Speed control circuit for a dc brushless motor

Details Speed control circuit for a dc brushless motor Speed control circuit for a dc brushless motor

2005-07-26

2005-07-26

Martin, David (Department: 2837)

Electricity: motive power systems

Induction motor systems

Secondary circuit control

C318S254100, C318S806000, C318S434000, C318S747000, C318S816000

Reexamination Certificate

active

06922038

ABSTRACT:
A speed control circuit for a dc brushless motor includes a switch circuit and a voltage-detection circuit. The voltage-detection circuit is actuated depending upon high or low voltage of power supply to thereby cause the switch circuit to output high or low operating voltage to a driver circuit of the motor in response to changes of the voltage of the power supply. The motor is adjusted and operated at desired speeds by a rated range of input voltages according to the high or low operating voltage.

REFERENCES:
patent: 3680655 (1972-08-01), Beyerlein et al.
patent: 4019606 (1977-04-01), Caputo et al.
patent: 4286198 (1981-08-01), de Valroger
patent: 4321515 (1982-03-01), Honda
patent: 4341984 (1982-07-01), Parker et al.
patent: 4896084 (1990-01-01), Maue et al.
patent: 5023527 (1991-06-01), Erdman et al.
patent: 5731674 (1998-03-01), Jeske
patent: 5929576 (1999-07-01), Yasohara et al.
patent: 6172476 (2001-01-01), Tolbert et al.
patent: 6236179 (2001-05-01), Lawler et al.
patent: 6304046 (2001-10-01), Lee et al.
patent: 6822419 (2004-11-01), Horng et al.

Affiliated with

Also associated with

Rating

Speed control circuit for a dc brushless 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 Speed control circuit for a dc brushless motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speed control circuit for a dc brushless motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3421843