Electricity: motive power systems – Generator-fed motor systems having generator control
Reexamination Certificate
2005-08-18
2009-06-02
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
Generator-fed motor systems having generator control
C318S802000, C318S148000, C318S153000
Reexamination Certificate
active
07541758
ABSTRACT:
V-phase upper-arm open phase detecting circuit outputs a permission signal to allow U-phase lower-arm MOSFET to be conductive when the V-phase voltage is higher than the positive electrode potential. In response to this permission signal, U-phase lower-arm driver circuit drives U-phase lower-arm MOSFET. V-phase lower-arm open phase detecting circuit outputs a permission signal to allow U-phase upper-arm MOSFET to be conductive when the V-phase voltage is lower than the negative electrode potential. In response to this permission signal, U-phase upper-arm driver circuit drives U-phase upper-arm MOSFET.Thereby, a MOS rectifying device capable of rectifying even when an open phase occurs, a driving method thereof, and a motor vehicle using thereof can be provided.
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Inaba Masamitsu
Iwamura Masahiro
Shirakawa Shinji
Crowell & Moring LLP
Hitachi , Ltd.
Paul Antony M
Ro Bentsu
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