SE7901341L - STEERING COUPLING FOR SELF-STARTING ELECTRIC ENGINE - Google Patents

STEERING COUPLING FOR SELF-STARTING ELECTRIC ENGINE

Info

Publication number
SE7901341L
SE7901341L SE7901341A SE7901341A SE7901341L SE 7901341 L SE7901341 L SE 7901341L SE 7901341 A SE7901341 A SE 7901341A SE 7901341 A SE7901341 A SE 7901341A SE 7901341 L SE7901341 L SE 7901341L
Authority
SE
Sweden
Prior art keywords
rotor
switching
initiated
self
stator
Prior art date
Application number
SE7901341A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE436460B (en
Inventor
H-K Pedersen
F Sorensen
J Hyldal
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 SE7901341L publication Critical patent/SE7901341L/en
Publication of SE436460B publication Critical patent/SE436460B/en

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. <IMAGE>
SE7901341A 1978-02-16 1979-02-15 POWER CONNECTION FOR SELF-STARTING ELECTRICAL ENGINE WITH A PERMANENT MAGNET ROTOR SE436460B (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 (2)

Publication Number Publication Date
SE7901341L true SE7901341L (en) 1979-08-17
SE436460B SE436460B (en) 1984-12-10

Family

ID=6032153

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7901341A SE436460B (en) 1978-02-16 1979-02-15 POWER CONNECTION FOR SELF-STARTING ELECTRICAL ENGINE WITH A PERMANENT MAGNET ROTOR

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
DK147219C (en) 1984-11-19
FR2417882B1 (en) 1984-01-06
DE2806595A1 (en) 1979-08-23
JPS6220789B2 (en) 1987-05-08
BR7900957A (en) 1979-09-25
GB2014810B (en) 1982-06-16
YU33879A (en) 1982-10-31
DK61379A (en) 1979-08-17
FR2417882A1 (en) 1979-09-14
ES477691A1 (en) 1979-08-01
SE436460B (en) 1984-12-10
IT1165627B (en) 1987-04-22
AT366856B (en) 1982-05-10
JPS54118514A (en) 1979-09-14
GB2014810A (en) 1979-08-30
DE2806595C2 (en) 1987-11-12
ATA29279A (en) 1981-09-15
IT7967333A0 (en) 1979-02-15
CA1157083A (en) 1983-11-15
DK147219B (en) 1984-05-14
YU42944B (en) 1989-02-28

Similar Documents

Publication Publication Date Title
ES2007816A6 (en) Multi-phase bipolar brushless D.C. motor
GB1419544A (en) Dc electric motors
ES472235A1 (en) Electronically commutated motors
SE8203100L (en) SELF-STARTING TWO-POOL SINGLE SYNCHRON ENGINE
SE7901341L (en) STEERING COUPLING FOR SELF-STARTING ELECTRIC ENGINE
GB786751A (en) Synchronous motor
GB1529834A (en) Brushless direct current motors
SE8205623L (en) RELUCTANCE
JPS5443513A (en) Rotor dc excitation pulse motor
JPS5323010A (en) Commutatorless motor
JPS52131110A (en) Rotor of synchronous motor
KR910014627A (en) Rotation Angle Switching Device
FR2380660A1 (en) SINGLE-PHASE STEP MOTOR, WITH MAIN AND AUXILIARY ROTORIC POLES AND WITH MAGNETIC CIRCUIT BETWEEN THE STATORIC POLAR TEETH
SU133089A1 (en) Electric drive
JPS54134313A (en) Pulse motor for electronic clock
JPS5367819A (en) Poled motor
JPS5518879A (en) Motor driving circuit
JPS5581298A (en) Underwater pump
US3358203A (en) Non-commutator motor, particularly variable d. c. or a. c. motors
SU1043798A1 (en) Electric motor with oscillating rotor
GB1081168A (en) Improvements in and relating to electric motors
JPS5323009A (en) Commutatorless motor
SU481108A2 (en) Adjustable Electromagnetic Clutch
JPS5326913A (en) Brushless motor
SU647455A2 (en) Electronic magneto

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 7901341-3

Effective date: 19920904

Format of ref document f/p: F