Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2008-12-12
2011-11-08
Benson, Walter (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S139000, C318S376000, C180S065100, C180S065210, C363S074000, C363S098000, C363S101000
Reexamination Certificate
active
08054031
ABSTRACT:
A converter device includes a converter circuit that includes a reactor connected to a primary side power supply, and a step-up feeding device that has a step-up switching element connected to the reactor and that boosts electric power of the primary side power supply by on/off switching the step-up switching element and outputting a stepped-up electric power as a secondary voltage; a converter control device that PWM-controls on/off switching of the step-up switching element so that the secondary voltage becomes equal to a secondary target voltage; and a temperature detecting device that detects a temperature of the reactor, wherein the converter control device limits PWM-controlled on/off switching of the step-up switching element for step-up operation when the temperature of the reactor increases to a first predetermined value or higher.
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patent: A-2003-324942 (2003-11-01), None
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Aisin A W Co. Ltd.
Benson Walter
Glass Erick
Oliff & Berridg,e PLC
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