Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
2004-08-20
2008-03-11
Dinh, Tuan T. (Department: 2841)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S790000, C361S729000, C361S760000, C361S761000
Reexamination Certificate
active
07342799
ABSTRACT:
A motor driving system includes an AC power supply1, an AC reactor2, a power converter3and a motor4. A microsurge suppressor5is inserted on a power supply line from the power converter3to the motor4and the similar microsurge suppressor6is inserted on a power supply line from the AC reactor2to the power converter3. The microsurge suppressor5includes a multi-layer printed wiring board having two terminals connected to the power converter3and the motor 4 and a capacitor for bypassing a surge, and the terminal4on the side of the motor of the multi-layer printed wiring board is directly connected to a terminal of the motor4. The capacitor for bypassing a surge is connected between the terminal of the motor4and the end on the side of a second terminal of second wiring.
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patent: 6678138 (2004-01-01), Glaser et al.
patent: 2007/0167085 (2007-07-01), Lopez et al.
patent: 2002-58162 (2002-02-01), None
Alessandro F. Moreira, “High-Frequency Modeling for Cable and Induction Motor Overvoltage Studies in Long Cable Drives”, IEEE, vol. 38, No. 5, Sep./Oct. 2002.
Noboru Aoki, et al., Damping Circuit ot Suppress Motor Terminal Overvoltage and Ringing in PWM Inverter-FED AC Motor Drive Systems With Long Motor Leads, IEEE, vol. 35, No. 5, Sep./Oct. 1999.
Hiroshi Hasegawa, et al., “A Three-Phase Voltage-Source PWM Inverter System Characterized by Sinusoidal Output Voltage With Neither Common-Mode Voltage nor Normal-Mode Voltage -Design and Performance of a Passive EMI Filter-”, 2002.
Bui Hung S
Keio University
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