JPS56121396A - Driving circuit of dc motor - Google Patents

Driving circuit of dc motor

Info

Publication number
JPS56121396A
JPS56121396A JP2324580A JP2324580A JPS56121396A JP S56121396 A JPS56121396 A JP S56121396A JP 2324580 A JP2324580 A JP 2324580A JP 2324580 A JP2324580 A JP 2324580A JP S56121396 A JPS56121396 A JP S56121396A
Authority
JP
Japan
Prior art keywords
voltage
flowed
currents
transistors
motor
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
JP2324580A
Other languages
Japanese (ja)
Other versions
JPH0127676B2 (en
Inventor
Fumiyoshi Abe
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP2324580A priority Critical patent/JPS56121396A/en
Priority to AU67195/81A priority patent/AU544713B2/en
Priority to CA000370857A priority patent/CA1170712A/en
Priority to GB8104765A priority patent/GB2071440B/en
Priority to US06/235,655 priority patent/US4358720A/en
Priority to AT0076781A priority patent/AT376529B/en
Priority to FR8103562A priority patent/FR2476933B1/en
Priority to DE19813106856 priority patent/DE3106856A1/en
Priority to NL8100925A priority patent/NL8100925A/en
Publication of JPS56121396A publication Critical patent/JPS56121396A/en
Publication of JPH0127676B2 publication Critical patent/JPH0127676B2/ja
Granted 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
    • H02P6/08—Arrangements for controlling the speed or torque of a single motor
    • H02P6/085—Arrangements for controlling the speed or torque of a single motor in a bridge configuration

Landscapes

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

Abstract

PURPOSE:To obtain the driving circuit in which a power loss is suppressed as small as possible by a method wherein a drop voltage appearing in a constant current circuit connected in series to the DC motor and power source is fedback to the power source to be made a prescribed value. CONSTITUTION:Currents flowed through coils L1-L3 by ON-OFF controlling transistors Q1-Q6 according to outputs of a control circuit 12 fed based on output signals of Hall elements H1-H3, are flowed to a resistor R0 and generates voltages proportionate to the currents. The voltages are compared with a voltage Vi in an operational amplifier 11 and the comparison outputs are fed to transistors Q4-Q6 are turned ON, constant currents with the voltage V1 as a reference and of the magnitude corresponding to the voltage Vi are flowed to the coils L1-L3. The VCE of the transistors Q4-Q6 are detected by diodes D11-D13 and supplied to an operational amplifier 3, so that the VCE is made the reference.
JP2324580A 1980-02-25 1980-02-26 Driving circuit of dc motor Granted JPS56121396A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP2324580A JPS56121396A (en) 1980-02-26 1980-02-26 Driving circuit of dc motor
AU67195/81A AU544713B2 (en) 1980-02-25 1981-02-11 D.c. motor driving circuit
CA000370857A CA1170712A (en) 1980-02-25 1981-02-13 Dc motor driving circuit
GB8104765A GB2071440B (en) 1980-02-25 1981-02-16 Dc motor drive circuit arrangements
US06/235,655 US4358720A (en) 1980-02-25 1981-02-18 DC Motor driving circuit
AT0076781A AT376529B (en) 1980-02-25 1981-02-19 DC MOTOR CONTROL LEVEL FOR CONTROLLING THE BRAKING TORQUE OF A DC MOTOR
FR8103562A FR2476933B1 (en) 1980-02-25 1981-02-23 DRIVE CIRCUIT OF A BRUSHLESS DIRECT CURRENT MOTOR.
DE19813106856 DE3106856A1 (en) 1980-02-25 1981-02-24 DC MOTOR DRIVE CIRCUIT
NL8100925A NL8100925A (en) 1980-02-25 1981-02-25 SWITCH FOR CONTROLLING THE TORQUE SUPPLIED BY A DC MOTOR.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2324580A JPS56121396A (en) 1980-02-26 1980-02-26 Driving circuit of dc motor

Publications (2)

Publication Number Publication Date
JPS56121396A true JPS56121396A (en) 1981-09-24
JPH0127676B2 JPH0127676B2 (en) 1989-05-30

Family

ID=12105206

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2324580A Granted JPS56121396A (en) 1980-02-25 1980-02-26 Driving circuit of dc motor

Country Status (1)

Country Link
JP (1) JPS56121396A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4848941A (en) * 1971-10-25 1973-07-11
JPS4932624A (en) * 1972-07-21 1974-03-25

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4848941A (en) * 1971-10-25 1973-07-11
JPS4932624A (en) * 1972-07-21 1974-03-25

Also Published As

Publication number Publication date
JPH0127676B2 (en) 1989-05-30

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