JPS5716592A - Controlling device for rotating speed of dc motor - Google Patents

Controlling device for rotating speed of dc motor

Info

Publication number
JPS5716592A
JPS5716592A JP8997680A JP8997680A JPS5716592A JP S5716592 A JPS5716592 A JP S5716592A JP 8997680 A JP8997680 A JP 8997680A JP 8997680 A JP8997680 A JP 8997680A JP S5716592 A JPS5716592 A JP S5716592A
Authority
JP
Japan
Prior art keywords
transistor
armature
interrupted
motor
controlling device
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
JP8997680A
Other languages
Japanese (ja)
Inventor
Yoshiharu Tada
Ichiro Arai
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.)
Bosch Corp
Original Assignee
Diesel Kiki 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 Diesel Kiki Co Ltd filed Critical Diesel Kiki Co Ltd
Priority to JP8997680A priority Critical patent/JPS5716592A/en
Publication of JPS5716592A publication Critical patent/JPS5716592A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/0833—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for electric motors with control arrangements

Landscapes

  • Protection Of Generators And Motors (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE:To obtain a controlling device for a DC motor by providing a protecting unit for protecting a motor and a controlling transistor against burnout at the time of restricting the rotation of a motor without using a temperature fuse and a detecting resistor for detecting the restricting current of an armature. CONSTITUTION:When the rotation of an armature 1 is restricted, the current of an armature 1 is increased, a voltage Vc is raised, and the output voltage Vo of an arithmetic amplifier 5 is lowered to saturated state. Then, the emitter current of a transistor 6 is reduced, so that the transistor 6 is interrupted, and the transistor 13 is turn interrupted. When the transistor 13 is interrupted, the transistor 18 is conducted. Accordingly, the base voltage of the transistor 22 is raised, the transistor 22 is thus interrupted, and a relay 23 is deenergized. Then, the power source voltage Vcc to the armature 2 is interrupted via the relay contact 23-1, and the armature 1 is protected from the burnout.
JP8997680A 1980-07-03 1980-07-03 Controlling device for rotating speed of dc motor Pending JPS5716592A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8997680A JPS5716592A (en) 1980-07-03 1980-07-03 Controlling device for rotating speed of dc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8997680A JPS5716592A (en) 1980-07-03 1980-07-03 Controlling device for rotating speed of dc motor

Publications (1)

Publication Number Publication Date
JPS5716592A true JPS5716592A (en) 1982-01-28

Family

ID=13985697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8997680A Pending JPS5716592A (en) 1980-07-03 1980-07-03 Controlling device for rotating speed of dc motor

Country Status (1)

Country Link
JP (1) JPS5716592A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59103600U (en) * 1982-12-25 1984-07-12 株式会社日本コンラックス Protection circuit for small DC motors
CN102545746A (en) * 2012-03-08 2012-07-04 中国科学院合肥物质科学研究院 Novel speed regulator for automotive air conditioner fan and working method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59103600U (en) * 1982-12-25 1984-07-12 株式会社日本コンラックス Protection circuit for small DC motors
CN102545746A (en) * 2012-03-08 2012-07-04 中国科学院合肥物质科学研究院 Novel speed regulator for automotive air conditioner fan and working method thereof
CN102545746B (en) * 2012-03-08 2014-02-26 中国科学院合肥物质科学研究院 Novel speed regulator for automotive air conditioner fan and working method thereof

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