Digital three-phase PWM signal

Details Digital three-phase PWM signal Digital three-phase PWM signal

1993-05-20

1994-05-03

Shoop, Jr., William M.

Electricity: motive power systems

Induction motor systems

Primary circuit control

318807, 388811, 368 41, 364480, H02P 540, H02M 542

Patent

active

053090799

ABSTRACT:
A clock signal is applied to an UP/DOWN counter, which counts up the clock signal from zero up to a predetermined value and then counts down from the predetermined value to zero, and thereby a triangular wave signal representing counted value is output therefrom; three threshold values which are different each other are selected between zero and the predetermined value in advance, and they are set in three digital comparators, respectively; in each digital comparator, the threshold value is compared with a level of the triangular wave signal, and when the threshold value is larger than the level of the triangular wave signal, a high level signal is output from each digital comparator, the high level signal is delayed by a predetermined delay time and three-phase PWM signal is generated.

REFERENCES:
patent: 4757241 (1988-07-01), Young
patent: 4767976 (1988-09-01), Mutoh et al.
patent: 4878163 (1989-10-01), Yamato et al.
patent: 4994950 (1991-02-01), Gritter
patent: 5023538 (1991-06-01), Mutoh et al.
patent: 5034874 (1991-07-01), Araki
patent: 5057989 (1991-10-01), Hirose et al.

Affiliated with

Also associated with

Rating

Digital three-phase PWM signal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital three-phase PWM signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital three-phase PWM signal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2117289