05225759 is referenced by 29 patents and cites 8 patents.

Starting, accelerating and rated rotation of a rotor is carried out without any detector for the rotor position. A motor is controlled with an openloop circuit a short time in a starting area of low speed rotation, and thus the motor can be certainly started. In a rated rotation area, turning timing of the motor is precisely controlled by detecting counter-electromotive force of a stator coil.

Title
Starting and control method for brushless DC motor
Application Number
7/322844
Publication Number
5225759
Application Date
March 14, 1989
Publication Date
July 6, 1993
Inventor
Yosuke Kawate
Hikone
JP
Mineyo Endo
Oumihachiman
JP
Agent
Lowe Price LeBlanc & Becker
Assignee
Nippon Densan Corporation
JP
IPC
H02P 6/02
H02K 29/04
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