Input surge protection for converter circuit

Details Input surge protection for converter circuit Input surge protection for converter circuit

1978-12-29

1981-03-03

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361 91, 361 18, 363 21, H02H 320

Patent

active

042544432

ABSTRACT:
A power converter circuit is disclosed utilizing pulse width modulation for power regulation. A rapid acting surge protection circuit for the power driving switch is operated from a string of zener diodes to disable the power switch. A base charge removal circuit is included for removing accumulated base charges on the driving transistor without the need for a bipolar driving signal for the power transistor.

REFERENCES:
patent: 3233120 (1966-02-01), Darke
patent: 3239718 (1966-03-01), Fegley
patent: 4063307 (1977-12-01), Stephens
patent: 4106070 (1978-08-01), Gordon et al.

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