Circuit for driving a switching transistor

Details Circuit for driving a switching transistor Circuit for driving a switching transistor

1984-04-19

1984-11-06

Miller, Stanley D.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307253, 307280, H03K 1760, H03K 333

Patent

active

044814313

ABSTRACT:
A circuit for driving a switching transistor which includes a driving pulse transformer having a primary winding to which a switching pulse is applied, a secondary winding connected to the base and the emitter of the switching transistor to turn on the switching transistor by the switching pulse applied to the primary winding, and a third winding. The third winding is connected to the emitter or the collector of the switching transistor so that the current flowing through the switching transistor of the on-condition flows through the third winding and induces a current on the secondary winding which is inverse to a current induced on the secondary winding by the switching pulse applied to the primary winding. The base-storaged carrier is rapidly drawn out after lapse of the switching pulse so that power dissipation is considerably reduced and high speed switching operation can be effected.

REFERENCES:
patent: 3805094 (1974-04-01), Orlando
patent: 3852620 (1974-12-01), Milberger et al.
patent: 3983418 (1976-09-01), Wallace
patent: 3986052 (1976-10-01), Hunter
patent: 3999086 (1976-12-01), Ekelund
patent: 4453089 (1984-06-01), Shuey et al.

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