Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2007-10-03
2010-12-07
Benson, Walter (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S254100, C318S701000, C318S722000, C318S800000
Reexamination Certificate
active
07847511
ABSTRACT:
A cleaner that can have the sufficient capability of collecting pollutant particles by a battery voltage as well as a AC voltage. The cleaner uses a switched reluctance motor to rotate a collecting fan. The switched reluctance motor is driven by a motor driver in one of a PWM mode or a pulse trigger mode. The motor driver drives the switched reluctance motor using one of the battery voltage and a DC voltage converted from the AC voltage, depending on whether the AC voltage is received. The PWM mode and the trigger mode are switched depending on whether the AC voltage is received. Accordingly, the cleaner makes it possible to reduce the time taken to clean up pollutant particles using the battery voltage to the time taken to clean up the pollutant particles using the AC voltage.
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English language Abstract of KR 10-2000-0011429 A.
English language Abstract of JP 2006-095337 A.
Ahn Kwang Woon
Kim Sang Young
Shin Hyoun Jeong
Yoo Myung Keun
Benson Walter
Dinh Thai
LG Electronics Inc.
McKenna Long & Aldridge LLP
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