Motor with electronic distributing configuration

Details Motor with electronic distributing configuration Motor with electronic distributing configuration

1998-07-27

1999-11-09

Masih, Karen

Electricity: motive power systems

Switched reluctance motor commutation control

318293, 318599, 318281, 318287, 318289, 361 34, H02K 2300

Patent

active

059821183

ABSTRACT:
First FET power transistors of first power amplifying parts and second FET power transistors of second power amplifying parts form current paths from a DC power source to three-phase windings. Three-phase first amplified current signals varying smoothly in rising and falling slopes are supplied to conduction control terminal sides of the first power amplifying parts. Three-phase second amplified current signals varying smoothly in rising and falling slopes are supplied to conduction control terminal sides of the second power amplifying parts. A switching control part performs simultaneous on-off switching of the conduction control terminal sides of the first power amplifying parts, thereby causing first FET power transistors of the first power amplifying parts to perform high-frequency on-off switching. As a result, three-phase drive currents to the windings vary smoothly, thereby reducing motor vibration. And also, power loss of the FET power transistors is reduced remarkably, thereby improving power efficiency of a motor.

REFERENCES:
patent: 4710686 (1987-12-01), Guzik
patent: 5018058 (1991-05-01), Ionescu et al.
patent: 5523660 (1996-06-01), Fujii
patent: 5561595 (1996-10-01), Smith
patent: 5585701 (1996-12-01), Kaida et al.
patent: 5610486 (1997-03-01), Li
patent: 5656897 (1997-08-01), Carobolante et al.

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