A NOISE REDUCTION ARRANGEMENT RELATED TO A THREE-PHASE BRUSHLESS MOTOR

WIPO Patent Application WO/2010/113733

A3

An object of the present invention is to effectively reduce noise generated when driving a three-phase brushless motor. A noise reduction arrangement applied to a three-phase brushless motor is disclosed, wherein respective current loops, which are generated when two switching elements Q1 and Q2 related to U-phase are turned on or off in reversed phase with respect to each other, are opposed to each other in a direction of the normal to a board; respective current loops, which are generated when two switching elements Q3 and Q4 related to V- phase are turned on or off in reversed phase with respect to each other, are opposed to each other in a direction of the normal to the board; and respective current loops, which are generated when two switching elements Q5 and Q6 related to W-phase are turned on or off in reversed phase with respect to each other, are opposed to each other in a direction of the normal to the board.

IMAI TAKASHI (JP)
NAITO TAKAYUKI (JP)
MIZUTANI KOICHI (JP)
YAMANOUE KOUICHI (JP)
YAMAMOTO SHIGEKI (JP)

PCT/JP2010/055155

December 23, 2010

March 17, 2010

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TOYOTA MOTOR CO LTD (JP)
VISTEON GLOBAL TECH INC (US)
IMAI TAKASHI (JP)
NAITO TAKAYUKI (JP)
MIZUTANI KOICHI (JP)
YAMANOUE KOUICHI (JP)
YAMAMOTO SHIGEKI (JP)

H02M7/00; B60L3/00; H02M7/48; H02M7/5387; H02P6/06; H02P6/08; H03K17/16

US5777377A	1998-07-07
EP0987761A2	2000-03-22
US20060039127A1	2006-02-23

ITOH, Tadahiko (Yebisu Garden Place Tower20-3 Ebisu 4-chom, Shibuya-ku Tokyo 32, JP)

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