Control apparatus, dual chip inverter and single chip...

Details Control apparatus, dual chip inverter and single chip... Control apparatus, dual chip inverter and single chip...

2007-05-29

2007-05-29

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Switched reluctance motor commutation control

C318S448000, C318S722000

Reexamination Certificate

active

11057615

ABSTRACT:
A control apparatus and a semiconductor apparatus of AC motors capable of reducing torque ripple with a comparatively simple circuit corresponding to a high withstand voltage and capable of driving a motor at high efficiency even when the rotational speed or load has changed. The control apparatus detects first phase signals fixed in relative phase to induced voltages of the motor and current polarity signals, recognizes phase differences between them, generates second phase signals so as to make the phase differences approach zero to drive the motor at high efficiency, generates modulation wave signals having quasi-sinusoidal waveforms or trapezoidal waveforms on the basis of the second phase signals, compares the modulation wave signals with a carrier wave signal, and conducts PWM control on an inverter.

REFERENCES:
patent: 5280228 (1994-01-01), Kanouda et al.
patent: 5313150 (1994-05-01), Arakawa et al.
patent: 5327064 (1994-07-01), Arakawa et al.
patent: 5334923 (1994-08-01), Lorenz et al.
patent: 5428283 (1995-06-01), Kalman et al.
patent: 6118239 (2000-09-01), Kadah
patent: 6828752 (2004-12-01), Nakatsugawa et al.
patent: 9-215375 (1997-08-01), None
patent: 2001-45787 (2001-02-01), None
patent: 2001-251886 (2001-09-01), None
patent: 2004-120841 (2004-04-01), None

Affiliated with

Also associated with

Rating

Control apparatus, dual chip inverter and single chip... 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 apparatus, dual chip inverter and single chip..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control apparatus, dual chip inverter and single chip... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3800370