JPS5583489A - Driving circuit of dc electric motor - Google Patents

Driving circuit of dc electric motor

Info

Publication number
JPS5583489A
JPS5583489A JP15823678A JP15823678A JPS5583489A JP S5583489 A JPS5583489 A JP S5583489A JP 15823678 A JP15823678 A JP 15823678A JP 15823678 A JP15823678 A JP 15823678A JP S5583489 A JPS5583489 A JP S5583489A
Authority
JP
Japan
Prior art keywords
circuit
current control
control loop
current
signal
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
JP15823678A
Other languages
Japanese (ja)
Other versions
JPS607916B2 (en
Inventor
Shigeki Kawada
Yoshimoto Fujioka
Naoto Oota
Yasuo Takahashi
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.)
Fanuc Corp
Original Assignee
Fanuc Corp
Fujitsu Fanuc 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 Fanuc Corp, Fujitsu Fanuc Ltd filed Critical Fanuc Corp
Priority to JP53158236A priority Critical patent/JPS607916B2/en
Publication of JPS5583489A publication Critical patent/JPS5583489A/en
Publication of JPS607916B2 publication Critical patent/JPS607916B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE: To make a soft start and a current control loop unaffected by positive feedback, by providing a filter circuit and a clamping circuit in the front portion of the current control loop, and obtaining a directional signal from within the current control loop.
CONSTITUTION: A current base signal from a speed control circuit 2 is input to a current control circuit 5 through the filter circuit 8 by means of a driving circuit having a thyristor conversion circuit. To this filter circuit 8., for instance, a clamping circuit which consists of 2 pieces of diodes connected in parallel in a reverse direction and FFT is connected, and the current base value is blocked in such a manner that the value is sufficiently low so as not to lose directivity during a period of gate lock. Further the input signal to a directional signal circuit 7 is to be obtained from within the current control circuit 5. On doing this, a soft start is possible when changing over a thyristor conversion circuit, and the positive feedback is made not to affect the current control loop.
COPYRIGHT: (C)1980,JPO&Japio
JP53158236A 1978-12-19 1978-12-19 DC motor drive circuit Expired JPS607916B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53158236A JPS607916B2 (en) 1978-12-19 1978-12-19 DC motor drive circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53158236A JPS607916B2 (en) 1978-12-19 1978-12-19 DC motor drive circuit

Publications (2)

Publication Number Publication Date
JPS5583489A true JPS5583489A (en) 1980-06-23
JPS607916B2 JPS607916B2 (en) 1985-02-27

Family

ID=15667243

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53158236A Expired JPS607916B2 (en) 1978-12-19 1978-12-19 DC motor drive circuit

Country Status (1)

Country Link
JP (1) JPS607916B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4628235A (en) * 1985-09-19 1986-12-09 Gulf & Western Manufacturing Company Control circuit for motor driver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4628235A (en) * 1985-09-19 1986-12-09 Gulf & Western Manufacturing Company Control circuit for motor driver

Also Published As

Publication number Publication date
JPS607916B2 (en) 1985-02-27

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