Host based stepper motor phase controller and method therefor

Details Host based stepper motor phase controller and method therefor Host based stepper motor phase controller and method therefor

1999-06-11

2000-05-16

Ro, Bentsu

Electricity: motive power systems

Open-loop stepping motor control systems

318702, H02P 832

Patent

active

060641711

ABSTRACT:
The invention is a host-based stepper motor controller that reduces velocity overshoot and settling time. A typical embodiment of the invention will include a stepper motor, a carrier mechanically coupled to the stepper motor, a processor for controlling the stepper motor and a driver circuit allowing communication between the processor and the stepper motor. The processor control reduces velocity overshoot and settling time by guaranteeing that each move begins on the stepper motor phase that optimally reduces velocity overshoot and settling time. The processor generates an initial value indicative of the extent of a current move of a carrier mechanically coupled to a stepper motor. Next, the start phase of the current move is determined along with the direction of the next move. Based on the initial value, the current move start phase and the next move direction, the initial value is adjusted to a new value where the new value is indicative of a move that causes the next move to begin on the optimal start phase of the stepper motor predetermined to minimize velocity overshoot and settling time. The new value is communicated directly or after translation to the driver circuit causing the stepper motor to move the carrier the appropriately.

REFERENCES:
patent: 3812414 (1974-05-01), Abraham et al.
patent: 3813592 (1974-05-01), Ryberg
patent: 3838258 (1974-09-01), Logan
patent: 4130786 (1978-12-01), Jacques
patent: 4147967 (1979-04-01), Aiena
patent: 4258622 (1981-03-01), Estrabaud et al.
patent: 4268785 (1981-05-01), Svendsen
patent: 4310790 (1982-01-01), Mulet-Marquis
patent: 4313074 (1982-01-01), Nomura et al.
patent: 4328452 (1982-05-01), Ragen et al.
patent: 4387642 (1983-06-01), Bringhurst et al.
patent: 4477747 (1984-10-01), Palombo et al.
patent: 4496892 (1985-01-01), Bugatto, Jr.
patent: 4540924 (1985-09-01), Suzuki
patent: 4546299 (1985-10-01), Veale
patent: 4590495 (1986-05-01), Okamura
patent: 4600868 (1986-07-01), Bryant
patent: 4602197 (1986-07-01), Mattson
patent: 4648026 (1987-03-01), Petrick
patent: 4672283 (1987-06-01), Kobayashi
patent: 4691153 (1987-09-01), Nishimura
patent: 4691154 (1987-09-01), Sato et al.
patent: 4703242 (1987-10-01), Kumazawa et al.
patent: 4706008 (1987-11-01), Cronch et al.
patent: 4707649 (1987-11-01), Kanemura
patent: 4710691 (1987-12-01), Bergstrom et al.
patent: 4734847 (1988-03-01), Hunter
patent: 4869610 (1989-09-01), Nishizawa et al.
patent: 4988932 (1991-01-01), Markis et al.
patent: 5038088 (1991-08-01), Arends et al.
patent: 5227709 (1993-07-01), Gauthier et al.
patent: 5369428 (1994-11-01), Maze et al.
patent: 5433541 (1995-07-01), Hieda et al.
patent: 5446355 (1995-08-01), Janosky et al.
patent: 5767651 (1998-06-01), Boillat et al.

Affiliated with

Also associated with

Rating

Host based stepper motor phase controller and method therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Host based stepper motor phase controller and method therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Host based stepper motor phase controller and method therefor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-261163