Electronic control equipment

Details Electronic control equipment Electronic control equipment

1986-02-05

1987-09-29

Wong, Peter S.

Electric power conversion systems

Current conversion

With starting arrangement

323238, 323321, 323901, 323908, G05F 1569

Patent

active

046972293

ABSTRACT:
Electrical control apparatus including a power supply, a regulating element, a manually-operable control device which can be set to provide a preset output from the regulating element, and an automatic control circuit for modifying the operation of the control elements in the event of a power failure. The automatic control circuit is so arranged as to rapidly reduce the output to zero when the absolute supply voltage falls below a predetermined level, and to progressively raise the output to the preset level when the supply voltage is restored.

REFERENCES:
patent: 3823359 (1974-07-01), Koeller et al.
patent: 3959714 (1976-05-01), Mihelich
patent: 4180852 (1979-12-01), Koizumi et al.
patent: 4233557 (1980-11-01), Alberkrack
patent: 4272805 (1981-06-01), Iguchi et al.

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