Brushless DC motor driving method and apparatus for it

Details Brushless DC motor driving method and apparatus for it Brushless DC motor driving method and apparatus for it

2006-09-05

2006-09-05

Leykin, Rita (Department: 2837)

Electricity: motive power systems

Switched reluctance motor commutation control

C318S132000, C318S434000, C318S599000

Reexamination Certificate

active

07102306

ABSTRACT:
A rectangular wave or a waveform similar to the rectangular wave is output with an conductive angle no less than 120° but no more than 150° during low-speed operation, but output a rectangular wave, a sine wave or a waveform similar to them with an conductive angle no less than 130° but under 180° by changing the frequency only while maintaining the PWM duty constant at high-speed operation, making it possible to realize high-efficiency and low-noise operation at low-speed operation, secure stable high speed, and prevent peak current of effective current because the current waveform also comes closer to sine wave.

REFERENCES:
patent: 5457374 (1995-10-01), Branecky et al.
patent: 6002226 (1999-12-01), Collier-Hallman et al.
patent: 6400107 (2002-06-01), Nakatani et al.
patent: 6875165 (2005-04-01), Dejuan et al.
patent: 07-087782 (1995-03-01), None
patent: 09-088837 (1997-03-01), None
patent: 09088837 (1997-03-01), None
patent: 09-285177 (1997-10-01), None
patent: 09285177 (1997-10-01), None
patent: 11-341860 (1999-12-01), None
patent: 11341860 (1999-12-01), None
patent: 2000-078880 (2000-03-01), None
patent: 2001-037281 (2001-02-01), None
patent: 2002-125387 (2002-04-01), None
patent: 2002-330599 (2002-11-01), None
International Search Report for PCT/JP2004/002958, dated Jun. 29, 2004.

Affiliated with

Also associated with

Rating

Brushless DC motor driving method and apparatus for it does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Brushless DC motor driving method and apparatus for it, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brushless DC motor driving method and apparatus for it will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3609469