Electricity: motive power systems – Synchronous motor systems – Armature winding circuits
Reexamination Certificate
2006-06-07
2010-10-05
Leykin, Rita (Department: 2837)
Electricity: motive power systems
Synchronous motor systems
Armature winding circuits
C318S700000, C318S503000, C318S400010, C318S400020, C318S400040, C318S704000, C388S800000, C388S801000, C388S803000, C388S804000, C388S805000
Reexamination Certificate
active
07808201
ABSTRACT:
A power converter circuit for providing maximum utilization of a DC bus voltage to a two-phase Permanent Magnet Synchronous Motor (PMSM) is disclosed. The circuit includes first, second, and third nodes, each node being the junction between series connected high and low side switches connected across a DC bus; a PMSM having first and second windings and a star point at which the first and second windings are coupled to each other, the first winding having a terminal connected to the first node, the second winding having a terminal connected to the second node, and the star point being connected to the third node; and a controller for performing a three-point Pulse Width Modulation (PWM) coupled to a gate of each switch.
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Farjami & Farjami LLP
International Rectifier Corporation
Leykin Rita
McCloud Renata
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