Switch with programmable delay

Details Switch with programmable delay Switch with programmable delay

1996-07-17

1998-11-24

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Delay controlled switch

327280, 327266, 327113, 327 27, 323266, 363 89, H03K 17296, G05F 140

Patent

active

058413138

ABSTRACT:
A programmable delay circuit employs a comparator to control an output driver. The comparator compares a ramp signal with a disable signal or an error control signal derived from an error amplifier. The comparator latches the output on until a reset signal is received. The reset signal is produced when the ramp signal is discharged below a predetermined level. The programmable delay circuit is useful in a secondary side post regulator to control a grounded totem pole driver. The totem pole driver in turn controls a switching device coupled to a voltage on a secondary winding.

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