GB1126185A - Improvements relating to electric motor speed control - Google Patents

Improvements relating to electric motor speed control

Info

Publication number
GB1126185A
GB1126185A GB2014866A GB2014866A GB1126185A GB 1126185 A GB1126185 A GB 1126185A GB 2014866 A GB2014866 A GB 2014866A GB 2014866 A GB2014866 A GB 2014866A GB 1126185 A GB1126185 A GB 1126185A
Authority
GB
United Kingdom
Prior art keywords
speed control
thyristor
electric motor
speed
motor speed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2014866A
Inventor
John Baxter Ruming
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Components Ltd
Original Assignee
Mullard Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mullard Ltd filed Critical Mullard Ltd
Priority to GB2014866A priority Critical patent/GB1126185A/en
Publication of GB1126185A publication Critical patent/GB1126185A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/292—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC
    • H02P7/295—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC of the kind having one thyristor or the like in series with the power supply and the motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

1,126,185. Automatic control of speed. MULLARD Ltd. May 6, 1966, No. 20148/66. Heading G3R. [Also in Division H2] The speed of a series motor 2, 3 supplied from an A. C. source 4 is controlled by variation of the firing angle of a thyratron or thyristor 1 in response to back e.m.f. which is increased to improve stability by energizing the field via a separate diode 12 during the whole of each half cycle that the thyristor conducts, thus increasing the residual magnetism. The thyristor is triggered when the forward voltage on diode 9 from speed control potentiometer 6 sufficiently exceeds the back e. m.f.
GB2014866A 1966-05-06 1966-05-06 Improvements relating to electric motor speed control Expired GB1126185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2014866A GB1126185A (en) 1966-05-06 1966-05-06 Improvements relating to electric motor speed control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2014866A GB1126185A (en) 1966-05-06 1966-05-06 Improvements relating to electric motor speed control

Publications (1)

Publication Number Publication Date
GB1126185A true GB1126185A (en) 1968-09-05

Family

ID=10141172

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2014866A Expired GB1126185A (en) 1966-05-06 1966-05-06 Improvements relating to electric motor speed control

Country Status (1)

Country Link
GB (1) GB1126185A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2045798A1 (en) * 1969-06-02 1971-03-05 Pruitt Dana

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2045798A1 (en) * 1969-06-02 1971-03-05 Pruitt Dana

Similar Documents

Publication Publication Date Title
GB1324339A (en) Direct current control circuit
GB1126185A (en) Improvements relating to electric motor speed control
GB1083153A (en) Improved system for controlling a motor
GB1190482A (en) Electric Sewing Machine.
GB1342849A (en) Pulse rate control motor speed control system with feedback
GB1122470A (en) Improvements relating to a motor speed control circuit arrangement
AU455217B2 (en) Series motor control circuit using thyristors energized by direct current
GB1084630A (en) Velocity control for a numerical control system
GB1286989A (en) Improvements in or relating to variable speed controls
BE776600A (en) PRINTER PROGRAMMING CONTROL SYSTEM
GB1084934A (en) Firing circuit for controlled rectifiers
GB1209728A (en) Solenoid control circuit
ES329060A1 (en) Improvements in the construction of control system for electric motors of continuous current. (Machine-translation by Google Translate, not legally binding)
GB1126186A (en) Improvements in electric motor speed control circuit arrangement
GB1181340A (en) Electric Motor Control Circuit
GB1152808A (en) Motor Speed Control System
GB1077869A (en) Improvements in or relating to a motor control system
GB1079525A (en) Speed control system for centrifuge motors and the like
GB1033285A (en) Circuit arrangement for spark erosion equipment
GB1361453A (en) Control circuit for thyristors
GB1148185A (en) Improvements in or relating to electronically switched control for direct-current motors
JPS53113977A (en) Acceleration and deceleration systems in numerical value control
GB1025774A (en) Improvements in or relating to control means for electrical apparatus
GB1398793A (en) Circuit arrangement for the speed control of electric motors
AT275676B (en) Speed control arrangement including the field weakening range of a collector motor fed from a direct current source via a thyristor direct current controller