Charge conserving driver circuit for capacitive loads

Details Charge conserving driver circuit for capacitive loads Charge conserving driver circuit for capacitive loads

1995-06-28

1997-05-06

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

327333, 327427, 326 87, H03K 17687

Patent

active

056274874

ABSTRACT:
A CMOS driver device including an output stage having a first PMOS transistor and an NMOS transistor serially connected between a first voltage and ground and having a second PMOS transistor and the NMOS transistor serially connected between the second voltage and ground. The driver device further includes control logic for mutually exclusively controlling the first PMOS transistor and the second PMOS transistor such that during a first time period an output of the output stage is driven to the first voltage and that during a second subsequent time period the output is driven to the second voltage. The control logic further includes logic for mutually exclusively controlling the first and second PMOS transistors and the NMOS transistor such that prior to enabling one of the first and second PMOS transistors, the NMOS transistor is disabled.

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