FR2340642A1 - Control circuit for commutatorless DC motor - sensing stages detect induced voltages in stator windings to activate ring counter producing phase signals - Google Patents

Control circuit for commutatorless DC motor - sensing stages detect induced voltages in stator windings to activate ring counter producing phase signals

Info

Publication number
FR2340642A1
FR2340642A1 FR7702242A FR7702242A FR2340642A1 FR 2340642 A1 FR2340642 A1 FR 2340642A1 FR 7702242 A FR7702242 A FR 7702242A FR 7702242 A FR7702242 A FR 7702242A FR 2340642 A1 FR2340642 A1 FR 2340642A1
Authority
FR
France
Prior art keywords
stator windings
motor
ring counter
phase signals
output
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.)
Granted
Application number
FR7702242A
Other languages
French (fr)
Other versions
FR2340642B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2340642A1 publication Critical patent/FR2340642A1/en
Application granted granted Critical
Publication of FR2340642B1 publication Critical patent/FR2340642B1/fr
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/14Electronic commutators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

A switching circuit is used to provide connection between the supply and three stator windings in a commutator less d.c. motor using induced voltage within the windings. The three stator windings are coupled to inputs (1, 2, 3) of three sensing stages (4, 5, 6) each with an output (T) that is '1' when the winding voltage is positive and 'o' when negative. A NAND gate (7) combines these sensing signals to generate an output when any 'T' output goes low. The sensing stage processes the winding voltage through filter and is compared with a stored peak value. A comparator generates an output at a predetermined level that is differentiated to generate the 'T' signal. The NAND gate (7) generates a grating signal over an OR gate (8) to change the state of a ring counter (10) to produce the phase signals (PH1, PH2, PH3) at specific intervals.
FR7702242A 1976-02-06 1977-01-27 Control circuit for commutatorless DC motor - sensing stages detect induced voltages in stator windings to activate ring counter producing phase signals Granted FR2340642A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2604638A DE2604638C3 (en) 1976-02-06 1976-02-06 Control circuit for a brushless DC motor

Publications (2)

Publication Number Publication Date
FR2340642A1 true FR2340642A1 (en) 1977-09-02
FR2340642B1 FR2340642B1 (en) 1982-04-16

Family

ID=5969221

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7702242A Granted FR2340642A1 (en) 1976-02-06 1977-01-27 Control circuit for commutatorless DC motor - sensing stages detect induced voltages in stator windings to activate ring counter producing phase signals

Country Status (2)

Country Link
DE (1) DE2604638C3 (en)
FR (1) FR2340642A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404331A1 (en) * 1977-09-27 1979-04-20 Siemens Ag CONTINUOUS CURRENT MOTOR WITHOUT COLLECTOR
EP0222604A2 (en) * 1985-11-08 1987-05-20 Maghemite Inc. Starter procedure for permanent magnet motor

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036908C2 (en) * 1980-09-30 1986-03-20 Siemens AG, 1000 Berlin und 8000 München Brushless electronic motor
US4746844A (en) * 1985-07-16 1988-05-24 Maghemite Inc. Control and operation of brushless continuous torque toroid motor
DE3602227A1 (en) * 1986-01-25 1987-07-30 Philips Patentverwaltung COMMUTATION CIRCUIT FOR A COLLECTORLESS DC MOTOR
US4678973A (en) * 1986-10-07 1987-07-07 General Motors Corporation Sensorless starting control for a brushless DC motor
SE454928B (en) * 1986-10-10 1988-06-06 Ems Electronic Motor Systems DRIVE DEVICE FOR A RELUCTION ENGINE
JP2875529B2 (en) * 1987-10-31 1999-03-31 ソニー株式会社 Drive device for sensorless brushless motor
DE10157900A1 (en) 2000-12-07 2002-08-08 Heidelberger Druckmasch Ag Sensorless commutation circuit for brushless DC motor, continuously compares voltages of star center points of motor star and virtual star in all phases, and outputs commutation signal to control commutation of DC motor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1068842A (en) * 1962-10-25 1967-05-17 Matsushita Electric Ind Co Ltd Synchronous motors
US3551765A (en) * 1967-03-03 1970-12-29 Victor Company Of Japan Commutatorless motor
DE2156389A1 (en) * 1970-11-14 1972-05-18 Canon Kk DC synchronous motor with control device
US3775648A (en) * 1971-08-04 1973-11-27 Garrett Corp Brushless motor control
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
FR2296299A1 (en) * 1974-12-23 1976-07-23 Ibm CONTINUOUS CURRENT MOTOR CONTROL CIRCUIT OPERATING AS A SYNCHRONOUS MOTOR

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1224824B (en) * 1963-08-02 1966-09-15 Siemens Ag Circuit arrangement for brushless direct current miniature motors
US3611081A (en) * 1970-04-06 1971-10-05 Sperry Rand Corp Counter emf commutated self-starting brushless d.c. motor
DE2115777B2 (en) * 1971-04-01 1973-04-12 Gebr. Bühler Nachfolger GmbH, 8500 Nürnberg COLLECTORLESS DC MOTOR
US3864615A (en) * 1971-09-13 1975-02-04 Royal Industries Electronic programmer for multi-phase motor
DD97108A1 (en) * 1972-04-11 1973-04-12

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1068842A (en) * 1962-10-25 1967-05-17 Matsushita Electric Ind Co Ltd Synchronous motors
US3551765A (en) * 1967-03-03 1970-12-29 Victor Company Of Japan Commutatorless motor
DE2156389A1 (en) * 1970-11-14 1972-05-18 Canon Kk DC synchronous motor with control device
US3775648A (en) * 1971-08-04 1973-11-27 Garrett Corp Brushless motor control
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
FR2296299A1 (en) * 1974-12-23 1976-07-23 Ibm CONTINUOUS CURRENT MOTOR CONTROL CIRCUIT OPERATING AS A SYNCHRONOUS MOTOR

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404331A1 (en) * 1977-09-27 1979-04-20 Siemens Ag CONTINUOUS CURRENT MOTOR WITHOUT COLLECTOR
EP0222604A2 (en) * 1985-11-08 1987-05-20 Maghemite Inc. Starter procedure for permanent magnet motor
EP0222604A3 (en) * 1985-11-08 1989-03-01 Maghemite Inc. Starter procedure for permanent magnet motor

Also Published As

Publication number Publication date
FR2340642B1 (en) 1982-04-16
DE2604638A1 (en) 1977-08-11
DE2604638C3 (en) 1982-03-04
DE2604638B2 (en) 1981-06-25

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Legal Events

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