Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2007-09-18
2007-09-18
Leykin, Rita (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S767000, C318S807000
Reexamination Certificate
active
11071455
ABSTRACT:
An apparatus for controlling a speed of a fan motor (HIM (Hybrid Induction Motor)) of an air-conditioner extends a speed control range of a fan motor of an air-conditioner by controlling revolutions per minute (RPM) of the fan motor. In order to extend the speed control range of the HIM, an RPM of the HIM is controlled based on a pre-set duty ratio of a switching device electrically connected with the HIM.
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Han Seung-Do
Oh Seung-Suk
Shin Hyoun-Jeong
Leykin Rita
LG Electronics Inc.
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