Electricity: motive power systems – Synchronous motor systems – Field winding circuits
Patent
1993-06-11
1995-07-18
Wysocki, Jonathan
Electricity: motive power systems
Synchronous motor systems
Field winding circuits
318721, H02P 700
Patent
active
054344921
ABSTRACT:
A system controls a one-pole synchronous motor, with a magnetized rotor and a stator provided with two pairs of coils. The motor includes a floating common node to which are connected first coil terminals, the second terminal of each first coil of a coil pair is connected to a first supply terminal through a first respective switch, and the second terminal of each second coil of a coil pair is connected to a second supply terminal through a second respective switch. The control system includes a circuit operable for controlling switches in a stepping or self-switching mode, and at least one detection circuit using the voltage occurring at the floating common node so as to detect at least one operation condition of the motor.
REFERENCES:
patent: 4229682 (1980-10-01), Goddijn
patent: 4275343 (1981-06-01), Fulton et al.
patent: 4480218 (1984-10-01), Hair
patent: 4616166 (1986-10-01), Cooper et al.
patent: 4928049 (1990-05-01), Pietrobon et al.
patent: 5084662 (1992-01-01), Palaniappan et al.
patent: 5187419 (1993-02-01), DeLange
patent: 5235264 (1993-08-01), Kaneda et al.
patent: 5315225 (1994-05-01), Heinrich et al.
Guinet Michel
Hilaire Jean-Francois
Crouzet Automatismes
Wysocki Jonathan
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