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GB917363A - Improvements relating to the control of electric motors - Google Patents

Improvements relating to the control of electric motors

Info

Publication number
GB917363A
GB917363A GB3937360A GB3937360A GB917363A GB 917363 A GB917363 A GB 917363A GB 3937360 A GB3937360 A GB 3937360A GB 3937360 A GB3937360 A GB 3937360A GB 917363 A GB917363 A GB 917363A
Authority
GB
United Kingdom
Prior art keywords
control
tapping
transistor
electric motors
improvements relating
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
GB3937360A
Inventor
Leslie Kearton Parker
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.)
PerkinElmer Ltd
Original Assignee
PerkinElmer 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 PerkinElmer Ltd filed Critical PerkinElmer Ltd
Priority to GB3937360A priority Critical patent/GB917363A/en
Publication of GB917363A publication Critical patent/GB917363A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

917,363. Control of D.C. motors. PERKINELMER Ltd. Aug. 25, 1961 [Nov. 16, 1960], No. 39373/60. Class 38 (3). A permanent magnet motor 1 has its speed controlled by a transistor emitter-follower 2 whose base is connected to the tapping-point 6 of potentiometer 5. The tapping 6 may be operated automatically in accordance with a predetermined programme, and a reversing switch 10 may be associated with the motor. In another arrangement, the base of the transistor 2 is connected to the emitter of a second transistor whose base is connected to the tapping 6, Fig. 2 (not shown).
GB3937360A 1960-11-16 1960-11-16 Improvements relating to the control of electric motors Expired GB917363A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3937360A GB917363A (en) 1960-11-16 1960-11-16 Improvements relating to the control of electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3937360A GB917363A (en) 1960-11-16 1960-11-16 Improvements relating to the control of electric motors

Publications (1)

Publication Number Publication Date
GB917363A true GB917363A (en) 1963-02-06

Family

ID=10409201

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3937360A Expired GB917363A (en) 1960-11-16 1960-11-16 Improvements relating to the control of electric motors

Country Status (1)

Country Link
GB (1) GB917363A (en)

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