Fast relay control circuit with reduced bounce and low power con

Details Fast relay control circuit with reduced bounce and low power con Fast relay control circuit with reduced bounce and low power con

1994-12-28

1997-05-20

Fleming, Fritz

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Systems for magnetizing, demagnetizing, or controlling the...

361155, H01H 4710

Patent

active

056318014

ABSTRACT:
A relay control circuit and method for closing a contact in response to an input signal received at a starting time. According to a preferred embodiment of the invention, a rapidly increasing electrical current is applied to the coil during an initial time period beginning at the starting time in response to the input signal, whereby a rapidly increasing force is applied to the contact to move the contact towards a closed position. The electrical current applied to the coil is decreased after the initial time period and maintained above a predetermined minimum magnitude until the contact is closed.

REFERENCES:
patent: 3265938 (1966-08-01), Daien
patent: 4777556 (1988-10-01), Imran
patent: 5128825 (1992-07-01), Hurley et al.

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