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JPS5780282A - Variable power supply for driving motor - Google Patents

Variable power supply for driving motor

Info

Publication number
JPS5780282A
JPS5780282A JP55155918A JP15591880A JPS5780282A JP S5780282 A JPS5780282 A JP S5780282A JP 55155918 A JP55155918 A JP 55155918A JP 15591880 A JP15591880 A JP 15591880A JP S5780282 A JPS5780282 A JP S5780282A
Authority
JP
Japan
Prior art keywords
power supply
signals
voltage
circuit
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
JP55155918A
Other languages
Japanese (ja)
Other versions
JPS6327954B2 (en
Inventor
Isao Fukushima
Yoshinori Okada
Chikayuki Okamoto
Katsuhisa Muto
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 JP55155918A priority Critical patent/JPS5780282A/en
Publication of JPS5780282A publication Critical patent/JPS5780282A/en
Publication of JPS6327954B2 publication Critical patent/JPS6327954B2/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 prevent the damage of the motor, and to enable power saving drive by feeding back signals relating to the output voltage of the power supply and giving liminar characteristics to output voltage when using a DC-DC converter as the variable power supply. CONSTITUTION:A resistor 9 for detecting load currents is inserted in series with the motor and signals proportional to load are obtained in a circuit feeding electricity to the motor 7 and controlling it while employing a frequency-voltage converter 3 controlled by the signals of a variable duty-ratio type pulse generator 10 as the variable power supply 2. The signals are compared with reference voltage 23 by means of an amplifier 17, and the output is inputted to a level detection type signal changeover circuit 18. The output voltage of the power supply 2 is detected by means of voltage dividing resistors 25, 26, and compared with reference voltage 24 by means of an amplifier 19, and the output is inputted to the circuit 18. Both input signals are compared by means of the circuit 18, the larger signals are inputted to a pulse oscillator 10, and a limit is given to output voltage.
JP55155918A 1980-11-07 1980-11-07 Variable power supply for driving motor Granted JPS5780282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55155918A JPS5780282A (en) 1980-11-07 1980-11-07 Variable power supply for driving motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55155918A JPS5780282A (en) 1980-11-07 1980-11-07 Variable power supply for driving motor

Publications (2)

Publication Number Publication Date
JPS5780282A true JPS5780282A (en) 1982-05-19
JPS6327954B2 JPS6327954B2 (en) 1988-06-06

Family

ID=15616351

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55155918A Granted JPS5780282A (en) 1980-11-07 1980-11-07 Variable power supply for driving motor

Country Status (1)

Country Link
JP (1) JPS5780282A (en)

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

Also Published As

Publication number Publication date
JPS6327954B2 (en) 1988-06-06

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