Electricity: motive power systems – Braking
Reexamination Certificate
2007-07-11
2009-11-10
Leykin, Rita (Department: 2837)
Electricity: motive power systems
Braking
C318S365000, C318S261000, C318S273000, C318S703000, C318S445000, C388S932000
Reexamination Certificate
active
07615947
ABSTRACT:
A motor driving device includes a brake mode control section for starting, when a brake instruction for a motor, braking of the motor in a reverse brake mode and then switching the reverse brake mode to a short brake mode; a cycle start detection section for receiving a rotation signal and detecting a start of a cycle of the rotation signal for each cycle; and a counter for performing, when the start of the cycle of the rotation signal is detected by the cycle start detection section, a count operation from an initial value. In the motor driving device, the brake mode control section detects that a value of the counter exceeds a threshold and performs switching from the reverse brake mode to the short brake mode with a delay from the detection.
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Leykin Rita
McDermott Will & Emery LLP
Panasonic Corporation
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