JPS54115723A - Speed controller for dc motor - Google Patents

Speed controller for dc motor

Info

Publication number
JPS54115723A
JPS54115723A JP2322278A JP2322278A JPS54115723A JP S54115723 A JPS54115723 A JP S54115723A JP 2322278 A JP2322278 A JP 2322278A JP 2322278 A JP2322278 A JP 2322278A JP S54115723 A JPS54115723 A JP S54115723A
Authority
JP
Japan
Prior art keywords
iara
added
motor
armature
driving
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
JP2322278A
Other languages
Japanese (ja)
Other versions
JPS6126314B2 (en
Inventor
Keiji Matsumoto
Toshikazu Kito
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2322278A priority Critical patent/JPS54115723A/en
Publication of JPS54115723A publication Critical patent/JPS54115723A/en
Publication of JPS6126314B2 publication Critical patent/JPS6126314B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE: To perform highly responsive field control through simple adjusting without requiring expensive subtractor by comparing between the armature voltage and the weakening field starting voltage to perform the field weakening control and not performing the subtraction of armature current only during the driving.
CONSTITUTION: When performing the automatic field weakening control through the counter electromotive power detection, a switching circuit 11 functioning upon the polarities of armature voltage Va and IaRa obtained from the armature current detected through the detector 7 is provided, and two outputs V1, V2 from said circuit 11 are added on the output from the absolute value circuit 10. Consequently when Va and IaRa have same polarity and the motor 2 is in driving state IaRa isn't added nor subtracted from absolute value of the armature voltage while it is added only when they have different polarity and the motor 2 is in regenerative state, the driving output is always maintained at the rated level thereby the adjusting is simplified without requiring the expensive subtractor.
COPYRIGHT: (C)1979,JPO&Japio
JP2322278A 1978-03-01 1978-03-01 Speed controller for dc motor Granted JPS54115723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2322278A JPS54115723A (en) 1978-03-01 1978-03-01 Speed controller for dc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2322278A JPS54115723A (en) 1978-03-01 1978-03-01 Speed controller for dc motor

Publications (2)

Publication Number Publication Date
JPS54115723A true JPS54115723A (en) 1979-09-08
JPS6126314B2 JPS6126314B2 (en) 1986-06-19

Family

ID=12104611

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2322278A Granted JPS54115723A (en) 1978-03-01 1978-03-01 Speed controller for dc motor

Country Status (1)

Country Link
JP (1) JPS54115723A (en)

Also Published As

Publication number Publication date
JPS6126314B2 (en) 1986-06-19

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