Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Delay controlled switch
Patent
1998-08-11
1999-09-21
Cunningham, Terry D.
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
059559101
ABSTRACT:
A programmable delay circuit employs a comparator to control an output driver. The comparator compares a ramp signal to an error control signal derived from an error amplifier or in the alternative to a disable signal. The output of the comparator is latched 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 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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Levin Gedaly
Sanzo Christopher J.
Schuellein George E.
Theroux Arthur R.
Cherry Semiconductor Corporation
Cunningham Terry D.
Englund Terry L.
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