Switching device and switched-type power supply using the same

Details Switching device and switched-type power supply using the same Switching device and switched-type power supply using the same

1980-06-02

1982-02-09

Shoop, William M.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

357 43, 307584, H02M 7537

Patent

active

043153070

ABSTRACT:
Signals to the base of a bipolar transistor and to the gate of a parallel - connected FET are timed to turn on the two transistors simultaneously and to turn off the bipolar transistor before the FET. The shorter switching time of the FET is combined with the low resistance of the bipolar transistor to provide a switch that is particularly useful in a switched-type power supply with increased switched frequency.

REFERENCES:
patent: 3408544 (1968-10-01), Teszner
patent: 3490027 (1970-01-01), Galetto et al.
patent: 3708699 (1973-01-01), Frei et al.
patent: 3740581 (1973-06-01), Pfiffner
patent: 4095252 (1978-06-01), Ochi

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