Stepping motor driver

Details Stepping motor driver Stepping motor driver

2005-02-01

2005-02-01

Ip, Paul (Department: 2837)

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

C318S696000

Reexamination Certificate

active

06850026

ABSTRACT:
The stepping motor driver comprises an angle computing element that receives rotor position detection signals from an encoder and calculates a detected angle representing the rotational angle of the rotor, and a lead angle controller that generates a corrected command angle based on the difference between a command angle given from outside and the detected angle. The lead angle controller calculates an angle deviation that is the difference between the command angle and the detected angle, compares the angle deviation with a predetermined value, outputs the command angle as the corrected command angle if the angle deviation is less than the predetermined value, and outputs a value obtained by adding an approximated lead angle to the detected angle as the corrected command angle if the angle deviation is greater than, or equal to, the predetermined value, and the phase of voltage applied to the motor is controlled according to the corrected command angle.

REFERENCES:
patent: 4426608 (1984-01-01), Larson et al.
patent: 4536691 (1985-08-01), Sakakibara
patent: 4818908 (1989-04-01), Tamae et al.
patent: 4949027 (1990-08-01), Baur
patent: 5729102 (1998-03-01), Gotou et al.
patent: 5969496 (1999-10-01), Yamada et al.
patent: 6097522 (2000-08-01), Maerki et al.
patent: 20020024828 (2002-02-01), Hayashi et al.
patent: 20030090262 (2003-05-01), Ho
patent: 20030178965 (2003-09-01), Kuwano et al.
patent: 20030198065 (2003-10-01), Hayashi et al.
Okumatsu, Yoshihiro, et al. Proc., No. 110, Industrial Application Branch, Japan Society of Electric Engineering, 2001 (p. 659, second volume).
Grimbleby, J.B. IEEE Proc.-Electr. Power Appl. vol. 142, No. 1, pp. 5-13, Jan. 1995.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3491567