Relay device having holding current stabilizing and limiting...

Details Relay device having holding current stabilizing and limiting... Relay device having holding current stabilizing and limiting...

2007-08-28

2007-08-28

Sherry, Michael (Department: 2836)

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

C361S144000, C361S152000, C361S154000, C361S194000, C361S160000

Reexamination Certificate

active

11007630

ABSTRACT:
A relay device includes plural relay units, each having a coil for opening/closing a contact point, a base plate made of resin and having wiring metal pieces, and a control circuit mounted on the base plate for controlling current supply to the coil. The control circuit has a function of stabilizing the holding current irrespective of environmental variation. Thus, the holding current can be further reduced and heating and power consumption can be reduced without losing the function of keeping the contact point state.

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Sedra et al., Microelectronic Circuits, 1987, Holt, Rinehart and Winston, pp. 453-455.
The Illusttrated Dictionary of Electronics, 2001, McGraw-Hill, p. 243.

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