Motor sensing circuit with transient voltage suppression

Details Motor sensing circuit with transient voltage suppression Motor sensing circuit with transient voltage suppression

2011-05-10

2011-05-10

Duda, Rina I (Department: 2837)

Electricity: motive power systems

Constant motor current, load and/or torque control

C361S023000, C361S091500

Reexamination Certificate

active

07940021

ABSTRACT:
A motor sensing circuit with transient voltage suppression includes a sensing unit and an impulse absorber. The sensing unit has an electrical switch generating a pulse sensing signal when switching and a signal output terminal electrically connecting to the electrical switch and outputting said pulse sensing signal. The impulse absorber has a first terminal connecting to the signal output terminal of the sensing unit and a second terminal being grounded. Consequently, the impulse absorber is able to provide a route for a transient current to be drained away, with the transient current being generated by an impulse inputted the motor sensing circuit through the signal output terminal.

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patent: 5867001 (1999-02-01), Lagerquist et al.
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patent: 6992524 (2006-01-01), Yang et al.
patent: 7408755 (2008-08-01), Ye et al.
patent: 2007/0121257 (2007-05-01), Maitra et al.

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