Relay actuator circuit and method

Details Relay actuator circuit and method Relay actuator circuit and method

2006-05-01

2010-10-19

Leja, Ronald W (Department: 2836)

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

Reexamination Certificate

active

07817400

ABSTRACT:
In some embodiments, an apparatus includes a power supply to generate a supply current; at least one optoisolator coupled to the power supply and responsive to the supply current to generate a charging current; a capacitor, coupled to the at least one optoisolator, to build up a charge in response to the charging current; and an actuating switch, coupled to the capacitor, to release the charge from the capacitor to generate a relay actuating current.

REFERENCES:
patent: 4360853 (1982-11-01), Welk
patent: 5699218 (1997-12-01), Kadah
patent: 7095267 (2006-08-01), Sato
patent: 2005/0280403 (2005-12-01), Sato
patent: 2006/0238946 (2006-10-01), Schreckenberger
Maloney et al., “Transmission Line Pulsing Techniques for Circuit Modeling of ESD Phenomena,” EOS/ESD Symposium, Sep. 1985, pp. 49-54.
Young, The New Penguin Dictionary of Electronics, 1979, pp. 440-443 (definition of “relay”).

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