ES477691A1 - Motor control circuits - Google Patents

Motor control circuits

Info

Publication number
ES477691A1
ES477691A1 ES477691A ES477691A ES477691A1 ES 477691 A1 ES477691 A1 ES 477691A1 ES 477691 A ES477691 A ES 477691A ES 477691 A ES477691 A ES 477691A ES 477691 A1 ES477691 A1 ES 477691A1
Authority
ES
Spain
Prior art keywords
rotor
switching
initiated
stator
circuit
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
ES477691A
Other languages
Spanish (es)
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.)
Danfoss AS
Original Assignee
Danfoss AS
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 Danfoss AS filed Critical Danfoss AS
Publication of ES477691A1 publication Critical patent/ES477691A1/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
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/20—Arrangements for starting
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/12—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using detecting coils using the machine windings as detecting coil

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Brushless Motors (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

In a brushless D.C. motor employing a permanent magnet rotor 1 and a two winding stator 2, 3 with electronic switching 4, 5 responsive to rotor position to improve efficiency, switching of the stator current is initiated in advance of the rotor reaching its neutral position so that the stator poles have more or less completed their change by the time the rotor reaches the neutral position. However, as, on starting, the rotor might therefore oscillate back and forth instead of rotating an override circuit 14 is included. When the rotor starts from a position between (in the desired direction of rotation) the point at which switching is initiated and the subsequent neutral axis 35, the override circuit 14 maintains the initial condition of the switching circuit for a predetermined period irrespective of the rotor sensor 35 output during that period.
ES477691A 1978-02-16 1979-02-14 Motor control circuits Expired ES477691A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2806595A DE2806595C2 (en) 1978-02-16 1978-02-16 Control circuit for a self-starting electric motor with a permanent magnet rotor

Publications (1)

Publication Number Publication Date
ES477691A1 true ES477691A1 (en) 1979-08-01

Family

ID=6032153

Family Applications (1)

Application Number Title Priority Date Filing Date
ES477691A Expired ES477691A1 (en) 1978-02-16 1979-02-14 Motor control circuits

Country Status (12)

Country Link
JP (1) JPS54118514A (en)
AT (1) AT366856B (en)
BR (1) BR7900957A (en)
CA (1) CA1157083A (en)
DE (1) DE2806595C2 (en)
DK (1) DK147219C (en)
ES (1) ES477691A1 (en)
FR (1) FR2417882A1 (en)
GB (1) GB2014810B (en)
IT (1) IT1165627B (en)
SE (1) SE436460B (en)
YU (1) YU42944B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1110986B (en) * 1979-01-15 1986-01-13 Montedison Spa CUMARINIC PIGMENTS
JPS5656162A (en) * 1979-10-09 1981-05-18 Matsushita Electric Ind Co Ltd Dc rotary motor
CH658348A5 (en) * 1979-11-30 1986-10-31 Papst Motoren Kg TWO-PULSE COLLECTORLESS DC MOTOR.
SE433550B (en) * 1982-10-01 1984-05-28 Electrolux Ab DEVICE FOR CONTROL OF THE START PROCESS OF A RELUCTION ENGINE
DE3435270A1 (en) * 1984-09-26 1986-04-03 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen METHOD FOR STARTING AN ELECTRONICALLY COMMUTED DC MOTOR
DE3521526A1 (en) * 1985-06-15 1986-12-18 Danfoss A/S, Nordborg ENGINE COMPRESSOR UNIT
US5157311A (en) * 1990-07-31 1992-10-20 Matsushita Electric Industrial Co., Ltd. Brushless motor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1187982A (en) * 1957-11-15 1959-09-17 Hatot Leon Ets Improvements applicable to electrical time devices
CH465053A (en) * 1966-11-11 1968-11-15 Golay Buchel & Cie Sa Installation comprising an electronically commutated polyphase motor
DE1763295A1 (en) * 1968-04-30 1972-01-05 Philips Nv Starting circuit for a brushless direct current motor
DE2419432C3 (en) * 1974-04-23 1985-05-09 Papst-Motoren GmbH & Co KG, 7742 St Georgen Brushless DC motor with a stator and a permanent magnet rotor
FR2266364A1 (en) * 1974-03-28 1975-10-24 Valroger Pierre De Self-starting synchronous motor control circuit - has flip-flops controlled at start by LF excitation circuit and then by monitor
DE2428718C3 (en) * 1974-06-14 1979-09-06 Teldix Gmbh, 6900 Heidelberg Brushless DC motor
DE2527041C3 (en) * 1975-06-18 1979-07-05 Danfoss A/S, Nordborg (Daenemark) Independently starting, brushless DC motor
DE2527057C3 (en) * 1975-06-18 1979-06-28 Danfoss A/S, Nordborg (Daenemark) Control circuit for a brushless DC motor
DE2556726B2 (en) * 1975-12-17 1977-12-29 Danfoss A/S, Nordborg (Dänemark) CONTROL CIRCUIT FOR A SELF-STARTING ELECTRIC MOTOR

Also Published As

Publication number Publication date
CA1157083A (en) 1983-11-15
JPS6220789B2 (en) 1987-05-08
IT1165627B (en) 1987-04-22
FR2417882B1 (en) 1984-01-06
DK147219C (en) 1984-11-19
AT366856B (en) 1982-05-10
YU33879A (en) 1982-10-31
YU42944B (en) 1989-02-28
DE2806595C2 (en) 1987-11-12
GB2014810B (en) 1982-06-16
GB2014810A (en) 1979-08-30
DK147219B (en) 1984-05-14
SE7901341L (en) 1979-08-17
JPS54118514A (en) 1979-09-14
SE436460B (en) 1984-12-10
DE2806595A1 (en) 1979-08-23
ATA29279A (en) 1981-09-15
BR7900957A (en) 1979-09-25
IT7967333A0 (en) 1979-02-15
DK61379A (en) 1979-08-17
FR2417882A1 (en) 1979-09-14

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