Control circuit for an electric motor

Details Control circuit for an electric motor Control circuit for an electric motor

1998-02-10

1999-12-14

Masih, Karen

Electricity: motive power systems

Switched reluctance motor commutation control

318434, 318138, 318801, 318802, 318798, 318439, 437 32, 327110, H02K 2300

Patent

active

06002223&

ABSTRACT:
A control circuit controls the power supply to an electric motor and, comprises a power transistor NM of the NMOS type and a power transistor PM of the PMOS type arranged between two supply terminals VCC and GND, their intermediate node forming an output coupled to a coil Ei of the motor. The well B of the transistor PM is coupled to supply terminal VCC via an isolation diode ID, which has its anode connected to supply terminal VCC and has its cathode connected to the well B. The isolation diode ID ensures that the coil Ei is not short-circuited by the parasitic drain-well diode D of the transistor PM in case of a sudden power failure.

REFERENCES:
patent: 4929884 (1990-05-01), Bird et al.
patent: 5377094 (1994-12-01), Willimas et al.
patent: 5508874 (1996-04-01), Williams et al.
patent: 5679587 (1997-10-01), Zambrano
patent: 5811996 (1998-09-01), Oyabe et al.
"Smart Power ICS", SGS-Thomson, ISBN 3-S40-60332-8.

Affiliated with

Also associated with

Rating

Control circuit for an electric motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-866590