GB1252543A - - Google Patents

Info

Publication number
GB1252543A
GB1252543A GB1252543DA GB1252543A GB 1252543 A GB1252543 A GB 1252543A GB 1252543D A GB1252543D A GB 1252543DA GB 1252543 A GB1252543 A GB 1252543A
Authority
GB
United Kingdom
Prior art keywords
voltage
capacitor
transistor
resistor
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
Other languages
English (en)
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 filed Critical
Publication of GB1252543A publication Critical patent/GB1252543A/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
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/10—Commutator motors, e.g. repulsion motors
    • H02P25/14—Universal motors
    • H02P25/145—Universal motors whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value, speed feedback
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/907—Specific control circuit element or device
    • Y10S388/917—Thyristor or scr
    • Y10S388/918—Trigger by unijunction transistor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/923—Specific feedback condition or device
    • Y10S388/93—Load or torque

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)
GB1252543D 1969-04-09 1970-04-09 Expired GB1252543A (en, 2012)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81459069A 1969-04-09 1969-04-09

Publications (1)

Publication Number Publication Date
GB1252543A true GB1252543A (en, 2012) 1971-11-03

Family

ID=25215498

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1252543D Expired GB1252543A (en, 2012) 1969-04-09 1970-04-09

Country Status (2)

Country Link
US (1) US3586947A (en, 2012)
GB (1) GB1252543A (en, 2012)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710213A (en) * 1971-02-22 1973-01-09 Cutler Hammer Inc Pulse rate control motor speed control system with feedback
US3737748A (en) * 1971-11-03 1973-06-05 Sarns Inc Motor speed control circuit with unijunction transistor line voltage compensation
US3870936A (en) * 1972-05-25 1975-03-11 Hurletron Inc Digital motor control system for web registration
JPS535717A (en) * 1976-07-05 1978-01-19 Yamamoto Electric Ind Co Ltd Speed control device for electric motor
US4274037A (en) * 1978-06-16 1981-06-16 Yamamoto Electric Industrial Co., Ltd. Motor speed control system
US4638226A (en) * 1985-02-07 1987-01-20 Eaton Corporation Speed control system with feedback and soft-start
US9160224B2 (en) 2009-11-25 2015-10-13 Lutron Electronics Co., Inc. Load control device for high-efficiency loads
US11870334B2 (en) 2009-11-25 2024-01-09 Lutron Technology Company Llc Load control device for high-efficiency loads
US8957662B2 (en) 2009-11-25 2015-02-17 Lutron Electronics Co., Inc. Load control device for high-efficiency loads

Also Published As

Publication number Publication date
US3586947A (en) 1971-06-22

Similar Documents

Publication Publication Date Title
GB960992A (en) Series motor control
GB1412852A (en) Alternating current power supply circuit
GB1252543A (en, 2012)
GB1054058A (en, 2012)
GB1152863A (en) Method and device for Voltage Regulation
GB1255225A (en) A control circuit for an alternating current motor
GB1078954A (en) Arc power supply
GB1187079A (en) Improvements in Electromagnetic Clutch Control.
GB1109200A (en) Speed control system for alternating current induction motors
GB1398184A (en) Sensing apparatus
GB1226083A (en, 2012)
US3541416A (en) Motor control system with bemf sampling only when armature is coasting
GB1400088A (en) Current control device
US3469177A (en) A.c. phase control system responsive to a sensed condition
GB1225475A (en, 2012)
GB1255040A (en) Speed and voltage controls for a.c. motors
GB1261442A (en) Speed control circuits for electric motors
GB1181646A (en) Speed Control System for a D.C. Electric Motor
GB1286989A (en) Improvements in or relating to variable speed controls
GB1180576A (en) AC Solid State Voltage Regulator
GB1090333A (en) Direct current voltage converter
GB1055496A (en) Voltage regulator systems
GB1204525A (en) Improvements in or relating to power control systems
SU416812A1 (en, 2012)
GB1158821A (en) A control circiut for use with an electro-deposition system

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee