Current modulation motor controller

Details Current modulation motor controller Current modulation motor controller

1997-06-06

1998-03-31

Ro, Bentsu

Electricity: motive power systems

Induction motor systems

Primary circuit control

318779, 318781, 318809, H02P 736

Patent

active

057342482

ABSTRACT:
An apparatus for controlling the speed of an induction motor includes a first winding and a second winding. The first winding and second winding are adapted to be coupled to an AC source for supplying an AC input signal. A first switching device is coupled to the first winding and a second switching device is coupled to the second winding. Each of the switching devices is operative in a low impedance state enabling current to flow through the associated winding of each switching device and a high impedance state preventing significant current flow through the associated winding of each switching device. A controller switches each of the switching devices from the high impedance state to the low impedance state in a sequence for controlling the current in the windings, which induces a phase shift between the AC voltages across the windings.

REFERENCES:
patent: 4520303 (1985-05-01), Ward
patent: 5333474 (1994-08-01), Imai et al.
patent: 5483139 (1996-01-01), Welles, II

Affiliated with

Also associated with

Rating

Current modulation motor controller does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Current modulation motor controller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current modulation motor controller will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-54629