Method and apparatus with active feedback for shifting the volta

Details Method and apparatus with active feedback for shifting the volta Method and apparatus with active feedback for shifting the volta

1995-12-11

1998-02-10

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Accelerating switching

326 17, 326 63, 326 68, 327333, H03K 1704

Patent

active

057173559

ABSTRACT:
In a method and apparatus for shifting the level of a signal a shifter receives a multi-logic state input signal and generates a multi-logic state output signal responsive to changes in logic state of input signal and whose voltage level is shifted with respect to the input signal. The logic low state of the output signal is shifted to a certain voltage level above ground. A first switching device sets the voltage level of the logic low state. A feedback circuit feeds a signal derived from the output signal back to the switching device to precondition the shifter so that the speed of the output signal transition from one state to another is accelerated.

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