Circuit for sensing the transistor current waveform
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United States of America Patent
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May 29, 1990
Grant Date -
N/A
app pub date -
Sep 13, 1989
filing date -
Sep 15, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A circuit for sensing the waveform of the current in a transistor, including a first transistor which is controlled on its base by a switching signal; a second transistor which is controlled on its base by a control signal which is inverted and delayed with respect to the switching signal, the collector of the first transistor being connected through a diode to the collector of the second transistor, the emitter of the first transistor and the emitter of the second transistor being connected to the ground; a third transistor connected with its base to the collector of the second transistor and with its emitter to the ground through a resistor, the third transistor being switched on when the second transistor is switched off and the first transistor is on.
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