Base drive circuit for power transistors

Details Base drive circuit for power transistors Base drive circuit for power transistors

1982-09-27

1984-05-08

Goldberg, E. A.

Electrical transmission or interconnection systems

Plural load circuit systems

Control of current or power

307 17, 307 83, 323289, 363 21, 363 71, H02M 700, G05F 500

Patent

active

044477414

ABSTRACT:
A base drive circuit for power transistors uses a base drive transformer in a dual mode, as a voltage transformer when it is driven to switch on or off, and as a circuit transformer when the transistor is conducting. Particularly a single base drive is used to drive a plurality of base drive transformer, each base drive transformer acting in the dual mode. This isolates the power transistors from each other and avoids differences in switching characteristics of the power transistors from affecting each other.

REFERENCES:
patent: 3927365 (1975-12-01), Kodama et al.
patent: 4055790 (1977-10-01), Gerding et al.
patent: 4195333 (1980-03-01), Hedil
patent: 4313155 (1982-01-01), Bock et al.

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