JPS55120391A - Dc commutatorless motor - Google Patents

Dc commutatorless motor

Info

Publication number
JPS55120391A
JPS55120391A JP2690079A JP2690079A JPS55120391A JP S55120391 A JPS55120391 A JP S55120391A JP 2690079 A JP2690079 A JP 2690079A JP 2690079 A JP2690079 A JP 2690079A JP S55120391 A JPS55120391 A JP S55120391A
Authority
JP
Japan
Prior art keywords
transistors
voltage
current flows
speed control
control transistor
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.)
Pending
Application number
JP2690079A
Other languages
Japanese (ja)
Inventor
Kinji Tanigoshi
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.)
Canon Inc
Canon Precision Inc
Original Assignee
Canon Inc
Canon Precision Inc
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 Canon Inc, Canon Precision Inc filed Critical Canon Inc
Priority to JP2690079A priority Critical patent/JPS55120391A/en
Publication of JPS55120391A publication Critical patent/JPS55120391A/en
Pending 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
    • H02P6/14—Electronic commutators

Landscapes

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

Abstract

PURPOSE:To reduce the power loss in transistors by a method wherein the transistors used in a motor drive circuit are operated in saturation mode at all times, and another speed control transistor is used for controlling the rotational speed of the motor. CONSTITUTION:When a power supply switch is turned on, a bias current flows in the inputs of Hall elements H1, H2 via a constant-voltage diode ZD, and corresponding to the position of the rotor, a Hall voltage is produced in the output terminal of either one of the Hall elements H1, H2. By this output voltage, transistors Q1-Q4 operate switching. In response to this, transistors Q5-Q8, which always operate in saturation mode, operate switching, a current flows sequentially in drive coils L1-L4, and the rotor rotates. The transistors Q5-Q8 are connected to a speed control transistor Q9, and the currents flowing in coils L1-L4 are controlled by varying the impedance between the collector and the emitter of the transistor Q9.
JP2690079A 1979-03-08 1979-03-08 Dc commutatorless motor Pending JPS55120391A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2690079A JPS55120391A (en) 1979-03-08 1979-03-08 Dc commutatorless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2690079A JPS55120391A (en) 1979-03-08 1979-03-08 Dc commutatorless motor

Publications (1)

Publication Number Publication Date
JPS55120391A true JPS55120391A (en) 1980-09-16

Family

ID=12206105

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2690079A Pending JPS55120391A (en) 1979-03-08 1979-03-08 Dc commutatorless motor

Country Status (1)

Country Link
JP (1) JPS55120391A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02227355A (en) * 1989-02-28 1990-09-10 Osaka Sekisui Haimu Koji Kk Turnabout device for traveling vehicle
KR100422439B1 (en) * 1997-01-15 2004-05-17 페어차일드코리아반도체 주식회사 Pd limiting circuit for motor driver ic

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49125814A (en) * 1973-03-09 1974-12-02

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49125814A (en) * 1973-03-09 1974-12-02

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02227355A (en) * 1989-02-28 1990-09-10 Osaka Sekisui Haimu Koji Kk Turnabout device for traveling vehicle
KR100422439B1 (en) * 1997-01-15 2004-05-17 페어차일드코리아반도체 주식회사 Pd limiting circuit for motor driver ic

Similar Documents

Publication Publication Date Title
GB1344299A (en) Dc motor arrangement controlled by rotor-position sensitive sensors
TW200511704A (en) A driving method and a driving circuit for a dc motor
SE8008489L (en) DEVICE FOR CONTROL OF A BRUSHLY DC DRIVE AND BRAKE CURRENT
US4225811A (en) Direct current motor with polyphase stator winding and electronic commutating device controlled by an angular position transmitter
GB1380995A (en) Electrical circuit for controlling a commutatorless direct-current electrical motor
JPS55120387A (en) Motor
US4242624A (en) Direct current stepper motor with a permanent magnet rotor and electronic commutation device
US3566227A (en) Switching circuit for operation and dynamic braking of a dc motor
JPS55120391A (en) Dc commutatorless motor
GB1131759A (en) Improvements in or relating to commutatorless d.c. motors
ATE20962T1 (en) MOTOR CONTROLLED VALVE.
US4484124A (en) Method of and apparatus for damping of stepper motor using non-active windings
GB1429942A (en) Dc motor with hall generators
SE8902160D0 (en) DEVICE FOR CONTROL OF A RELUCTION ENGINE
JPS57183281A (en) Controlling circuit for number of revolution
JPS55125093A (en) Controlling device for dc motor
JPS634286Y2 (en)
JPS6023930Y2 (en) solenoid drive circuit
KR900009481Y1 (en) Arrangement for speed regulation of brushless motor
KR870000677Y1 (en) Arrangement for starting servomotor
GB1021669A (en) Improvements in or relating to electric motors having brushless commutation
CN116526899A (en) Driving circuit and driving device
SU1543522A1 (en) Dc reversible electric drive
JPS56123792A (en) Motor driving circuit
JPS62155788A (en) Transistor motor