Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Utilizing three or more electrode solid-state device
Reexamination Certificate
2005-05-24
2005-05-24
Callahan, Timothy P. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Gating
Utilizing three or more electrode solid-state device
C327S112000, C327S502000
Reexamination Certificate
active
06897707
ABSTRACT:
The present invention provides a system, apparatus and methodology for semiconductor device gate control utilizing a gate driver circuit112having opposing current inhibiting elements130, 132capable of controlling current flow until a predetermined voltage level is obtained across the current inhibiting element opposing the current flow. A difference of an isolated input voltage level and the predetermined voltage level approximates a gate voltage potential employed to drive a gate input of a semiconductor device. This is accomplished, in one instance of the present invention, by employing Zener diodes in an opposing fashion to produce the gate voltage potential. Zener diode breakdown voltages provide the predetermined voltage levels necessary to properly control the gated semiconductor device during gate charge and discharge cycles.
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Amin & Turocy LLP
Callahan Timothy P.
Nguyen Hai L.
Northrop Grumman Corporation
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