Flexible voltage transient detector circuit

Details Flexible voltage transient detector circuit Flexible voltage transient detector circuit

1998-11-04

2000-02-15

Sherry, Michael J.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

361 86, 361111, H02H 320

Patent

active

060259817

ABSTRACT:
A flexible voltage transient detector circuit is disclosed. The detector circuit includes an initialization unit, a first comparator, and a second comparator. The output of the initialization unit decides the operational modes of an integrated circuit. When the power voltage suddenly falls below the lower reference voltage, the first comparator will give an output to reset the initialization unit and force the integrated circuit into the initialized mode. Once the power voltage rises back above the higher reference voltage, the second comparator will order the counting of the initialization unit to start. The integrated circuit remains in the initialized mode until the counting stops after a period of delay time which can be flexibly set as needed and then returns the normal situation. This circuit design prevents the unpredictable operation of the integrated circuit.

REFERENCES:
patent: 5822166 (1998-10-01), Massie

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