Title:
METHOD FOR CONTROLLING ROTATION AND PHASE OF MOTOR
Document Type and Number:
Japanese Patent JPS61180591
Kind Code:
A
Abstract:
PURPOSE:To improve the lead-in of a phase control system by providing means for detecting the fact that a reference signal pulse is erroneously misled, and modulating a phase error obtained at present if misled. CONSTITUTION:Control signals of a rotating speed signal, a phase control signal and a reference signal are differentiated, applied through an OR circuit 10, and input to an interrupt terminal of a one-chip microcomputer 1. The microcomputer 1 identifies the signals to compare them at the speeds and the phases, adds the obtained error amount, then calculates to filter it, and outputs the result to a D/A converter 2. A drum motor 4 is driven through a drive circuit 3 by the output of the converter 2. The microcomputer 1 modulates the already presented phase error when a reference pulse is superposed on other pulse and is misled to obtain no phase error, thereby rapidly controlling the lead-in of the phase control.
Inventors:
TSUCHIYAMA YOSHIRO
Application Number:
JP2034385A
Publication Date:
August 13, 1986
Filing Date:
February 05, 1985
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H02P29/00; (IPC1-7): H02P5/00
Attorney, Agent or Firm:
Toshio Nakao