Circuit for controlling at least one power-FET
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United States of America Patent
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-
Jul 24, 1984
Grant Date -
N/A
app pub date -
Dec 1, 1981
filing date -
Dec 4, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Circuit for controlling at least one power-FET, including a transformer having a primary and a secondary winding, a control input connected to the primary winding, a first terminal of the secondary winding connected to the gate electrode of the FET, at least one diode connected between the first terminal of the secondary winding and the gate electrode of the FET, a second terminal of the secondary winding connected to the source of the FET, a differential member connected between the control input and the primary winding, and a switch connected between the secondary winding and the gate electrode of the FET, the switch connecting the gate electrode of the FET to the first terminal of the secondary winding in the case of a given secondary signal of a first polarity, and the switch connecting the gate electrode of the FET to the source electrode of the FET in the case of a given secondary signal of a second polarity.
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