Title:
MOTOR CONTROLLER
Document Type and Number:
Japanese Patent JPS55136888
Kind Code:
A
Abstract:
An SCR motor speed control system having a capacitor for triggering the SCR into conduction is provided with circuitry for limiting the top speed of the motor by sensing the time of a predetermined proportion of a motor revolution to determine the motor speed. When the time is below a predetermined time interval, indicative of motor speed above a desired top speed limit, a path is closed to bypass the charging path of the capacitor.
Inventors:
CHIYAARUZU AARU OODAAMAN
JIYATSUKU BURAUN
JIYATSUKU BURAUN
Application Number:
JP1426080A
Publication Date:
October 25, 1980
Filing Date:
February 07, 1980
Export Citation:
Assignee:
SINGER CO
International Classes:
H02P7/295; (IPC1-7): H02P5/16