Title:
STEPPING MOTOR
Document Type and Number:
Japanese Patent JPS6198195
Kind Code:
A
Abstract:
PURPOSE:To eliminate the hysteresis phenomenon of a step motor by repeatedly rotating finely an output shaft at the stopping position as a center, and then stopping it. CONSTITUTION:When stopping, for example, by an exciting pattern A, the pattern A is output from a controller 3, and a step motor 1 is rotatably vibrated arbitrarily with the pattern A as a center continuously like B, A, D, A, B, A.... In other words, transistors 21, 22 22, 23 21, 22 24, 21 22, 23 ,... are sequentially turned ON to successively energize exciting coils 11, 12 12, 13 11, 12 14, 11 11, 12,..., the motor 1 is vibrated with the pattern A as a center, and stopped at the position A. As a result, the motor 1 is accurately stopped at the position of the pattern A.
Inventors:
TAKEUCHI KIYOSHI
Application Number:
JP21977484A
Publication Date:
May 16, 1986
Filing Date:
October 19, 1984
Export Citation:
Assignee:
TOKICO LTD
International Classes:
H02P8/22; H02P8/24; (IPC1-7): H02P8/00
Attorney, Agent or Firm:
Masatake Shiga