JPS5656185A - Speed control system for dc motor - Google Patents

Speed control system for dc motor

Info

Publication number
JPS5656185A
JPS5656185A JP13102279A JP13102279A JPS5656185A JP S5656185 A JPS5656185 A JP S5656185A JP 13102279 A JP13102279 A JP 13102279A JP 13102279 A JP13102279 A JP 13102279A JP S5656185 A JPS5656185 A JP S5656185A
Authority
JP
Japan
Prior art keywords
motor
pulse train
switch
detection signal
phase
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
JP13102279A
Other languages
Japanese (ja)
Inventor
Seiichi Ikegami
Masataka Oota
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.)
NEC Corp
Nippon Telegraph and Telephone Corp
Original Assignee
NEC Corp
Nippon Telegraph and Telephone Corp
Nippon Electric Co 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 NEC Corp, Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP13102279A priority Critical patent/JPS5656185A/en
Publication of JPS5656185A publication Critical patent/JPS5656185A/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
    • 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
    • H02P7/29—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 pulse modulation
    • H02P7/2913—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 pulse modulation 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 simplify the configuration of a DC motor by comparing in phase a pulse train of reference frequency with a pulse train of frequency proportional to the rotating speed of the motor and controlling the switch of a drive circuit by the detection signal therefrom. CONSTITUTION:An encoder 4 is directly coupled to a motor 5 to obtain a pulse train of frequency proportional to the rotating speed of the motor. The pulse train thus obtained and a pulse train of reference frequency are applied to a phase detector 1. The phase detector 1 compares the phases of both the pulse trains and applies the resulting delay phase detection signal c to a switch 2 for flowing a current in an accelerating direction and the resulting lead phase detection signal d to a switch 3 for flowing a current in a decelerating direction. Thus, the power consumption in the drive circuit including the switches 2, 3 is reduced, and the circuit arrangement can be simplified.
JP13102279A 1979-10-11 1979-10-11 Speed control system for dc motor Pending JPS5656185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13102279A JPS5656185A (en) 1979-10-11 1979-10-11 Speed control system for dc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13102279A JPS5656185A (en) 1979-10-11 1979-10-11 Speed control system for dc motor

Publications (1)

Publication Number Publication Date
JPS5656185A true JPS5656185A (en) 1981-05-18

Family

ID=15048162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13102279A Pending JPS5656185A (en) 1979-10-11 1979-10-11 Speed control system for dc motor

Country Status (1)

Country Link
JP (1) JPS5656185A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4854417A (en) * 1971-11-12 1973-07-31

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4854417A (en) * 1971-11-12 1973-07-31

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