- 专利标题: Apparatus and method for driving rotary machine
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申请号: US11979250申请日: 2007-10-31
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公开(公告)号: US07893638B2公开(公告)日: 2011-02-22
- 发明人: Sadahiro Akama , Shuji Agatsuma , Nobumasa Ueda , Masahiro Kuroda , Kiyoshi Nagata , Masaya Ootake
- 申请人: Sadahiro Akama , Shuji Agatsuma , Nobumasa Ueda , Masahiro Kuroda , Kiyoshi Nagata , Masaya Ootake
- 申请人地址: JP Kariya
- 专利权人: DENSO CORPORATION
- 当前专利权人: DENSO CORPORATION
- 当前专利权人地址: JP Kariya
- 代理机构: Posz Law Group, PLC
- 优先权: JP2006-323947 20061130; JP2006-329430 20061206; JP2007-025840 20070205; JP2007-025841 20070205; JP2007-025842 20070205; JP2007-040958 20070221; JP2007-232989 20070907
- 主分类号: H02P23/12
- IPC分类号: H02P23/12
摘要:
A motor driving apparatus has a loss-of-synchronism monitoring circuit that monitors the rotation of a rotary machine such as a brushless DC motor to detect a sign of transition to a state of loss of synchronism. When the sign is detected, an energization control circuit temporarily stops driving of the rotary machine to bring it into a free running state, and thereafter carries out control so as to resume driving of the rotary machine. Further, the motor driving apparatus has an inverter and a drive control circuit that controls switching operation of the inverter based on rotation of the rotary machine.
公开/授权文献
- US20080252242A1 Apparatus and method for driving rotary machine 公开/授权日:2008-10-16