Solenoid test device

Details Solenoid test device Solenoid test device

2006-10-17

2008-11-04

Nguyen, Vincent Q. (Department: 2831)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

C324S415000, C324S649000, C361S154000, C361S173000

Reexamination Certificate

active

07446541

ABSTRACT:
A solenoid test device includes a clock circuit, a control circuit, and an output port configured for coupling to two ends of a solenoid. The clock circuit generates a clock signal and sends it to the control circuit. The control circuit periodically and alternately couples one of the two ends of the solenoid to ground via the output port under the control of the clock signal. The solenoid test device is used to generate a periodic control signal to test service life and stability of solenoids.

REFERENCES:
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patent: 4746869 (1988-05-01), Schrag et al.
patent: 4932246 (1990-06-01), Deutsch et al.
patent: 5784245 (1998-07-01), Moraghan et al.
patent: 6147498 (2000-11-01), Sumiya et al.
patent: 2007/0279047 (2007-12-01), Schumacher
NA555, NE555, SA555, SE555 Precision Timers Data Sheet, SLF022F, Sep. 1973, Revised Jun. 2006, p. 10, Copyright 1973-2006, Texas Instruments, Incorporated.

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