes; Performance evaluation; Pulse width modulation inverters; RLC circuits; Resonance; Surge protection; Switches; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-7067-8
DOI :
10.1109/PESC.2001.954257
