Electric power conversion systems – Frequency conversion without intermediate conversion to d.c. – By semiconductor converter
Patent
1983-11-03
1985-08-27
Beha, Jr., William H.
Electric power conversion systems
Frequency conversion without intermediate conversion to d.c.
By semiconductor converter
363 10, 363164, H02M 527
Patent
active
045382204
ABSTRACT:
In an unrestricted frequency changer (UFC) the control pulses are generated by the intersection of a reference ramp of controllable slope and frequency with a succession of timing ramps characterizing the succession of phase voltages at the input of the UFC, whereby by increasing the slope and exceeding the peaks of the timing waves the sinusoidal shape of the output becomes trapezoidal and by increased slope increasingly close to a square-shaped wave, thus maximizing the output voltage at high frequency of operation.
REFERENCES:
patent: 3470447 (1969-09-01), Gyugyi et al.
patent: 3493838 (1970-02-01), Gyugyi et al.
Beha Jr. William H.
Lorin C. M.
Sterrett Jeffrey
Westinghouse Electric Corp.
LandOfFree
Adjustable frequency AC motor drive using an unrestricted freque does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adjustable frequency AC motor drive using an unrestricted freque, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable frequency AC motor drive using an unrestricted freque will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2004980