Electricity: motive power systems – Automatic and/or with time-delay means – Plural – diverse conditions or with time-delay means
Reexamination Certificate
2008-05-14
2010-12-28
Leykin, Rita (Department: 2837)
Electricity: motive power systems
Automatic and/or with time-delay means
Plural, diverse conditions or with time-delay means
C318S453000, C318S452000, C318S458000, C318S459000, C318S471000, C318S472000, C361S023000, C361S089000, C361S025000, C361S026000, C363S023000, C363S025000, C363S028000
Reexamination Certificate
active
07859213
ABSTRACT:
A control device for controlling a recovery from a locking of a motor includes: a switching unit which supplies a motor current from a current supplying unit to the motor; and a driving control unit which supplies a PWM control signal to the switching unit to control a driving of the switching unit. The driving control unit supplies the PWM control signal with a low duty ratio lower than a regular duty ratio to the switching unit when the locking of the motor is detected depending on a variation in temperature of the switching unit. The driving control unit supplies the PWM control signal with the regular duty ratio to the switching unit when a cancel of the locking of the motor is detected depending on a variation in inter-terminal voltage of the motor.
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Office Action dated Jun. 11, 2010, issued in counterpart German Application No. 10 2008 027 743.6-32.
Seo Byungeok
Serizawa Akira
Yabe Hiroo
Leykin Rita
Sughrue & Mion, PLLC
Yazaki -Corporation
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