Protective power foldback circuit for a power semiconductor

Details Protective power foldback circuit for a power semiconductor Protective power foldback circuit for a power semiconductor

1983-11-02

1985-07-23

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

361 18, H02H 904

Patent

active

045311730

ABSTRACT:
A protective power foldback circuit which protects a power semiconductor device from damage resulting from variations in load, supply voltage, and input drive power is disclosed. When the supply voltage exceeds a certain value, the drive power to the power device is reduced in an amount greater than that produced by the excess supply voltage thereby protecting the power device from the combined effects of load, supply voltage, and drive power.

REFERENCES:
patent: 3449680 (1969-06-01), Schilb et al.
patent: 3579089 (1971-05-01), Giess
patent: 3641451 (1972-02-01), Hollingsworth et al.
patent: 3852669 (1974-12-01), Bowman et al.
patent: 3886438 (1975-05-01), Bouman
patent: 4114108 (1978-09-01), Faulkenberry et al.
patent: 4355341 (1982-10-01), Kaplan
patent: 4378580 (1983-03-01), Stich

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