Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – By periodic switching
Reexamination Certificate
2005-09-20
2005-09-20
Nguyen, Matthew V. (Department: 2838)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
By periodic switching
Reexamination Certificate
active
06946885
ABSTRACT:
A ripple gate drive circuit includes a plurality of transistors having their power terminals connected in series across an electrical potential. A plurality of control circuits, each associated with one of the transistors, is provided. Each control circuit is responsive to a control signal and an optical signal received from at least one other control circuit for controlling the conduction of electrical current through the power terminals of the associated transistor. The control circuits are responsive to a first state of the control circuit for causing each transistor in series to turn on sequentially and responsive to a second state of the control signal for causing each transistor in series to turn off sequentially.
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Bass Kevin C.
Murray Thomas W.
Rockot Joseph H.
Gottlieb Paul A.
Moody Julia C.
Nguyen Matthew V.
The United States of America as represented by the United States
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