Title:
センサレスDCモータ及びセンサレスDCモータの起動方法
Document Type and Number:
Japanese Patent JP3586628
Kind Code:
B2
Abstract:
A method is provided for rapidly starting a brushless DC motor including an armature coil in a stator and field magnets in a rotor. The method is composed of supplying a starting current for the armature coil while the rotor is in a stationary state, measuring an induced voltage induced in the armature coil by rotation of the rotor caused by the starting current, and supplying a drive current for the armature coil in response to the induced voltage.
Inventors:
Norihiko Araki
Application Number:
JP2000261054A
Publication Date:
November 10, 2004
Filing Date:
August 30, 2000
Export Citation:
Assignee:
NEC Electronics Corporation
International Classes:
H02P6/06; H02P6/08; H02P6/18; H02P6/182; H02P6/21; (IPC1-7): H02P6/18
Domestic Patent References:
| JP7284293A | ||||
| JP4168995A |
Attorney, Agent or Firm:
Minoru Kudo