JPS55141987A - Damping device - Google Patents

Damping device

Info

Publication number
JPS55141987A
JPS55141987A JP508980A JP508980A JPS55141987A JP S55141987 A JPS55141987 A JP S55141987A JP 508980 A JP508980 A JP 508980A JP 508980 A JP508980 A JP 508980A JP S55141987 A JPS55141987 A JP S55141987A
Authority
JP
Japan
Prior art keywords
shaft
given
motor
braking
integration
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
JP508980A
Other languages
Japanese (ja)
Other versions
JPS5727674B2 (en
Inventor
Tetsuaki Araki
Hideaki Hayashi
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.)
Nippon Columbia Co Ltd
Original Assignee
Nippon Columbia 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 Nippon Columbia Co Ltd filed Critical Nippon Columbia Co Ltd
Priority to JP508980A priority Critical patent/JPS55141987A/en
Publication of JPS55141987A publication Critical patent/JPS55141987A/en
Publication of JPS5727674B2 publication Critical patent/JPS5727674B2/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
    • H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
    • H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
    • H02P3/24—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor by applying dc to the motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rotational Drive Of Disk (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

PURPOSE:To stop quickly a turntable for record players which turns at low speed by biasing a shaft according to a braking current working as a direct current through integration by an inductance component given in a shaft biasing means. CONSTITUTION:While a driving signal applied on an amplification circuits 46a, 46b was given at 90 deg. in phase difference at a driving state, the phase difference develops to 180 deg. from coming in a stop state according to a stop command, and thus a reversing torque arises to give a damping force to a two-phase motor 24. When the motor comes to run at a given rotational frequency, a rotation detecting circuit 58 generates an output, and a pulse current flows by a transistor Tr1 of a DC braking circuit 59 being turned on. The pulse current becomes a DC braking current through integration by an inductance component of a stator winding 60b, which biases a shaft and a rotor of the motor 24, thus giving a damping force by a friction between a bearing and the shaft to loads.
JP508980A 1980-01-18 1980-01-18 Damping device Granted JPS55141987A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP508980A JPS55141987A (en) 1980-01-18 1980-01-18 Damping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP508980A JPS55141987A (en) 1980-01-18 1980-01-18 Damping device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP5571477A Division JPS53140472A (en) 1976-05-20 1977-05-13 Brake

Publications (2)

Publication Number Publication Date
JPS55141987A true JPS55141987A (en) 1980-11-06
JPS5727674B2 JPS5727674B2 (en) 1982-06-11

Family

ID=11601661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP508980A Granted JPS55141987A (en) 1980-01-18 1980-01-18 Damping device

Country Status (1)

Country Link
JP (1) JPS55141987A (en)

Also Published As

Publication number Publication date
JPS5727674B2 (en) 1982-06-11

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