Motor-driving circuit and wire-bonding apparatus

Details Motor-driving circuit and wire-bonding apparatus Motor-driving circuit and wire-bonding apparatus

1991-11-15

1994-05-31

Shoop, Jr., William M.

Electricity: motive power systems

Switched reluctance motor commutation control

318138, 318439, 318685, H02K 702

Patent

active

053172426

ABSTRACT:
A motor-driving circuit is used for driving a motor which is of a type including a rotor whose rotating shaft has a permanent magnet used for generating magnetic flux, and an armature having three-phase windings wound around an iron core to form Y-connection windings. The motor-driving circuit includes a circuit for short-circuiting two of the three leads extending from the Y-connection windings, a rotational position detector for detecting a rotational position of the motor, and a control circuit for causing an exciting an exciting current to flow between the short-circuited leads and the remaining lead, in such a manner that the rotational position detected by the rotational position-detecting means is moved to a designated rotational position which is corresponding to an external input which is within a narrow angular range.

REFERENCES:
patent: 3599069 (1969-08-01), Welch
patent: 3937974 (1976-02-01), Lafuze
patent: 4340166 (1982-07-01), Bilane et al.
patent: 4364111 (1982-12-01), Jocz
patent: 4479078 (1984-10-01), Kidd et al.
patent: 4510422 (1985-04-01), Ogura
patent: 4565957 (1986-01-01), Gary et al.
patent: 4743825 (1988-05-01), Nashiki
patent: 4748385 (1988-05-01), Van Hout
patent: 4757241 (1988-07-01), Young
patent: 5144209 (1992-09-01), Ihgji et al.
Japanese Utility Model Publication (Kokoku) No. 58-24438; pp. 149-151; May 25, 1983.
Japanese Utility Model Publication (Kokoku) No. 1-24931; pp. 199-201; Jul. 27, 1989.

Affiliated with

Also associated with

Rating

Motor-driving circuit and wire-bonding apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Motor-driving circuit and wire-bonding apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor-driving circuit and wire-bonding apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1629995