Electric power conversion systems – Current conversion – Using semiconductor-type converter
Patent
1985-07-22
1987-10-06
Salce, Patrick R.
Electric power conversion systems
Current conversion
Using semiconductor-type converter
363 18, H02M 3335
Patent
active
046987410
ABSTRACT:
A high efficiency, low cost solid state power supply for gas discharge or other devices including a resonant oscillator having a high voltage transistor and a switching circuit connected to the high voltage transistor adapted to rapidly turn-off such transistor. The switching circuit including transistors interposed to interrupt the emitter current path of the high voltage transistor to force rapid cut-off thereof. The switching circuit coupled to the oscillator output tank capacitance which functions additionally as a differentiator to actuate the switching circuit.
REFERENCES:
patent: 3601682 (1971-08-01), Iwata
patent: 3697852 (1972-10-01), Gerbitz
patent: 4253136 (1981-02-01), Nanko
patent: 4361865 (1982-11-01), Shono
patent: 4443838 (1984-04-01), Yamada
patent: 4454574 (1984-06-01), Bush et al.
Farrow et al., "A 300 KHz Off Line Switching Supply Using a Unique Bi-Mos Switch Combination", Sep./Oct., 1980, Power Conversion International, pp. 20-27.
Chen and Walden, ". . . Emitter-Open Turn-OFF Scheme . . . ", 1981, IEEE, pp. 252-257 (Power Electronics Specialists Conference).
Salce Patrick R.
Sterrett J.
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