Title:
DC-BRUSHLESS-MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/194837
Kind Code:
A1
Abstract:
This DC-brushless-motor control device, which supplies a current to a winding of a stator of a three-phase DC brushless motor for rotating a negative-pressure-generating fan, is provided with: a rectification unit for rectifying alternating current having a voltage of 300 volts or less; a voltage-boosting unit for boosting the voltage of the current rectified by the rectification unit to at least 360 volts; a three-phase bridge inverter unit which supplies, to the winding of the three-phase DC brushless motor, the current having had the voltage thereof boosted by the voltage-boosting unit; and a control unit which, on the basis of the magnetic pole position detected by a magnetic-pole-position detection unit for detecting the magnetic pole position of a rotor of the three-phase DC brushless motor, controls the rotational frequency of the rotor by controlling the current-passage state of the three-phase bridge inverter unit.
Inventors:
NAKAMACHI NOBUO (JP)
HARA YASOYA (JP)
HARA YASOYA (JP)
Application Number:
PCT/JP2016/065782
Publication Date:
December 08, 2016
Filing Date:
May 27, 2016
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02P6/06; A47L9/28; H02P27/06
Foreign References:
| JP2002000524A | 2002-01-08 | |||
| JP2002199709A | 2002-07-12 | |||
| JPH06101893A | 1994-04-12 | |||
| JPH0658607A | 1994-03-04 | |||
| JP2013046539A | 2013-03-04 | |||
| JP2009201192A | 2009-09-03 | |||
| JP2006025574A | 2006-01-26 |
Other References:
See also references of EP 3306804A4
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