Power converter

Details Power converter Power converter

2006-06-20

2006-06-20

Masih, Karen (Department: 2837)

Electricity: motive power systems

Induction motor systems

Primary circuit control

C318S700000, C318S724000, C318S754000, C318S798000, C318S800000

Reexamination Certificate

active

07064515

ABSTRACT:
In a power converter, an overvoltage suppression function of low cost and high reliability is provided. The power converter has a power conversion circuit, when driving a motor, for converting power from a battery and supplying it to the motor and when the motor generates power, converting the generated power of the motor and supplying it to the battery for storage of electricity and a drive circuit for driving the power conversion circuit. The power conversion circuit includes a plurality of paired switching elements, in which one of each paired switching elements is arranged on an upper arm, and the other is arranged on a lower arm, and each pair corresponds to each phase of the motor. The drive circuit, when the voltage applied to the power conversion circuit is increased, turns on all the switching elements on one arm, turns off all the switching elements on the other arm, thereby short-circuits the output terminals of the motor.

REFERENCES:
patent: 5914582 (1999-06-01), Takamoto et al.
patent: 6020695 (2000-02-01), Kelly et al.
patent: 6091216 (2000-07-01), Takahashi et al.
patent: 08-023700 (1996-01-01), None
patent: 2002-017098 (2002-01-01), None

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