Power supply with switching means responsive to line voltage

Details Power supply with switching means responsive to line voltage Power supply with switching means responsive to line voltage

1988-10-06

1989-06-27

Salce, Patrick R.

Electricity: power supply or regulation systems

Input level responsive

363143, G05F 500

Patent

active

048433012

ABSTRACT:
A power supply circuit capable of operation with 115 V.A.C. (low range) or 230 V.A.C. (high range) line voltages, having a transformer with a primary winding arrangement which can be switched by a relay to accomodate either voltage range. A line voltage sensing circuit is coupled to a low voltage tap on the primary winding to sense the line voltage. When the line voltage is in the high range the voltage sensing circuit leaves the relay de-energized; and the sensing circuit energizes the relay to switch the primary winding to the appropriate configuration when the line voltage is in the low range.

REFERENCES:
patent: 4090234 (1978-05-01), Bierly
patent: 4654538 (1987-03-01), Lethellier
patent: 4665323 (1987-05-01), Russell et al.
patent: 4714870 (1987-12-01), Nilsson
patent: 4780805 (1988-10-01), Chewuk et al.

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