JPH0244898U - - Google Patents
Info
- Publication number
- JPH0244898U JPH0244898U JP1988009661U JP966188U JPH0244898U JP H0244898 U JPH0244898 U JP H0244898U JP 1988009661 U JP1988009661 U JP 1988009661U JP 966188 U JP966188 U JP 966188U JP H0244898 U JPH0244898 U JP H0244898U
- Authority
- JP
- Japan
- Prior art keywords
- detection signal
- magnetic pole
- pole detector
- rotor
- phase windings
- 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 3
- 238000004804 winding Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Description
第１図は本案になる一実施例の回路図、第２図
は第１図のタイミングチヤートを示す図である。
１……Ｕ相信号、２……Ｖ相信号、３……Ｗ相
信号、４……エンコーダ信号、５〜７……論理積
回路、８〜１０……計数回路、１１〜１３……比
較回路、１４……論理和回路、１５……異常信号
。
FIG. 1 is a circuit diagram of an embodiment of the present invention, and FIG. 2 is a diagram showing a timing chart of FIG. 1. 1...U phase signal, 2...V phase signal, 3...W phase signal, 4...encoder signal, 5-7...AND circuit, 8-10...counting circuit, 11-13...comparison Circuit, 14...OR circuit, 15...Abnormal signal.
Claims (1)
り成る回転子、該回転子の磁極を検出する磁極検
出子、該磁極検出子からの検出信号に基づいて上
記多相の巻線の所定の値に電流を流すスイツチン
グ素子、モータ軸と同軸上に取付られたエンコー
ダよりなるブラシレスモータにおいて、上記磁極
検出子の検出信号幅をエンコーダのパルス数を用
いて計測することを特徴としたブラシレスモータ
の保護回路。 A stator consisting of multi-phase windings, a rotor consisting of multi-polar permanent magnets, a magnetic pole detector for detecting the magnetic poles of the rotor, and a detection signal of the multi-phase windings based on the detection signal from the magnetic pole detector. A brushless motor consisting of a switching element that causes current to flow to a predetermined value and an encoder mounted coaxially with the motor shaft, characterized in that the detection signal width of the magnetic pole detector is measured using the number of pulses of the encoder. Motor protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988009661U JPH0244898U (en) | 1988-01-29 | 1988-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988009661U JPH0244898U (en) | 1988-01-29 | 1988-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0244898U true JPH0244898U (en) | 1990-03-28 |
Family
ID=31216599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988009661U Pending JPH0244898U (en) | 1988-01-29 | 1988-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0244898U (en) |
-
1988
- 1988-01-29 JP JP1988009661U patent/JPH0244898U/ja active Pending
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