JPS5619389A - Motor revolution control device - Google Patents

Motor revolution control device

Info

Publication number
JPS5619389A
JPS5619389A JP9322979A JP9322979A JPS5619389A JP S5619389 A JPS5619389 A JP S5619389A JP 9322979 A JP9322979 A JP 9322979A JP 9322979 A JP9322979 A JP 9322979A JP S5619389 A JPS5619389 A JP S5619389A
Authority
JP
Japan
Prior art keywords
motor
transistor
revolution
transistors
conducted
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
JP9322979A
Other languages
Japanese (ja)
Inventor
Toru Otsuka
Shunsuke Kohama
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP9322979A priority Critical patent/JPS5619389A/en
Publication of JPS5619389A publication Critical patent/JPS5619389A/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
    • H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors
    • H02P7/05—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors by means of electronic switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electric Motors In General (AREA)
  • Stopping Of Electric Motors (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE:To increase the braking force applied to a motor by switching a polarity of a voltage applied to a magnetism sensitive element for determining the revolution direction of the motor when the output of a servo error detecting operational amplifier reaches a predetermined level. CONSTITUTION:When the revolution n2 of a motor 18 per unit time is less than a predetermined value, transistors 9, 10 are conducted to flow a bias current through a magnetism sensitive element 15 in a direction A. At this time the transistor 17 is controlled by the output of the operational amplifier 6. When the revolution n2 is raised over a predetermined value, the transistors 9, 10 are shut off, and the transistor 13 is conducted to flow a bias current in a direction B through the element 15 to reversely drive the motor 18. Since the transistor 19 so operates as to again raise the base potential of the transistor 17, the drive current supplied from the power supply terminal V2 operates to brake the motor 18.
JP9322979A 1979-07-24 1979-07-24 Motor revolution control device Pending JPS5619389A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9322979A JPS5619389A (en) 1979-07-24 1979-07-24 Motor revolution control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9322979A JPS5619389A (en) 1979-07-24 1979-07-24 Motor revolution control device

Publications (1)

Publication Number Publication Date
JPS5619389A true JPS5619389A (en) 1981-02-24

Family

ID=14076706

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9322979A Pending JPS5619389A (en) 1979-07-24 1979-07-24 Motor revolution control device

Country Status (1)

Country Link
JP (1) JPS5619389A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055874A (en) * 1983-09-01 1985-04-01 イング・チイ・オリベツチ・アンド・チイ・エス・ピー・ア Speed and position determining controller of dc motor
US4874994A (en) * 1987-06-12 1989-10-17 Bts Broadcast Television Systems Gmbh Control circuit for a controller for use with a controlled element

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4926015A (en) * 1972-06-28 1974-03-08
JPS4926015B1 (en) * 1969-10-09 1974-07-05

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4926015B1 (en) * 1969-10-09 1974-07-05
JPS4926015A (en) * 1972-06-28 1974-03-08

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055874A (en) * 1983-09-01 1985-04-01 イング・チイ・オリベツチ・アンド・チイ・エス・ピー・ア Speed and position determining controller of dc motor
US4874994A (en) * 1987-06-12 1989-10-17 Bts Broadcast Television Systems Gmbh Control circuit for a controller for use with a controlled element

Similar Documents

Publication Publication Date Title
SE384761B (en) METHOD OF STABILIZATION OF THE THRESHOLD VOLTAGE AT A SILICEL CONTROL ELECTRODE - FIELD POWER TRANSISTOR DEVICE
JPS6451822A (en) Buffer circuit and integrated circuit using the same
GB1457587A (en) Current source
JPS54104524A (en) Speed control circuit for dc motor
KR930005029A (en) Internal power step-down circuit
JPS5619389A (en) Motor revolution control device
JPS57153583A (en) Speed controller for dc motor
JPS57196895A (en) Control circuit for electromagnetic drive device
MY118133A (en) Method and apparatus for measuring and regulating current to a load.
KR950021980A (en) Bootstrap circuit
JPS5768529A (en) Rotating speed controller for fuel pump
JPS6146187A (en) Speed controller of dc motor
JPS57179486A (en) Electromagnetic valve drive circuit
GB1430775A (en) Light intenstity integrating and memory circuit
JPS5716592A (en) Controlling device for rotating speed of dc motor
SU399410A1 (en) DEVICE FOR SWITCHING THYRISTOR
JPS5763935A (en) Bootstrap circuit
JPS5771283A (en) Speed control circuit for dc motor
JPS576449A (en) Voice operator circuit
JPS5698387A (en) Driving circuit of motor
JPS56153995A (en) Controlling device for motor
JPS5720192A (en) Controller for revolution number of dc motor
JPS56153996A (en) Controlling device for motor
JPS57110089A (en) Speed control device for dc brushless motor
JPS56103982A (en) Speed control device for small dc motor