Circuit for driving a switching transistor
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United States of America Patent
Stats
-
Nov 6, 1984
Issued Date -
N/A
app pub date -
Apr 19, 1984
filing date -
Jan 9, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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