Title:
LEAD ANGLE VALUE SETTING METHOD, MOTOR DRIVING CONTROL CIRCUIT, AND BRUSHLESS MOTOR
Document Type and Number:
WIPO Patent Application WO/2012/132231
Kind Code:
A1
Abstract:
A lead angle value setting method for a motor driving control circuit for current-driving motor coils at a current supply timing based on a stored lead angle value comprises: a step (S102) of rotating a rotor at a predetermined rotation number; a step (S110) of current-driving the coils by changing lead angle values during a rotation period at the predetermined rotation number; a step (S114) of calculating, for each of the lead angle values, an average value of an current amount during a current-driving period; a step (S120) of calculating, for each of the lead angle values, the total value of a plurality of continuous average values; and a step (S122) of obtaining the smallest total value among the total values and setting the lead angle value corresponding to the smallest total value as the stored lead angle value.
Inventors:
SATO DAISUKE
Application Number:
PCT/JP2012/001371
Publication Date:
October 04, 2012
Filing Date:
February 29, 2012
Export Citation:
Assignee:
PANASONIC CORP (JP)
SATO DAISUKE
SATO DAISUKE
International Classes:
H02P6/06; H02P6/08; H02P6/16; H02P6/28
Foreign References:
| JPH06284782A | 1994-10-07 | |||
| JP2003106618A | 2003-04-09 | |||
| JP2006515150A | 2006-05-18 | |||
| JPH10127086A | 1998-05-15 | |||
| JP2001008486A | 2001-01-12 | |||
| JPH06284782A | 1994-10-07 |
Other References:
See also references of EP 2629415A4
Attorney, Agent or Firm:
NAITO, Hiroki et al. (JP)
Hiroki Naito (JP)
Hiroki Naito (JP)
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Claims: