Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2007-08-28
2010-11-02
Benson, Walter (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S811000, C318S822000, C318S471000
Reexamination Certificate
active
07825621
ABSTRACT:
Provided is a motor controller and method of controlling a motor with an improved maximum junction temperature rating. In accordance with one aspect of the present invention, a motor is controlled by varying a common mode voltage duty ratio for a plurality of solid state switching devices in a power inverter, generating drive signals for the solid state switching devices based at least in part upon the common mode voltage duty ratio, and changing states of the solid state switching devices based upon the drive signals.
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Kerkman Russel J.
Wei Lixiang
Benson Walter
Dinh Thai
Fletcher Yoder LLP
Kuszewski Alexander R.
Miller John M.
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