Title:
METHOD OF CONTROLLING SENSORLESS BLDC MOTOR
Document Type and Number:
Japanese Patent JP2007028886
Kind Code:
A
Abstract:
To provide a method of controlling a sensorless blushless (BL) DC motor, capable of preventing nonuniform ZCP detection by changing a reference voltage inputted to a comparator and setting it as a new reference point, and by using the new reference point for detecting a zero-cross point (ZCP), and capable of reducing the current ripples for stable control, by correcting a phase conversion point corresponding to the ZCP detected by using the new reference point.
A preset prescribed value is added to a first reference voltage for generating a second reference voltage, and the second reference voltage is used for detecting the ZCP, and for controlling the drive of a sensorless concentrated wiring motor.
Inventors:
NOH HEUNG GYUN
Application Number:
JP2006145268A
Publication Date:
February 01, 2007
Filing Date:
May 25, 2006
Export Citation:
Assignee:
SAMSUNG KWANGJU ELECTRONICS CO
International Classes:
H02P6/16; H02P6/06; H02P6/08; H02P6/18; H02P6/182
Domestic Patent References:
| JP2001231285A | 2001-08-24 | |||
| JP2001298982A | 2001-10-26 | |||
| JPH0251389A | 1990-02-21 | |||
| JP2002010675A | 2002-01-11 | |||
| JP2004015968A | 2004-01-15 | |||
| JPH11318097A | 1999-11-16 |
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito
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