JPS57135695A - Constant speed control circuit for dc motor suppressed for production of noise, vibration - Google Patents

Constant speed control circuit for dc motor suppressed for production of noise, vibration

Info

Publication number
JPS57135695A
JPS57135695A JP56020247A JP2024781A JPS57135695A JP S57135695 A JPS57135695 A JP S57135695A JP 56020247 A JP56020247 A JP 56020247A JP 2024781 A JP2024781 A JP 2024781A JP S57135695 A JPS57135695 A JP S57135695A
Authority
JP
Japan
Prior art keywords
motor
armature current
output
schmitt trigger
vibration
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
JP56020247A
Other languages
Japanese (ja)
Inventor
Itsuki Ban
Manabu Shiraki
Ikumasa Ikeda
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.)
Sekoh Giken KK
Secoh Giken Co Ltd
Original Assignee
Sekoh Giken KK
Secoh Giken 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 Sekoh Giken KK, Secoh Giken Co Ltd filed Critical Sekoh Giken KK
Priority to JP56020247A priority Critical patent/JPS57135695A/en
Publication of JPS57135695A publication Critical patent/JPS57135695A/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
    • H02P7/2855—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 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 suppress the production of noise and vibration of a DC motor by setting the energizing current waveform of the motor to a voltage waveform half-wave or full-wave rectified from the AC voltage of a semiconductor switching element and a freewheel diode. CONSTITUTION:When an armature current detection output detected by a resistor 10 is raised over the upper side slice level of a Schmitt trigger 26, transistors 27, 7 are interrupted, the magnetic energy of a motor 9 is discharged through a freewheel diode 11, thereby gradually reducing the armature current. As th armature current decreases, the detected output of the resistor 10 is lowered over the lowerside slice level of the Schmitt trigger 26. Then, the transistors 27, 7 are conducted, and the armature current is again increased. Accordingly, the constant speed control determined by the hysteresis width of the Schmitt trigger 26 is performed by controlling the gate voltage of the FET14 and the output of the OP amplifier 17 by the output of an error amplifer 30.
JP56020247A 1981-02-16 1981-02-16 Constant speed control circuit for dc motor suppressed for production of noise, vibration Pending JPS57135695A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56020247A JPS57135695A (en) 1981-02-16 1981-02-16 Constant speed control circuit for dc motor suppressed for production of noise, vibration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56020247A JPS57135695A (en) 1981-02-16 1981-02-16 Constant speed control circuit for dc motor suppressed for production of noise, vibration

Publications (1)

Publication Number Publication Date
JPS57135695A true JPS57135695A (en) 1982-08-21

Family

ID=12021858

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56020247A Pending JPS57135695A (en) 1981-02-16 1981-02-16 Constant speed control circuit for dc motor suppressed for production of noise, vibration

Country Status (1)

Country Link
JP (1) JPS57135695A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1079511A1 (en) * 1999-08-26 2001-02-28 Linak A/S Power supply for DC-motors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1079511A1 (en) * 1999-08-26 2001-02-28 Linak A/S Power supply for DC-motors
US6509705B2 (en) 1999-08-26 2003-01-21 Linak A/S Power supply for DC motors

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