Polarity insensitive solid state switch

Details Polarity insensitive solid state switch Polarity insensitive solid state switch

2005-10-04

2005-10-04

Cunningham, Terry D. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Utilizing three or more electrode solid-state device

Reexamination Certificate

active

06952128

ABSTRACT:
A polarity insensitive solid state switch controlling a shunt load, wherein the switch includes first and second transistors connected in anti-parallel in series with the shunt load; and a longitudinal current sensor controlling the control electrodes of both transistors. The current sensor may be a current sensing resistor in series with a second load. Each transistor may be a bipolar transistor and the current sensing resistor may be connected between the base and emitter of each transistor.

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patent: 6426667 (2002-07-01), Goldman et al.
patent: 6680641 (2004-01-01), Orr
patent: 2005/0007214 (2005-01-01), Orr
patent: 0 967 736 (1999-12-01), None
patent: WO 99/40686 (1999-08-01), None
patent: WO 00/28660 (2000-05-01), None

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