Electricity: motive power systems – Open-loop stepping motor control systems
Patent
1988-08-25
1989-11-21
Shoop, Jr., William M.
Electricity: motive power systems
Open-loop stepping motor control systems
318685, G02P 800
Patent
active
048825301
ABSTRACT:
In an all-phase de-energized state of the stepping motor, all motor windings having different phases are energized. After the all-phase de-energized state is detected, the motor windings are sequentially energized in accordance with predetermined phase energization patterns. Each of the energizations of the motor windings lasts for a given interval chosen to allow the stepping motor to generate a starting torque greater than a maximal load torque. After energizations of the motor windings corresponding to one cycle of the phase energization patterns are completed, durations of the energizations of the motor windings are gradually shortened to increase a rotational speed of the stepping motor.
REFERENCES:
patent: 3896363 (1975-07-01), Kinsel et al.
patent: 4285319 (1981-08-01), Hattori et al.
patent: 4300085 (1981-11-01), Monma et al.
patent: 4347821 (1982-09-01), Saito
patent: 4380985 (1983-04-01), Otsuka et al.
patent: 4541378 (1985-09-01), Kitamura
Asami Ken
Kabune Hideki
Kamiya Kohji
Miyake Kiyoshi
Saito Shigeru
Bergmann Saul M.
Nippondenso Co. Ltd.
Shoop Jr. William M.
Toyota Jidosha & Kabushiki Kaisha
LandOfFree
Stepping motor control 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 Stepping motor control apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stepping motor control apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1428199