Title :
Flyback resonant charger for high repetition rate pseudospark pulse generator
Author :
Wang, Fei ; Kuthi, Andras ; Jiang, Chunqi ; Zhou, Qubo ; Gundersen, Martin
Author_Institution :
Dept. of Electr. Eng.-Electrophys., Univ. of Southern California, Los Angeles, CA
Abstract :
A compact resonant capacitor charging power supply, incorporating a flyback transformer and high power IGBT module is presented. The power supply is developed for rapidly charging a pulse forming network (PFN) which is then switched by a commercial pseudospark device. Rapid charging of the PFN enables the Pseudospark pulse generator to operate at the high repetition rate required for transient plasma ignition experiments. Based on flyback architecture, the output voltage of the charger can be controlled by adjusting the on-time of the IGBT. This eliminates the need for a precisely controlled DC power supply, reducing the size and cost significantly compared with the alternative forward resonant charging architecture. The flyback resonant power supply can charge a 21 nF PFN to 30 kV within 20 us. Operation is burst mode with maximum 100 pulses per burst at 4 kHz repetition rate
Keywords :
capacitor storage; ignition; insulated gate bipolar transistors; pulse generators; pulse transformers; resonant power convertors; voltage control; 21 nF; 30 kV; 4 kHz; DC power supply; PFN; compact resonant capacitor charging power supply; flyback transformer; forward resonant charging architecture; power IGBT module; pseudospark device; pulse forming network; pulse generator; rapid charging; transient plasma ignition; voltage control; Flyback transformers; Insulated gate bipolar transistors; Plasma applications; Plasma devices; Power capacitors; Power supplies; Pulse generation; Pulse transformers; Pulsed power supplies; Resonance;
Conference_Titel :
Power Modulator Symposium, 2004 and 2004 High-Voltage Workshop. Conference Record of the Twenty-Sixth International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-8586-1
DOI :
10.1109/MODSYM.2004.1433513
