Motor control apparatus and motor control method

Details Motor control apparatus and motor control method Motor control apparatus and motor control method

2006-12-28

2009-10-13

Leykin, Rita (Department: 2837)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

C361S023000, C361S029000, C361S030000, C361S033000, C318S775000, C318S778000, C477S005000, C477S175000, C477S166000

Reexamination Certificate

active

07602594

ABSTRACT:
To provide a motor control apparatus, including a rotational number detecting means for detecting the rotational number of a motor; a current detecting means for detecting a motor current; a voltage detecting means for detecting an impressed voltage to be supplied to a motor; a temperature estimating means for obtaining a motor temperature from the rotational number of a motor, the motor current, and the impressed voltage; and a protection signal generating means for generating an operational signal in order to protect the motor when the obtained motor temperature exceeds a predetermined value.

REFERENCES:
patent: 5483139 (1996-01-01), Welles, II
patent: 6932738 (2005-08-01), Aoki et al.
patent: 7217223 (2007-05-01), Saeki et al.
patent: 5-137383 (1993-06-01), None

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