Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1993-06-02
1994-09-06
Shoop, Jr., William M.
Electricity: motive power systems
Induction motor systems
Primary circuit control
318727, H02P 528
Patent
active
053451600
ABSTRACT:
A variable frequency controller for an induction motor which includes a variable frequency source of periodic electrical signals, a sinusoidal signal generator for generating a sinusoidal signal from an output of the variable frequency source of signals, and a pulse width modulated signal producer for producing pulse width modulated signals modulated by the sinusoidal signal. A signal separator for separating the modulated sinusoidal signal into two trains of half waves with the half waves in one train 180 degrees out of phase with those in the other train is also provided. An inverter bridge is coupled to the coil of an induction motor and connected across a DC voltage. A driver drives the inverter bridge with the modulated sinusoidal half waves so as to produce a substantially sinusoidal output current through said motor.
REFERENCES:
patent: 4599549 (1986-07-01), Mutoh et al.
patent: 5021726 (1991-06-01), Reinhardt et al.
patent: 5081409 (1992-01-01), Goff
patent: 5119071 (1992-06-01), Takezawa et al.
patent: 5156005 (1992-10-01), Redlich et al.
patent: 5235264 (1993-08-01), Kaneda et al.
Masih Karen
Shoop Jr. William M.
LandOfFree
Variable frequency control system for single phase induction mot does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Variable frequency control system for single phase induction mot, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable frequency control system for single phase induction mot will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1331623