JPS5785588A - Speed control device for dc motor - Google Patents

Speed control device for dc motor

Info

Publication number
JPS5785588A
JPS5785588A JP55159548A JP15954880A JPS5785588A JP S5785588 A JPS5785588 A JP S5785588A JP 55159548 A JP55159548 A JP 55159548A JP 15954880 A JP15954880 A JP 15954880A JP S5785588 A JPS5785588 A JP S5785588A
Authority
JP
Japan
Prior art keywords
motor
field
circuit
conducting
triangular wave
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
JP55159548A
Other languages
Japanese (ja)
Inventor
Kimio Kono
Hidekazu Horiuchi
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 JP55159548A priority Critical patent/JPS5785588A/en
Publication of JPS5785588A publication Critical patent/JPS5785588A/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
    • H02P7/292—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 static converters, e.g. AC to DC
    • H02P7/293—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 static converters, e.g. AC to DC using phase control

Abstract

PURPOSE:To reduce the power loss of a DC motor by commonly using the DC power source for a motor main circuit for a power source of a field circuit and comparing a field command with a reference triangular wave similar to the control of the motor main circuit, thereby controlling in ON or OFF. CONSTITUTION:A trigger circuit 9 compares a triangular wave V5 becoming a reference with a voltage V0 corresponding to the speed command and outputs a signal VT1 for conducting the transistors 31, 32 and a signal VT2 for conducting transistors 33, 34. Accordingly, the speed of the motor 5 is controlled in response to the average value of the voltages. A field control circuit 130 produces a trigger signal for conducting and interrupting a field current control transistor 110 on the basis of the magnitude relationship between a reference triangular wave VS and a field command voltage vf. In this manner, a speed control device for a DC motor having low power loss can be inexpensively obtained.
JP55159548A 1980-11-14 1980-11-14 Speed control device for dc motor Pending JPS5785588A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55159548A JPS5785588A (en) 1980-11-14 1980-11-14 Speed control device for dc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55159548A JPS5785588A (en) 1980-11-14 1980-11-14 Speed control device for dc motor

Publications (1)

Publication Number Publication Date
JPS5785588A true JPS5785588A (en) 1982-05-28

Family

ID=15696146

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55159548A Pending JPS5785588A (en) 1980-11-14 1980-11-14 Speed control device for dc motor

Country Status (1)

Country Link
JP (1) JPS5785588A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55125093A (en) * 1979-03-20 1980-09-26 Fuji Electric Co Ltd Controlling device for dc motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55125093A (en) * 1979-03-20 1980-09-26 Fuji Electric Co Ltd Controlling device for dc motor

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