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GB1552625A - Apparatus for controlling the speed of a motor - Google Patents

Apparatus for controlling the speed of a motor

Info

Publication number
GB1552625A
GB1552625A GB20200/75A GB2020075A GB1552625A GB 1552625 A GB1552625 A GB 1552625A GB 20200/75 A GB20200/75 A GB 20200/75A GB 2020075 A GB2020075 A GB 2020075A GB 1552625 A GB1552625 A GB 1552625A
Authority
GB
United Kingdom
Prior art keywords
controlling
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
GB20200/75A
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.)
Johnson and Starley Ltd
Original Assignee
Johnson and Starley 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 Johnson and Starley Ltd filed Critical Johnson and Starley Ltd
Priority to GB20200/75A priority Critical patent/GB1552625A/en
Priority to IT22819/76A priority patent/IT1059032B/en
Priority to DE19762620595 priority patent/DE2620595A1/en
Priority to FR7614153A priority patent/FR2311446A1/en
Publication of GB1552625A publication Critical patent/GB1552625A/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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/02—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1912—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can take more than two discrete values
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
GB20200/75A 1975-05-13 1975-05-13 Apparatus for controlling the speed of a motor Expired GB1552625A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB20200/75A GB1552625A (en) 1975-05-13 1975-05-13 Apparatus for controlling the speed of a motor
IT22819/76A IT1059032B (en) 1975-05-13 1976-04-29 APPARATUS TO CONTROL THE SPEED OF AN ENGINE
DE19762620595 DE2620595A1 (en) 1975-05-13 1976-05-10 DEVICE FOR REGULATING THE SPEED OF A MOTOR
FR7614153A FR2311446A1 (en) 1975-05-13 1976-05-11 ELECTRIC MOTOR ROTATION SPEED CONTROL UNIT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20200/75A GB1552625A (en) 1975-05-13 1975-05-13 Apparatus for controlling the speed of a motor

Publications (1)

Publication Number Publication Date
GB1552625A true GB1552625A (en) 1979-09-19

Family

ID=10142087

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20200/75A Expired GB1552625A (en) 1975-05-13 1975-05-13 Apparatus for controlling the speed of a motor

Country Status (4)

Country Link
DE (1) DE2620595A1 (en)
FR (1) FR2311446A1 (en)
GB (1) GB1552625A (en)
IT (1) IT1059032B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294167A (en) * 1994-10-14 1996-04-17 Telefunken Microelectron Power controller of an induction motor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2815404C2 (en) * 1978-04-10 1984-08-30 Danfoss A/S, Nordborg Step regulator for several power elements
FR2506387B1 (en) * 1981-05-25 1985-11-08 Peugeot Aciers Et Outillage CONTROL CIRCUIT FOR THE ELECTRIC MOTOR OF A FAN, ESPECIALLY FOR COOLING AN INTERNAL COMBUSTION ENGINE
FR2528653B1 (en) * 1982-06-09 1985-08-30 Airelec Ind ELECTRIC POWER REGULATION DEVICE WITH DISCONTINUOUS INSTANT ACTION FOR HEATING APPARATUS

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3437900A (en) * 1967-02-13 1969-04-08 U M C Ind Inc Static control system for alternating current motor employing analog to digital converter
US3710374A (en) * 1970-03-16 1973-01-09 Wester Instr Inc Dual-slope and analog-to-digital converter wherein two analog input signals are selectively integrated with respect to time

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294167A (en) * 1994-10-14 1996-04-17 Telefunken Microelectron Power controller of an induction motor
US5696432A (en) * 1994-10-14 1997-12-09 Temic Telefunken Microelectronic Gmbh Method of controlling the power of an induction motor
GB2294167B (en) * 1994-10-14 1998-09-23 Telefunken Microelectron A process for the power control of an induction motor

Also Published As

Publication number Publication date
FR2311446A1 (en) 1976-12-10
FR2311446B1 (en) 1980-08-29
DE2620595A1 (en) 1976-11-25
IT1059032B (en) 1982-05-31

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Legal Events

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