Power switching device

Details Power switching device Power switching device

2005-02-08

2005-02-08

Lam, Tuan T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

C327S320000, C327S322000, C327S324000

Reexamination Certificate

active

06853232

ABSTRACT:
A power switching device has a power switching transistor connected in series in a load circuit with an inductive load portion and a commutation circuit. The commutation circuit is connected in parallel with the gate-drain or base-collector path of the power transistor and has a first Zener diode, which determines the commutation clamping voltage for switching on the power switching transistor during commutation, and an oppositely biased normal diode that is connected in series with the first Zener diode. The commutation circuit further has control elements in order to reduce, during a short time, the commutation clamping voltage at the beginning of each commutation cycle or after an adjustable delay from the beginning of each commutation cycle.

REFERENCES:
patent: 4459498 (1984-07-01), Stengl et al.
patent: 5379178 (1995-01-01), Graf et al.
patent: 5561391 (1996-10-01), Wellnitz et al.
patent: 6087877 (2000-07-01), Gonda et al.
patent: 6091274 (2000-07-01), Preslar
patent: 6531908 (2003-03-01), Goeser et al.
patent: 20020079944 (2002-06-01), Sander
patent: 40 29 794 (1992-02-01), None
patent: 196 40 433 (1998-04-01), None
patent: 100 61 371 (2002-06-01), None

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