JPS528421A - Speed control device of d.c. motor - Google Patents

Speed control device of d.c. motor

Info

Publication number
JPS528421A
JPS528421A JP50083405A JP8340575A JPS528421A JP S528421 A JPS528421 A JP S528421A JP 50083405 A JP50083405 A JP 50083405A JP 8340575 A JP8340575 A JP 8340575A JP S528421 A JPS528421 A JP S528421A
Authority
JP
Japan
Prior art keywords
motor
control device
speed control
raising
feedback
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
JP50083405A
Other languages
Japanese (ja)
Inventor
Shunichiro Hayase
Takeo Yuminaka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP50083405A priority Critical patent/JPS528421A/en
Publication of JPS528421A publication Critical patent/JPS528421A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE: Raising responsive speed considerably by positive-feedback imperfect differential value of armature current.
COPYRIGHT: (C)1977,JPO&Japio
JP50083405A 1975-07-09 1975-07-09 Speed control device of d.c. motor Pending JPS528421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50083405A JPS528421A (en) 1975-07-09 1975-07-09 Speed control device of d.c. motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50083405A JPS528421A (en) 1975-07-09 1975-07-09 Speed control device of d.c. motor

Publications (1)

Publication Number Publication Date
JPS528421A true JPS528421A (en) 1977-01-22

Family

ID=13801506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50083405A Pending JPS528421A (en) 1975-07-09 1975-07-09 Speed control device of d.c. motor

Country Status (1)

Country Link
JP (1) JPS528421A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6257985U (en) * 1985-09-30 1987-04-10
JPH0748723A (en) * 1993-04-15 1995-02-21 Thibeau Fiber thin fabric separating apparatus in carding

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6257985U (en) * 1985-09-30 1987-04-10
JPH0748723A (en) * 1993-04-15 1995-02-21 Thibeau Fiber thin fabric separating apparatus in carding

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