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Title:
MOTOR DRIVING CONTROLLER, AIR CONDITIONER, VENTILATION FAN, AND HEAT-PUMP WATER HEATER
Document Type and Number:
Japanese Patent JP2009055781
Kind Code:
A
Abstract:

To provide a motor driving controller capable of protecting a motor driving controller from the electromotive force of the motor generated by the rotation of a fan due to an outdoor wind, increasing the number of turns in the winding of the motor, and reducing a motor current.

The motor driving controller 110 for driving the motor 7 to rotate a fan has an inverter circuit 5 for inverting a DC voltage to an AC voltage to apply it to the motor 7, and a controlling means for controlling the operation of the motor 7 by controlling the inverter circuit 5. The controlling means switches a switching pattern in the inverter circuit 5 to pass a short current into the winding of the motor 7, when the electromotive force of the motor 7 is generated over a predetermined level by the rotation of the fan due to the outdoor wind.


Inventors:
YAMADA TOMOO
SAKANOBE KAZUNORI
SASAMOTO YOSUKE
ARISAWA KOICHI
TAKAHARA HIDEKI
HATAKEYAMA KAZUNORI
SHIMOMUGI TAKUYA
MATSUOKA ATSUSHI
YAMAZAKI TOGO
Application Number:
JP2008183710A
Publication Date:
March 12, 2009
Filing Date:
July 15, 2008
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H02P3/22; H02P3/18; H02P3/26; H02P21/36; H02P23/07; H02P27/06
Domestic Patent References:
JP2001263767A2001-09-26
JP2005124261A2005-05-12
JP2002101689A2002-04-05
JP2006054947A2006-02-23
JP2004007886A2004-01-08
JPH06335273A1994-12-02
JP2000345952A2000-12-12
JPH0960864A1997-03-04
JP2002310520A2002-10-23
JPH0638472A1994-02-10
JP2006217674A2006-08-17
JPS6260450A1987-03-17
JPH11128587A1999-05-18
Attorney, Agent or Firm:
小林 久夫
安島 清
佐々木 宗治
大村 昇
高梨 範夫
小河 卓