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Title:
MOTOR CONTROLLER
Document Type and Number:
Japanese Patent JP2011151879
Kind Code:
A
Abstract:

To provide a motor drive circuit for reliably performing fail operation by protecting a switching element for short-circuiting at failure occurrence.

In a motor controller 1 for opening a power switch 8 at failure occurrence and performing a closing operation of the switching element 10 for short-circuiting, a closing operation of the switching element 10 for short-circuiting is performed with a delay after an opening operation of the power switch 8 at failure occurrence, and a motor M is subjected to magnetic field control from when at least the power switch 8 performs the opening operation to when the switching element 10 for short-circuiting performs the closing operation.


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Inventors:
KUBOTA TOMOO
Application Number:
JP2010008935A
Publication Date:
August 04, 2011
Filing Date:
January 19, 2010
Export Citation:
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Assignee:
KYB CO LTD
International Classes:
H02P3/12; H02P3/18
Domestic Patent References:
JP2004357412A2004-12-16
JPH0947055A1997-02-14
JPH08275570A1996-10-18
JPH11308704A1999-11-05
JPH08154390A1996-06-11
Attorney, Agent or Firm:
天野 泉
石川 憲