JPS54115723A - Speed controller for dc motor - Google Patents
Speed controller for dc motorInfo
- 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
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
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) |
-
1978
- 1978-03-01 JP JP2322278A patent/JPS54115723A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6126314B2 (en) | 1986-06-19 |
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