Electronic switch having programmable means to reduce noise coup

Details Electronic switch having programmable means to reduce noise coup Electronic switch having programmable means to reduce noise coup

1993-09-17

1996-10-08

Nelms, David C.

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Signal transmission integrity or spurious noise override

327384, 327391, 327108, H03K 1716, H03B 100

Patent

active

055635407

ABSTRACT:
Two controlled current gate drives are provided for driving parallel P and N channel pass devices, so that the rise time of the voltage at one gate of the pass devices overlaps with the fall time of the other to reduce capacitive signal coupling of the signal applied to an FET gate to the FET source and drain. Low-level current sources drive the gates of the pass devices with opposite polarities. A current mirror is used to control the currents provided by the gate drives to control the tradeoff between switching speed and switching noise coupling.

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