Transistor circuits for switching high voltages and currents...

Details Transistor circuits for switching high voltages and currents... Transistor circuits for switching high voltages and currents...

2006-07-04

2006-07-04

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Utilizing three or more electrode solid-state device

C327S328000, C327S404000

Reexamination Certificate

active

07071763

ABSTRACT:
A switching circuit is disclosed for switching high voltages and high currents, if necessary, without causing snapback or breakdown. The disclosed high voltage, high current switching circuit comprises a first set of series-connected transistors that includes a plurality of transistors to switch a high voltage without inducing snapback or breakdown; and a second set of series-connected transistors that includes one or more transistors to switch a high current. The first and second sets of series-connected transistors are connected in parallel. The gates of the second set of series-connected transistors are enabled to cause conduction through the second set of series-connected transistors. In addition, a voltage detector is connected to an output of the first and second sets of series-connected transistors. The output of the voltage detector is coupled to the enabling means.

REFERENCES:
patent: 4317055 (1982-02-01), Yoshida et al.
patent: 4692643 (1987-09-01), Tokunaga et al.
patent: 5530394 (1996-06-01), Blossfeld et al.
patent: 5748531 (1998-05-01), Choi
patent: 5963061 (1999-10-01), Briner

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