GB2017975A - Automatic limitation of motor current with speed - Google Patents

Automatic limitation of motor current with speed

Info

Publication number
GB2017975A
GB2017975A GB7911804A GB7911804A GB2017975A GB 2017975 A GB2017975 A GB 2017975A GB 7911804 A GB7911804 A GB 7911804A GB 7911804 A GB7911804 A GB 7911804A GB 2017975 A GB2017975 A GB 2017975A
Authority
GB
United Kingdom
Prior art keywords
voltage
circuit
servo
motor current
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.)
Granted
Application number
GB7911804A
Other versions
GB2017975B (en
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.)
Singer Co
Original Assignee
Singer Co
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 Singer Co filed Critical Singer Co
Publication of GB2017975A publication Critical patent/GB2017975A/en
Application granted granted Critical
Publication of GB2017975B publication Critical patent/GB2017975B/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
    • H02P7/288—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 variable impedance
    • H02P7/2885—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 variable impedance whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Landscapes

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

Abstract

A motor speed control system is disclosed having a current limiting circuit appended to the velocity servo, which circuit provides a failsafe capability. This is accomplished by computing for a specific motor the value of the servo voltage (Vs) as a function of the tachometer voltage (Vt) at the maximum desired motor current and providing a clamp for the servo voltage at that value. The clamps circuit (50) comprises resistors and an (ideal diode) circuit designed to produce a maximum voltage even in the tachometer is open circuited. <IMAGE>
GB7911804A 1978-04-04 1979-04-04 Automatic limitation of motor current with speed Expired GB2017975B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US89321378A 1978-04-04 1978-04-04

Publications (2)

Publication Number Publication Date
GB2017975A true GB2017975A (en) 1979-10-10
GB2017975B GB2017975B (en) 1982-09-02

Family

ID=25401209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7911804A Expired GB2017975B (en) 1978-04-04 1979-04-04 Automatic limitation of motor current with speed

Country Status (5)

Country Link
JP (1) JPS54144917A (en)
DE (1) DE2913454A1 (en)
FR (1) FR2422284A1 (en)
GB (1) GB2017975B (en)
IT (1) IT1111931B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490657A (en) * 1983-10-11 1984-12-25 Allen-Bradley Company Automatic torque taper circuit
GB2361325A (en) * 2000-04-14 2001-10-17 Gerber Scient Products Inc Velocity and voltage feedback to control a motor
CN103532468A (en) * 2013-10-24 2014-01-22 苏州贝克微电子有限公司 Motor control circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103546090A (en) * 2013-10-23 2014-01-29 苏州贝克微电子有限公司 Motor control circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490657A (en) * 1983-10-11 1984-12-25 Allen-Bradley Company Automatic torque taper circuit
GB2361325A (en) * 2000-04-14 2001-10-17 Gerber Scient Products Inc Velocity and voltage feedback to control a motor
GB2361325B (en) * 2000-04-14 2002-06-05 Gerber Scient Products Inc Method and apparatus for the improved control of motors and of motor-actuated work apparatus
CN103532468A (en) * 2013-10-24 2014-01-22 苏州贝克微电子有限公司 Motor control circuit

Also Published As

Publication number Publication date
JPS54144917A (en) 1979-11-12
GB2017975B (en) 1982-09-02
DE2913454A1 (en) 1979-10-18
IT7921598A0 (en) 1979-04-04
FR2422284A1 (en) 1979-11-02
IT1111931B (en) 1986-01-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee