Control of a triac for the starting of a motor

Details Control of a triac for the starting of a motor Control of a triac for the starting of a motor

2011-08-23

2011-08-23

Duda, Rina I (Department: 2837)

Electricity: motive power systems

Induction motor systems

Reversing

C318S778000

Reexamination Certificate

active

08004231

ABSTRACT:
A method and a circuit for controlling a triac intended to be series-connected with a resistive element of positive temperature coefficient or a capacitive element, and a winding for starting an asynchronous motor, for supply by an A.C. voltage, the present invention including the steps of: detecting a voltage representative of the voltage across the series connection of the element and of the triac; comparing this detected voltage with respect to a threshold; and blocking a turning back on of the triac when the threshold has been exceeded.

REFERENCES:
patent: 3978388 (1976-08-01), De Vries
patent: 4323834 (1982-04-01), Xuan et al.
patent: 4408607 (1983-10-01), Maurer
patent: 4622506 (1986-11-01), Shemanske et al.
patent: 4745347 (1988-05-01), Wrege et al.
patent: 5391971 (1995-02-01), Yamada et al.
patent: 5451853 (1995-09-01), Itoh
patent: 5635806 (1997-06-01), Wissmach et al.
patent: 5796599 (1998-08-01), Raonic et al.
patent: 6137275 (2000-10-01), Ravon
patent: 6320348 (2001-11-01), Kadah
patent: 6844698 (2005-01-01), Kwon
patent: 7514897 (2009-04-01), Gonthier
patent: 2005/0184699 (2005-08-01), Unno
French Search Report dated Aug. 9, 2006 from corresponding French Application No. 05/53570, filed Nov. 23, 2005.
Patent Abstracts of Japan, vol. 005, No. 078 (E-058), May 22, 1981 & JP 56 025389, Mar. 11, 1981.
Patent Abstracts of Japan, vol. 008, No. 123 (E-249), Jun. 8, 1984 & JP 59 035575, Feb. 27, 1984.

Affiliated with

Also associated with

Rating

Control of a triac for the starting of a motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control of a triac for the starting of a motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control of a triac for the starting of a motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2685022