June 29, 1999

A harmonic current attenuating device of a motor for attenuating a harmonic current generated from the motor by controlling the rotation speed by varying a sine wave voltage into a non-sinusoidal wave by phase-controlling the sine wave voltage, comprises a reactor having an E shape core, a coil wound to the E shape core and an I shape core.

10

June 29, 1999

08/994,267

December 19, 1997

318/629   318/245 336/234

H01F   27/24   (20060101)   H01F   27/00   (20060101)   H02P   6/00   (20060101)   H02P   13/00   (20060101)   H02P   5/00   (20060101)   H03H   7/01   (20060101)   H02M   5/257   (20060101)   H02J   3/01   (20060101)   H02M   1/12   (20060101)   H03H   7/00   (20060101)   H03H   7/09   (20060101)   H03H   7/18   (20060101)   H01F   37/00   (20060101)   H01F   27/34   (20060101)   H01F   27/26   (20060101)   H02K   23/66   (20060101)   H02P   7/06   (20060101)   H02M   5/02   (20060101)   H02P   7/18   (20060101)   H02P   7/295   (20060101)   H02P   9/00   (20060101)   A47L   9/28   (20060101)   H01F   17/04   (20060101)  

Aug 25, 1997 [KR] 97-40767 Aug 25, 1997 [KR] 97-40769 Aug 25, 1997 [KR] 97-40770 Aug 25, 1997 [KR] 97-40771 Aug 25, 1997 [KR] 97-40772 Aug 25, 1997 [KR] 97-40773 Aug 25, 1997 [KR] 97-40777 Aug 25, 1997 [KR] 97-40778 Aug 25, 1997 [KR] 97-40779

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