Title:
SPEED CONTROLLING SYSTEM FOR MOTOR
Document Type and Number:
Japanese Patent JPS5815476
Kind Code:
A
Abstract:
PURPOSE:To improve the characteristics in control and response of the titled motor by a method wherein the detection of the actual motor speed, which will be used as a reference for speed control, and the arithmetic operation of the difference between the command speed and the actual speed and the like are performed using a digital controlling device. CONSTITUTION:A counter 6 counts the speed pulse SP supplied within the prescribed period of time based on a timing command signal SS. A comparator 12 compares the output signal SC of a command signal setting device 14 with the output signal SD of the counter 6 and outputs a differential signal SA. An arithmetic operational unit 18 calculates a new controlled variable in accordance with the differential signal SA and supplies it to a latch 20. A saw-toothed wave generating circuit 28 forms a saw-toothed wave signal SN based on the digital control signal SB, a comparator 32 compares the saw-toothed wave signal SN with an analog speed signal SE, and supplies a driver driving signal SR to a driver 34.
Inventors:
YOSHIDA NORIYUKI
ASAI YOSHIMI
ASAI YOSHIMI
Application Number:
JP11256281A
Publication Date:
January 28, 1983
Filing Date:
July 18, 1981
Export Citation:
Assignee:
BROTHER IND LTD
International Classes:
H02P7/29; (IPC1-7): H02P5/16
Domestic Patent References:
| JPS5028596A | 1975-03-24 |
Attorney, Agent or Firm:
Kobe Norikazu