GB1144931A - Improvements relating to electric motor speed control - Google Patents

Improvements relating to electric motor speed control

Info

Publication number
GB1144931A
GB1144931A GB10569/66A GB1056966A GB1144931A GB 1144931 A GB1144931 A GB 1144931A GB 10569/66 A GB10569/66 A GB 10569/66A GB 1056966 A GB1056966 A GB 1056966A GB 1144931 A GB1144931 A GB 1144931A
Authority
GB
United Kingdom
Prior art keywords
speed
current
speed control
conduction
transistor
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
GB10569/66A
Inventor
John MERRETT
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 GB10569/66A priority Critical patent/GB1144931A/en
Priority to SE03119/67A priority patent/SE327753B/xx
Priority to DE19671588570 priority patent/DE1588570A1/en
Priority to FR98335A priority patent/FR1513940A/en
Publication of GB1144931A publication Critical patent/GB1144931A/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
    • 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
    • H02P7/282—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 field supply only
    • H02P7/2825—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 field supply only whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
    • 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
    • H02P7/293—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 using phase control

Abstract

1,144,931. Automatic control of speed. MULLARD Ltd. March 10, 1966, No. 10569/66. Heading G3R. In a system in which the speed of a D.C. motor 1 is kept constant by regulating its power supply in response to the back e.m.f. on line 7, compensation for variations in the field 2 current is provided by a control element 6 which alters the response of the system when the field current, monitored at 3, changes above a predetermined value. The speed control circuit is as described in Specification 1, 144, 762 and comprises a thyristor whose firing angle is determined by the conduction of a transistor 12. This is modified by the conduction of transistor 6, which depends upon the amount that the voltage tapped at 3 exceeds that of a Zener diode 5. Resistors 15, 17 and capacitors 16, 18 are for smoothing purposes. In an alternative embodiment the connection between transistors 6 and 12 includes a second Zener diode which conducts if the field current falls to a large extent, thereby causing the thyristor to be triggered late and so avoiding the large motor current which would otherwise occur.
GB10569/66A 1966-03-10 1966-03-10 Improvements relating to electric motor speed control Expired GB1144931A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB10569/66A GB1144931A (en) 1966-03-10 1966-03-10 Improvements relating to electric motor speed control
SE03119/67A SE327753B (en) 1966-03-10 1967-03-07
DE19671588570 DE1588570A1 (en) 1966-03-10 1967-03-07 Circuit arrangement for regulating the speed of an electric motor
FR98335A FR1513940A (en) 1966-03-10 1967-03-10 Circuit for controlling the rotational speed of an electric motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10569/66A GB1144931A (en) 1966-03-10 1966-03-10 Improvements relating to electric motor speed control

Publications (1)

Publication Number Publication Date
GB1144931A true GB1144931A (en) 1969-03-12

Family

ID=9970265

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10569/66A Expired GB1144931A (en) 1966-03-10 1966-03-10 Improvements relating to electric motor speed control

Country Status (4)

Country Link
DE (1) DE1588570A1 (en)
FR (1) FR1513940A (en)
GB (1) GB1144931A (en)
SE (1) SE327753B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2617131A1 (en) * 1975-04-26 1977-01-20 Papst Motoren Kg ARRANGEMENT FOR THE SPEED MONITORING OF A DC MOTOR
GB2304937A (en) * 1995-08-31 1997-03-26 Hewlett Packard Co Supply fluctuation compensation system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2617131A1 (en) * 1975-04-26 1977-01-20 Papst Motoren Kg ARRANGEMENT FOR THE SPEED MONITORING OF A DC MOTOR
GB2304937A (en) * 1995-08-31 1997-03-26 Hewlett Packard Co Supply fluctuation compensation system
GB2304937B (en) * 1995-08-31 1999-05-05 Hewlett Packard Co Active device control system

Also Published As

Publication number Publication date
FR1513940A (en) 1968-02-16
DE1588570A1 (en) 1970-06-18
SE327753B (en) 1970-08-31

Similar Documents

Publication Publication Date Title
GB1116809A (en) Non-contact ignition device
GB1255225A (en) A control circuit for an alternating current motor
GB1127685A (en) Electric power supply
GB1187079A (en) Improvements in Electromagnetic Clutch Control.
US3541416A (en) Motor control system with bemf sampling only when armature is coasting
GB1144931A (en) Improvements relating to electric motor speed control
ES344911A1 (en) A.c. phase control system responsive to a sensed condition
GB1231433A (en)
GB1181646A (en) Speed Control System for a D.C. Electric Motor
GB1207912A (en) Electric motor speed control
GB1047904A (en) Improvements in and relating to a stabilised unidirectional voltage supply
GB1040673A (en) Motor vehicle electrical supply systems
GB1169434A (en) A Speed Controlling Apparatus for Small D.C. Motor.
ES358215A1 (en) Battery charging system with a permanent magnet alternator and means for minimizing noise
GB1240319A (en) An electrical circuit arrangement for supplying electrical energy to a load
GB1048222A (en) Improvements in voltage regulators for generators
GB1187270A (en) Improvements relating to Temperature Control in Electrical Power-Supply Units
GB1019483A (en) Voltage regulators
GB1059331A (en) Improvements in charging circuits
GB1174488A (en) Improvements relating to Voltage Regulators.
GB1147972A (en) Voltage regulators for use with generators having field windings
GB1066572A (en) Improvements in Regulators for Generators
GB1199855A (en) Direct Current Arc Welding Device
GB914068A (en) Regulating systems for shunt-excited low voltage electric generators
GB1058160A (en) Improved voltage stabilizer circuit arrangements