Phase controller for motor

Details Phase controller for motor Phase controller for motor

1987-06-19

1989-01-03

Shoop, Jr., Willam M.

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318301, 360 102, 360 103, H02P 516

Patent

active

047959509

ABSTRACT:
There is disclosed a phase controller comprising: a motor; a rotation detector for converting a motor rotating condition into a speed signal and a phase signal; a speed comparison circuit for detecting a difference between the speed signal and a speed target value; a resettable phase signal generating circuit for generating a phase reference signal; a phase comparison circuit for detecting a phase difference between the phase signal and the phase reference signal and outputting a reset signal to the phase signal generating circuit according to the output of the speed comparison circuit; a synthesizing circuit for synthesizing the output of the speed comparison circuit and the output of the phase comparision circuit; and a motor driving circuit for driving the motor according to the output of the synthesizing circuit. By resetting the phase reference signal according to the motor phase, the phase control pulling-in time is reduced to improve response.

REFERENCES:
patent: 4243921 (1981-01-01), Tamura et al.
patent: 4254367 (1981-03-01), Sakamoto
patent: 4271382 (1981-06-01), Maeda et al.
patent: 4295080 (1981-10-01), Fujita et al.
patent: 4463390 (1984-07-01), Koga et al.
patent: 4484235 (1984-11-01), Yokobori et al.
patent: 4564794 (1986-01-01), Kilen et al.
patent: 4567409 (1986-01-01), Ogawa
patent: 4572995 (1986-02-01), Enami
patent: 4605884 (1986-08-01), Miyagi
patent: 4605885 (1986-08-01), Mitsuhashi
patent: 4647828 (1987-03-01), Wachi
Jap. Abs. #60-128879, Masakazu Hoshino, "Control Circuit", 7/9/85.
Jap. Abs. #54-7519, Tadashi Kojima, "Motor Speed Control Circuit", 1/20/79.

Affiliated with

Also associated with

Rating

Phase controller for 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 Phase controller for motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase controller for motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2170193