Power transistor drive circuit

Details Power transistor drive circuit Power transistor drive circuit

1987-02-09

1988-03-01

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307280, 307315, 307300, 307570, 323289, H03K 1760, H03K 333, G05F 156

Patent

active

047288175

ABSTRACT:
A transistor drive circuit includes a driver transistor and a power switching transistor connected in a Darlington configuration which receives turn-on and turn-off signals from a drive transformer. A capacitor is provided for connection between the driver transistor base and the switching transistor emitter during a turn-off period such that the voltage on the capacitor hastens turn-off of the driver transistor and the switching transistor. A diode connected between the emitter and the base of the driver transistor provides for continuing current flow from the capacitor following turn-off of the driver transistor but prior to turn-off of the switching transistor. After the switching transistor has turned off, the capacitor is recharged prior to the presence of a turn-on signal from the drive transformer.

REFERENCES:
patent: 3412316 (1968-11-01), Kernick
patent: 3697783 (1972-10-01), Seager
patent: 3715648 (1973-02-01), Kernick et al.
patent: 4239589 (1980-12-01), Brajder
patent: 4342076 (1982-07-01), Rosswurm et al.
patent: 4453089 (1984-06-01), Shuey et al.

Affiliated with

Also associated with

Rating

Power transistor drive circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Power transistor drive circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power transistor drive circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-999847