JPS5780283A - Drive circuit for motor - Google Patents

Drive circuit for motor

Info

Publication number
JPS5780283A
JPS5780283A JP55155924A JP15592480A JPS5780283A JP S5780283 A JPS5780283 A JP S5780283A JP 55155924 A JP55155924 A JP 55155924A JP 15592480 A JP15592480 A JP 15592480A JP S5780283 A JPS5780283 A JP S5780283A
Authority
JP
Japan
Prior art keywords
motor
voltage
power supply
load
voltage source
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
JP55155924A
Other languages
Japanese (ja)
Other versions
JPS6323755B2 (en
Inventor
Isao Fukushima
Yoshinori Okada
Hideo Nishijima
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP55155924A priority Critical patent/JPS5780283A/en
Publication of JPS5780283A publication Critical patent/JPS5780283A/en
Publication of JPS6323755B2 publication Critical patent/JPS6323755B2/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
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/288—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using variable impedance
    • H02P7/2885—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using variable impedance whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE:To drive the motor at low speed, and to enlarge a range of the control of the number of revolution by using a DC-DC converter as a power supply of the drive circuit for the motor and changing the output voltage of the power supply in response to the variation of motor load. CONSTITUTION:In a circuit which compares speed signal detecting voltage from a revolution speed detector 6 with reference voltage 3, controls a drive transistor 4 by the error signal voltage and controls the DC motor 5 at fixed speed, a high efficiency variable voltage source 13 such as the DC-DC converter is used as the power supply. Detecting signals from a load current detecting resistor 20 connected in series with the motor 5 are inputted to a variable pulse width rectangular wave oscillator 14 of the variable voltage source 13, and the output voltage of the voltage source 13 is changed in response to load.
JP55155924A 1980-11-07 1980-11-07 Drive circuit for motor Granted JPS5780283A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55155924A JPS5780283A (en) 1980-11-07 1980-11-07 Drive circuit for motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55155924A JPS5780283A (en) 1980-11-07 1980-11-07 Drive circuit for motor

Publications (2)

Publication Number Publication Date
JPS5780283A true JPS5780283A (en) 1982-05-19
JPS6323755B2 JPS6323755B2 (en) 1988-05-18

Family

ID=15616480

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55155924A Granted JPS5780283A (en) 1980-11-07 1980-11-07 Drive circuit for motor

Country Status (1)

Country Link
JP (1) JPS5780283A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61116987A (en) * 1984-11-13 1986-06-04 Hitachi Ltd Rotating speed controller

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH028844U (en) * 1988-06-30 1990-01-19

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513673A (en) * 1978-07-15 1980-01-30 Sony Corp Servo-circuit of direct current motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513673A (en) * 1978-07-15 1980-01-30 Sony Corp Servo-circuit of direct current motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61116987A (en) * 1984-11-13 1986-06-04 Hitachi Ltd Rotating speed controller

Also Published As

Publication number Publication date
JPS6323755B2 (en) 1988-05-18

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