JPS55127874A - Neutral point adjusting method for motor - Google Patents
Neutral point adjusting method for motorInfo
- Publication number
- JPS55127874A JPS55127874A JP3528779A JP3528779A JPS55127874A JP S55127874 A JPS55127874 A JP S55127874A JP 3528779 A JP3528779 A JP 3528779A JP 3528779 A JP3528779 A JP 3528779A JP S55127874 A JPS55127874 A JP S55127874A
- Authority
- JP
- Japan
- Prior art keywords
- detecting
- magnetization
- motor
- neutral point
- magnet
- 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
- Brushless Motors (AREA)
- Manufacture Of Motors, Generators (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
PURPOSE: To enable electrical adjustment of a neutral point of a motor and to reduce the adjusting process of the neutral point by remagnetizing a magnet for rotary position detection with a magnetization signal, changed in phase in a rotary position detecting signal.
CONSTITUTION: A rotary point detecting signal b obtained from a Hall element 15 opposing to a magnet 13 to be used for rotary position detection and a detecting output a corresponding to a motor driving current obtained from a current detecting circuit 22, which is connected to a power source of the motor, are sent to a neutral point discriminating circuit 23. Then an increase or a decrease of the motor driving current (corresponding to the detecting output a) at the time when the magnetizing position of the position detecting magnet 13 is changed in accordance with the above-mentioned magnetization signal by a magnetization circuit 24 and a magnetization head 20. Then the change of the magnetization point of the position detecting magnet 13 is suspended when the motor driving current dropped to the minimum, i.e. when the detecting output a became the smallest.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3528779A JPS55127874A (en) | 1979-03-26 | 1979-03-26 | Neutral point adjusting method for motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3528779A JPS55127874A (en) | 1979-03-26 | 1979-03-26 | Neutral point adjusting method for motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55127874A true JPS55127874A (en) | 1980-10-03 |
Family
ID=12437549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3528779A Pending JPS55127874A (en) | 1979-03-26 | 1979-03-26 | Neutral point adjusting method for motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55127874A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS622213U (en) * | 1985-06-20 | 1987-01-08 | ||
JPS625612U (en) * | 1985-06-25 | 1987-01-14 | ||
JPS62149106A (en) * | 1985-12-23 | 1987-07-03 | Yamauchi Rubber Ind Co Ltd | Magnetizing apparatus |
-
1979
- 1979-03-26 JP JP3528779A patent/JPS55127874A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS622213U (en) * | 1985-06-20 | 1987-01-08 | ||
JPS625612U (en) * | 1985-06-25 | 1987-01-14 | ||
JPS62149106A (en) * | 1985-12-23 | 1987-07-03 | Yamauchi Rubber Ind Co Ltd | Magnetizing apparatus |
JPH0439209B2 (en) * | 1985-12-23 | 1992-06-26 |
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