Warm-up time delay system for relay controlled electrical power

Details Warm-up time delay system for relay controlled electrical power Warm-up time delay system for relay controlled electrical power

1993-06-25

1996-01-16

Nguyen, Matthew V.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

361 28, 417 12, H02H 504, F04B 4900

Patent

active

054853630

ABSTRACT:
The status of a power supply is monitored to control operation of on-time and off-time counters respectively producing a power restart time count and measuring the duration of power interruptions. The restart time is computed as a function of the measured duration of the power interruptions by programmed time delay control and comparator components operative through a latch circuit to control relay operation of a power output circuit through which operation of electronic equipment is regulated to safely accommodate power disturbances with minimum shutdown time.

REFERENCES:
patent: 4021700 (1977-05-01), Ellis-Anwyl
patent: 4281358 (1981-07-01), Plouffe et al.
patent: 4502084 (1985-02-01), Hannett
patent: 4990057 (1991-02-01), Rollins
patent: 5444592 (1995-08-01), Shimizu et al.

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