Electricity: motive power systems – Synchronous motor systems – Brushless motor closed-loop control
Reexamination Certificate
2009-06-08
2011-10-18
Benson, Walter (Department: 2837)
Electricity: motive power systems
Synchronous motor systems
Brushless motor closed-loop control
C318S400170, C318S400260, C318S505000
Reexamination Certificate
active
08040088
ABSTRACT:
A power inverter comprises a power module connected at least to a rotating electric machine, a gate drive circuit board which supplies switching power to the power module, and a rotating electric machine control circuit board which supplies a signal for controlling the waveform of the switching power to the gate drive circuit board. A noise reduction board is formed on a board different from the rotating electric machine control circuit board. The configuration of the noise reduction board is such that various signals for forming a signal for controlling the waveform of the switching power by means of the rotating electric machine control circuit board are inputted through the noise reduction board to the rotating electric machine control circuit board.
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Japanese Office Action dated Mar. 15, 2011 (Two (2) pages).
Fujimoto Takashi
Igarashi Hiroaki
Katayama Hiroshi
Tsuji Masashige
Yahata Koichi
Benson Walter
Crowell & Moring LLP
Dinh Thai
Hitachi , Ltd.
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