JPS5456121A - Speed controller for dc motor - Google Patents

Speed controller for dc motor

Info

Publication number
JPS5456121A
JPS5456121A JP12330477A JP12330477A JPS5456121A JP S5456121 A JPS5456121 A JP S5456121A JP 12330477 A JP12330477 A JP 12330477A JP 12330477 A JP12330477 A JP 12330477A JP S5456121 A JPS5456121 A JP S5456121A
Authority
JP
Japan
Prior art keywords
motor
circuit
drive circuit
speed
rotation
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
JP12330477A
Other languages
Japanese (ja)
Other versions
JPS6310670B2 (en
Inventor
Noriyuki Harao
Toshinobu Maeda
Yoshifumi Matsuoka
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP12330477A priority Critical patent/JPS5456121A/en
Publication of JPS5456121A publication Critical patent/JPS5456121A/en
Publication of JPS6310670B2 publication Critical patent/JPS6310670B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Stopping Of Electric Motors (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE: To enable a recovery smoothly returning to the set speed of rotation, with a hunting prevented from occurring, in cases that a rotational speed of the motor come to be above the set speed of rotation due to a disturbance.
CONSTITUTION: A speed of DC motor 1 is detected by a frequency generator 3, being converted into a voltage signal by a F-V converter 4, with a signal inputted to a forward run-brake switching circuit 5, and in accordance with whether an operation at forward run or brake, are switched a drive circuit 2 and a differential amplifier outpout selector circuit 6. An output signal of differential amplifier 7 is given to the drive circuit 2 through the output selector circuit 6 and DC amplifier 8, making a control of the motor 1. The forward run-brake switching circuit 5, by means of switching the drive circuit 2 through a drive circuit switching circuit 9, will change a generating torque of the motor 1 to a positive direction and negative direction in a manner of interlocking, and in case of the rotational speed increasing due to a disturbance, a recovery to smoothly return to the initial speed of rotation can be operated without causing phenomena of hunting
COPYRIGHT: (C)1979,JPO&Japio
JP12330477A 1977-10-13 1977-10-13 Speed controller for dc motor Granted JPS5456121A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12330477A JPS5456121A (en) 1977-10-13 1977-10-13 Speed controller for dc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12330477A JPS5456121A (en) 1977-10-13 1977-10-13 Speed controller for dc motor

Publications (2)

Publication Number Publication Date
JPS5456121A true JPS5456121A (en) 1979-05-04
JPS6310670B2 JPS6310670B2 (en) 1988-03-08

Family

ID=14857217

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12330477A Granted JPS5456121A (en) 1977-10-13 1977-10-13 Speed controller for dc motor

Country Status (1)

Country Link
JP (1) JPS5456121A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03234179A (en) * 1990-02-08 1991-10-18 Sanyo Electric Co Ltd Protection circuit for television receiver

Also Published As

Publication number Publication date
JPS6310670B2 (en) 1988-03-08

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