Variable speed motor control

Details Variable speed motor control Variable speed motor control

1991-01-31

1992-06-30

Ro, Bentsu

Electricity: motive power systems

Constant motor current, load and/or torque control

Control of motor load or device driven

318268, 388819, H02P 729

Patent

active

051266423

ABSTRACT:
A motor control for a multi-phase compressor motor. The control responds to a speed control signal to cause the motor speed to track the speed control signal without changing the motor torque. This is accomplished by pulse width modulating motor speed signals in a sinusoidal manner to maintain the volts/hertz applied to the motor constant regardless of motor speed.

REFERENCES:
patent: 4407139 (1983-10-01), Ide et al.
patent: 4450519 (1984-07-01), Erdman
patent: 4467261 (1984-08-01), Lamaster
patent: 4471632 (1984-09-01), Nishi et al.
patent: 4506318 (1985-03-01), Nilssen
patent: 4514991 (1985-05-01), Zinsmeyer
patent: 4539823 (1985-09-01), Nishi et al.
patent: 4561260 (1985-12-01), Nishi et al.
patent: 4562524 (1985-12-01), Mutoh et al.
patent: 4580064 (1986-04-01), Varnoritsky
patent: 4587605 (1986-05-01), Kowyama et al.
patent: 4599549 (1986-07-01), Mutoh et al.
patent: 4604872 (1986-08-01), Miyazaki et al.
patent: 4611158 (1986-09-01), Nagase et al.
patent: 4614089 (1986-09-01), Dorsey
patent: 4615000 (1986-09-01), Fujii et al.
patent: 4617472 (1986-10-01), Slavik
patent: 4618810 (1986-10-01), Hagerman et al.
patent: 4621316 (1986-11-01), Uesugi
patent: 4628475 (1986-12-01), Azusawa et al.
patent: 4629959 (1986-12-01), Okuyama et al.
patent: 4633158 (1986-12-01), Hirata et al.
patent: 4633675 (1987-01-01), Sato
patent: 4636928 (1987-01-01), Deguchi et al.
patent: 4646534 (1987-03-01), Russell
patent: 4646535 (1987-03-01), Matsuoka et al.
patent: 4658596 (1987-04-01), Kuwahara
patent: 4662185 (1987-05-01), Kobayashi et al.
patent: 4667480 (1987-05-01), Bessler
patent: 4672524 (1987-06-01), Toriyama et al.
patent: 4677360 (1987-06-01), Garces
patent: 4680526 (1987-07-01), Okuyama et al.
patent: 4691269 (1987-09-01), Yamane et al.
patent: 4698744 (1987-10-01), Itani et al.
patent: 4706180 (1987-11-01), Wills
patent: 4716347 (1987-12-01), Fujimoto
patent: 4720777 (1988-01-01), Yokoi
patent: 4720981 (1988-01-01), Helt et al.
patent: 4720982 (1988-01-01), Shimizu et al.
patent: 4723201 (1988-02-01), Tanamachi et al.
patent: 4724680 (1988-02-01), Kawai
patent: 4736143 (1988-04-01), Nakamura et al.
patent: 4736148 (1988-04-01), Hirata
patent: 4736595 (1988-04-01), Kato
patent: 4748822 (1988-06-01), Erbs et al.
patent: 4758938 (1988-07-01), Kanazawa
patent: 4763059 (1988-08-01), Espelage et al.
patent: 4764713 (1988-08-01), D'Atre et al.
patent: 4766735 (1988-08-01), Gotou
patent: 4767976 (1988-08-01), Mutoh et al.
patent: 4772996 (1988-09-01), Hanei et al.
patent: 4777578 (1988-10-01), Jahns
patent: 4777579 (1988-10-01), Jahns et al.
patent: 4779183 (1988-10-01), Mutoh et al.
patent: 4800476 (1989-01-01), Harada et al.
patent: 4800478 (1989-01-01), Takahashi
patent: 4802077 (1989-01-01), Fujii et al.
patent: 4806839 (1989-02-01), Nagato et al.
patent: 4807103 (1989-02-01), Uesugi
patent: 4810943 (1989-03-01), Kawaguchi et al.
patent: 4833586 (1989-05-01), Inaka et al.
patent: 4856286 (1989-08-01), Sulfstede et al.
patent: 4879502 (1989-11-01), Endo et al.
patent: 4893479 (1990-01-01), Gillett et al.
patent: 5006045 (1991-04-01), Shimoda et al.
patent: 5023531 (1991-06-01), Altemose et al.

Affiliated with

Also associated with

Rating

Variable speed motor control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable speed motor control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable speed motor control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1866231