Title:
DC MOTOR CONTROLLER
Document Type and Number:
Japanese Patent JPS61254088
Kind Code:
A
Abstract:
PURPOSE:To eliminate the overshoot of a speed and a vibrating torque even for a large step input by momentarily resetting an integrating operation of a speed amplifier at a suitable timing. CONSTITUTION:When a step signal is input as a speed command value, the output C of a comparator 13 becomes H level. An analog switch 25 is closed, an analog switch 26 is opened, an integrating condenser 23 is shortcircuited, and a speed amplifier 1 is momentarily reset. When a motor speed rises to approach a command value, the output C of the comparator 13 becomes L level. The switch 25 is opened, the switch 26 is closed, an integrating condenser 24 is shortcircuited, and the amplifier 1 is momentarily reset. Thus, the detrimental overdischarge of the condenser of the amplifier 1 is eliminated by suitably resetting operation.
Inventors:
AIZAWA TAKESHI
Application Number:
JP9462485A
Publication Date:
November 11, 1986
Filing Date:
May 02, 1985
Export Citation:
Assignee:
MEIDENSHA ELECTRIC MFG CO LTD
International Classes:
H02P1/16; H02P7/06; (IPC1-7): H02P1/16; H02P5/06
Attorney, Agent or Firm:
Fujiya Shiga