JPH0275997U - - Google Patents
Info
- Publication number
- JPH0275997U JPH0275997U JP15377088U JP15377088U JPH0275997U JP H0275997 U JPH0275997 U JP H0275997U JP 15377088 U JP15377088 U JP 15377088U JP 15377088 U JP15377088 U JP 15377088U JP H0275997 U JPH0275997 U JP H0275997U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- voltage
- detection circuit
- voltage detection
- terminals
- 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 6
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案に係る電動機の制動装置の実施
例を示したブロツクダイアグラム、第２図はその
電圧検出回路及び制動回路を示した回路図、第３
図は電動機の回転数と負荷トルクと端子間電圧の
関係を示したグラフ。
１０……電源、１２……電圧制御回路、１４…
…電圧検出回路、１８……制動回路、２０……電
動機、２２，２４……端子。
FIG. 1 is a block diagram showing an embodiment of a braking device for an electric motor according to the present invention, FIG. 2 is a circuit diagram showing a voltage detection circuit and a braking circuit thereof, and FIG.
The figure is a graph showing the relationship between motor rotation speed, load torque, and terminal voltage. 10...Power supply, 12...Voltage control circuit, 14...
...Voltage detection circuit, 18... Braking circuit, 20... Electric motor, 22, 24... Terminal.
Claims (1)
給電圧と前記電動機の端子間電圧とを検出する電
圧検出回路と、 前記電動機と電圧検出回路との間に接続され、
前記端子間電圧が前記供給電圧を超えた際には電
動機の端子間を短絡すると共に電動機からの逆起
電力による制動電流を電動機へ流す制動回路とを
具備することを特徴とする電動機の制動装置。 ２ 前記電源と電圧検出回路との間に、前記電動
機への印加電圧を変化させるための電圧制御回路
を設けたことを特徴とする請求項１記載の電動機
の制動装置。[Claims for Utility Model Registration] 1. A voltage detection circuit connected between a power source and a motor to detect the supplied supply voltage and the voltage between the terminals of the motor; and a voltage detection circuit connected between the motor and the voltage detection circuit. is,
A braking device for a motor, comprising a braking circuit that short-circuits the terminals of the motor when the voltage between the terminals exceeds the supply voltage, and causes a braking current due to a back electromotive force from the motor to flow to the motor. . 2. The braking device for an electric motor according to claim 1, further comprising a voltage control circuit for changing the voltage applied to the electric motor between the power source and the voltage detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15377088U JPH0275997U (en) | 1988-11-25 | 1988-11-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15377088U JPH0275997U (en) | 1988-11-25 | 1988-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0275997U true JPH0275997U (en) | 1990-06-11 |
Family
ID=31429905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15377088U Pending JPH0275997U (en) | 1988-11-25 | 1988-11-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0275997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019049683A1 (en) * | 2017-09-05 | 2019-03-14 | エドワーズ株式会社 | Vacuum pump and motor control device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59117470A (en) * | 1982-12-23 | 1984-07-06 | Toshiba Corp | Power control circuit |
-
1988
- 1988-11-25 JP JP15377088U patent/JPH0275997U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59117470A (en) * | 1982-12-23 | 1984-07-06 | Toshiba Corp | Power control circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019049683A1 (en) * | 2017-09-05 | 2019-03-14 | エドワーズ株式会社 | Vacuum pump and motor control device |
| JP2019047680A (en) * | 2017-09-05 | 2019-03-22 | エドワーズ株式会社 | Vacuum pump and motor controller |
| US11114957B2 (en) | 2017-09-05 | 2021-09-07 | Edwards Japan Limited | Vacuum pump and motor controller |
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