Electricity: motive power systems – Automatic and/or with time-delay means – Speed or rate-of-movement
Reexamination Certificate
2007-06-28
2010-11-30
Benson, Walter (Department: 2837)
Electricity: motive power systems
Automatic and/or with time-delay means
Speed or rate-of-movement
C318S472000, C318S504000, C318S801000
Reexamination Certificate
active
07843156
ABSTRACT:
Methods and apparatus are provided for dynamic voltage control of electric motors. An inverter provides an output voltage to an electric motor based on a gate voltage. The method includes determining a speed of the electric motor and modifying the gate voltage based on the speed of the electric motor. The apparatus includes a gate drive circuit and a controller coupled to the gate drive circuit. The gate drive circuit provides a gate voltage to a switch network, and the switch network produces the output voltage in response to the gate voltage. The controller modifies the gate voltage based on a speed of the electric motor.
REFERENCES:
patent: 3801888 (1974-04-01), Faulkner
patent: 3969659 (1976-07-01), Thode
patent: 4607205 (1986-08-01), Kito et al.
patent: 5107151 (1992-04-01), Cambier
patent: 5994869 (1999-11-01), Becerra
patent: 2004/0066156 (2004-04-01), Makaran et al.
patent: 2005/0127865 (2005-06-01), Kiuchi et al.
patent: 2006/0142901 (2006-06-01), Frankel et al.
patent: 2006/0181239 (2006-08-01), Galli et al.
Rodman Keith A
Welchko Brian A
Benson Walter
Chan Kawing
GM Global Technology Operations Inc.
Ingrassia Fisher & Lorenz P.C.
LandOfFree
Method and apparatus for active voltage control of electric... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for active voltage control of electric..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for active voltage control of electric... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4251776