JPH03117399U - - Google Patents
Info
- Publication number
- JPH03117399U JPH03117399U JP2559190U JP2559190U JPH03117399U JP H03117399 U JPH03117399 U JP H03117399U JP 2559190 U JP2559190 U JP 2559190U JP 2559190 U JP2559190 U JP 2559190U JP H03117399 U JPH03117399 U JP H03117399U
- Authority
- JP
- Japan
- Prior art keywords
- noise
- motor
- electric motor
- comparing
- determining
- 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
- 238000001514 detection method Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Protection Of Generators And Motors (AREA)
- Control Of Direct Current Motors (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2559190U JPH03117399U (en]) | 1990-03-13 | 1990-03-13 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2559190U JPH03117399U (en]) | 1990-03-13 | 1990-03-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03117399U true JPH03117399U (en]) | 1991-12-04 |
Family
ID=31528523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2559190U Pending JPH03117399U (en]) | 1990-03-13 | 1990-03-13 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03117399U (en]) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53135662A (en) * | 1977-04-30 | 1978-11-27 | Nippon Telegr & Teleph Corp <Ntt> | Non-reversible light circuit element |
JPS6412891A (en) * | 1987-07-03 | 1989-01-17 | Japan Servo | Control device of dc motor |
-
1990
- 1990-03-13 JP JP2559190U patent/JPH03117399U/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53135662A (en) * | 1977-04-30 | 1978-11-27 | Nippon Telegr & Teleph Corp <Ntt> | Non-reversible light circuit element |
JPS6412891A (en) * | 1987-07-03 | 1989-01-17 | Japan Servo | Control device of dc motor |
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