Dynamic temperature compensating circuit for power transistor co

Details Dynamic temperature compensating circuit for power transistor co Dynamic temperature compensating circuit for power transistor co

1975-12-16

1977-04-12

Beha, Jr., William H.

Oscillators

Relaxation oscillators

331 70, 331113A, H02M 3335

Patent

active

040177807

ABSTRACT:
A dynamic temperature compensating circuit is disclosed for driving the bs of a first and a second transistor connected in the common-emitter configuration, having collector-emitter paths of the two transistors connected together in a current loop. The circuit employs diodes arranged in parallel in the base-emitter drive circuit of each transistor, to clamp the transistors on or off at appropriate times. The diodes and transistors are composed of the same type of semi-conductor material so that their respective forward bias potentials maintain equal magnitudes over a range of temperatures. The circuit has particular application in D.C.-A.C. and D.C.--D.C. converters.

REFERENCES:
patent: 3289105 (1966-11-01), Funfstuck
patent: 3629725 (1971-12-01), Chun
patent: 3769545 (1973-10-01), Crane

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