JPS54153248A - Current controller - Google Patents
Current controllerInfo
- Publication number
- JPS54153248A JPS54153248A JP6252778A JP6252778A JPS54153248A JP S54153248 A JPS54153248 A JP S54153248A JP 6252778 A JP6252778 A JP 6252778A JP 6252778 A JP6252778 A JP 6252778A JP S54153248 A JPS54153248 A JP S54153248A
- Authority
- JP
- Japan
- Prior art keywords
- current
- gap
- controlled
- unbalanced
- detected
- 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
Links
Landscapes
- Direct Current Feeding And Distribution (AREA)
Abstract
PURPOSE: To detect the composite magnetic flux given by unbalanced currents by using an annular iron core with a gap for a highly accurate detection in a simple structure when the phase current in a thyristor rectifier of double star connection is controlled in balancing.
CONSTITUTION: When the current at the neutral point of two transformer windings 1 and 2 of double star connection is detected for controlling the ignition of thyristors 3∼8 by that signal, conductors 34 and 35 connecting between neutral points are inserted through the inner space of an annular iron core with a gap 36 so that their ampere turns deny each other. Then, the detected voltage by unbalanced current generated in a magnetic flux detecting element 50 provided in the gap 36 is given to an operational amplifier 14, by whose output thyristors 3∼8 are controlled. In this construction, the unbalanced current is detected magnetically without using current transformers 11 and 12 to be used for a feedback signal, and current can be controlled very accurately in a simple structure.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6252778A JPS54153248A (en) | 1978-05-24 | 1978-05-24 | Current controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6252778A JPS54153248A (en) | 1978-05-24 | 1978-05-24 | Current controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54153248A true JPS54153248A (en) | 1979-12-03 |
Family
ID=13202739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6252778A Pending JPS54153248A (en) | 1978-05-24 | 1978-05-24 | Current controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54153248A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4873474A (en) * | 1989-04-20 | 1989-10-10 | Warn Industries, Inc. | Winch with shut-off load limiter |
US5648887A (en) * | 1994-06-09 | 1997-07-15 | Warn Industries, Inc. | Electric current limiting device for winch responsive to multiple device states |
US6046893A (en) * | 1998-06-06 | 2000-04-04 | Warn Industries, Inc. | Programmable electronic current limiter |
-
1978
- 1978-05-24 JP JP6252778A patent/JPS54153248A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4873474A (en) * | 1989-04-20 | 1989-10-10 | Warn Industries, Inc. | Winch with shut-off load limiter |
US5648887A (en) * | 1994-06-09 | 1997-07-15 | Warn Industries, Inc. | Electric current limiting device for winch responsive to multiple device states |
US6046893A (en) * | 1998-06-06 | 2000-04-04 | Warn Industries, Inc. | Programmable electronic current limiter |
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