Controller for a power switch and method of operation thereof

Details Controller for a power switch and method of operation thereof Controller for a power switch and method of operation thereof

1996-12-18

1998-10-13

Nguyen, Matthew V.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

H02M 3335

Patent

active

058221999

ABSTRACT:
A controller for a power switch having an isolated control terminal and coupled to a secondary winding of a drive transformer and a method of preventing spurious turn-on of the power switch. The controller includes: (1) a controllable switch, coupled between the secondary winding and the power switch, that alters a control voltage of the power switch in response to a characteristic of the secondary winding, and (2) a bias circuit coupled to the controllable switch and the power switch that provides a voltage differential between the controllable switch and the power switch to prevent spurious turn-on thereof.

REFERENCES:
patent: 3986052 (1976-10-01), Hunter
patent: 4178521 (1979-12-01), Speth
patent: 4605865 (1986-08-01), Yuzurihara
patent: 4728826 (1988-03-01), Einzinger et al.
patent: 4748351 (1988-05-01), Barzegar
patent: 4751408 (1988-06-01), Rambert
patent: 4763235 (1988-08-01), Morita
patent: 5404059 (1995-04-01), Loffler
patent: 5471376 (1995-11-01), Tsai et al.
patent: 5481219 (1996-01-01), Jacobs
patent: 5635867 (1997-06-01), Timm

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