Device for eliminating inrush-current

Details Device for eliminating inrush-current Device for eliminating inrush-current

1984-06-01

1985-11-26

Eisenzopf, Reinhard J.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Impedance insertion

323908, H02H 902

Patent

active

045557411

ABSTRACT:
The present invention provides a device for eliminating inrush-current, comprising connecting a power switch, pair of diode in reverse parallel, a resistance, a rectifier, a time constant circuit and a thyristor in a manner such that an ac current is supplied to a load through the resistance for a period, determined by the time constant circuit, after switching-on of the power switch, and that the rated current is supplied to the load after lapse of the period by allowing the thyristor both to conduct and to short the resistance.

REFERENCES:
patent: 3222572 (1965-12-01), Powell, Jr.
patent: 3529210 (1970-09-01), Ito et al.
patent: 3781637 (1973-12-01), Potter

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