Excitation control circuit for intermittently bypassing...

Details Excitation control circuit for intermittently bypassing... Excitation control circuit for intermittently bypassing...

2007-01-16

2007-01-16

Jackson, Stephen W. (Department: 2836)

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Including means for using, or compensating for, the induced...

Reexamination Certificate

active

10644010

ABSTRACT:
An excitation control circuit for suitably exciting a solenoid while current consumption and heating are effectively reduced. The control circuit has a driving circuit for driving a coil of a solenoid in response to a pulse signal supplied from an external device; a counter-electromotive force absorbing circuit, inserted in a path of a return current of the coil, for absorbing counter-electromotive force produced by the coil; and a return current circuit, connected in parallel to the counter-electromotive force absorbing circuit, for intermittently bypassing the return current. The return current circuit may have a field effect transistor switched on according to a signal for defining the timing of bypassing the return current, where the current path of the transistor is connected between a positive electrode and a negative electrode of the coil.

REFERENCES:
patent: 5811996 (1998-09-01), Oyabe et al.
patent: 5847533 (1998-12-01), Hakala et al.
patent: 5933312 (1999-08-01), Schuhbauer et al.
patent: 5953198 (1999-09-01), Murata et al.
patent: 6140717 (2000-10-01), Fischer et al.
patent: 59-45209 (1984-11-01), None
patent: 62-107527 (1987-07-01), None
patent: 4-130604 (1992-05-01), None
patent: 6-132116 (1994-05-01), None
patent: 6-132116 (1994-05-01), None
patent: 7-29730 (1995-01-01), None

Affiliated with

Also associated with

Rating

Excitation control circuit for intermittently bypassing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Excitation control circuit for intermittently bypassing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Excitation control circuit for intermittently bypassing... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3764028