JPH0439095U - - Google Patents
Info
- Publication number
- JPH0439095U JPH0439095U JP8134590U JP8134590U JPH0439095U JP H0439095 U JPH0439095 U JP H0439095U JP 8134590 U JP8134590 U JP 8134590U JP 8134590 U JP8134590 U JP 8134590U JP H0439095 U JPH0439095 U JP H0439095U
- Authority
- JP
- Japan
- Prior art keywords
- field effect
- effect transistor
- thermistor
- drive circuit
- parallel
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 230000005856 abnormality Effects 0.000 claims description 4
- 230000005669 field effect Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Description
第１図はこの考案の実施例をモータ駆動回路に
接続した時の電気回路図、第２図はこの考案の実
装図、第３図は電源を逆接続した場合の異常検出
装置の電気回路図、第４図は別の実施例の異常検
出装置の電気回路図である。
１０……モータコントロールユニツト、２０…
…モータ駆動回路、３０……固定子、４０……速
度設定器、８０……異常検出装置。
Figure 1 is an electric circuit diagram when an embodiment of this invention is connected to a motor drive circuit, Figure 2 is an implementation diagram of this invention, and Figure 3 is an electric circuit diagram of an abnormality detection device when the power supply is connected in reverse. , FIG. 4 is an electric circuit diagram of an abnormality detection device according to another embodiment. 10...Motor control unit, 20...
...Motor drive circuit, 30...Stator, 40...Speed setter, 80...Abnormality detection device.
Claims (1)
し、ソース端子を前記駆動回路側にドレイン端子
を前記アース側に接続され、更にゲート端子を抵
抗を介してプラス電極に接続された電界効果トラ
ンジスタと、 前記電界効果トランジスタの近傍に配され、更
に該電界効果トランジスタに並列に接続されたサ
ーミスタと、 前記サーミスタに直列に接続され、更に前記電
界効果トランジスタに並列に接続された電界効果
トランジスタ電流検出手段とを具備したことを特
徴とするブラシレスモータの異常検出装置。[Claims for Utility Model Registration] Interposed between the drive circuit of a brushless motor and the ground, the source terminal is connected to the drive circuit side, the drain terminal is connected to the ground side, and the gate terminal is connected to the positive electrode via a resistor. a thermistor disposed near the field effect transistor and further connected in parallel to the field effect transistor; and a thermistor connected in series to the thermistor and further connected in parallel to the field effect transistor. 1. An abnormality detection device for a brushless motor, comprising: field effect transistor current detection means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8134590U JPH087838Y2 (en) | 1990-07-31 | 1990-07-31 | Abnormality detection device for brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8134590U JPH087838Y2 (en) | 1990-07-31 | 1990-07-31 | Abnormality detection device for brushless motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0439095U true JPH0439095U (en) | 1992-04-02 |
| JPH087838Y2 JPH087838Y2 (en) | 1996-03-04 |
Family
ID=31627208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8134590U Expired - Lifetime JPH087838Y2 (en) | 1990-07-31 | 1990-07-31 | Abnormality detection device for brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH087838Y2 (en) |
-
1990
- 1990-07-31 JP JP8134590U patent/JPH087838Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH087838Y2 (en) | 1996-03-04 |
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