JPS61129492U - - Google Patents
Info
- Publication number
- JPS61129492U JPS61129492U JP1299385U JP1299385U JPS61129492U JP S61129492 U JPS61129492 U JP S61129492U JP 1299385 U JP1299385 U JP 1299385U JP 1299385 U JP1299385 U JP 1299385U JP S61129492 U JPS61129492 U JP S61129492U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- switching element
- braking
- series
- detection means
- 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 4
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Protection Of Generators And Motors (AREA)
- Stopping Of Electric Motors (AREA)
Description
第１図は本考案の一実施例を示した回路図、第
２図は本考案の他の実施例を示した回路図、第３
図は従来例を示した回路図である。
１……モータ、６……通電用スイツチング素子
としてのトランジスタ、７……電源、１０……第
１のシヤント抵抗器、１２……過電流検出手段と
してのコンパレータ、１４……制動用スイツチン
グ素子としてのトランジスタ、２０……第２のシ
ヤント抵抗器、２５……過電流検出手段としての
コンパレータ。
Fig. 1 is a circuit diagram showing one embodiment of the invention, Fig. 2 is a circuit diagram showing another embodiment of the invention, and Fig. 3 is a circuit diagram showing another embodiment of the invention.
The figure is a circuit diagram showing a conventional example. DESCRIPTION OF SYMBOLS 1...Motor, 6...Transistor as a switching element for energization, 7...Power source, 10...First shunt resistor, 12...Comparator as overcurrent detection means, 14...As a braking switching element transistor, 20... second shunt resistor, 25... comparator as overcurrent detection means.
Claims (1)
ツチング素子と、前記モータに並列接続される制
動用スイツチング素子と、前記モータに直列接続
されてモータ通電時の電流を検出する第１のシヤ
ント抵抗器と、前記制動用スイツチング素子に直
列接続されてモータ制動時の電流を検出する第２
のシヤント抵抗器と、前記第１および第２のシヤ
ント抵抗器の出力を予め設定された基準値より大
きくなつたことを検出する過電流検出手段とを備
え、この過電流検出手段が過電流を検出すると前
記通電用スイツチング素子および前記制動用スイ
ツチング素子を非動作状態にするよう構成したこ
とを特徴とするモータ制御回路。 A switching element for energization connected in series between the power supplies of the motor, a switching element for braking connected in parallel to the motor, and a first shunt resistor connected in series to the motor to detect current when the motor is energized. and a second one connected in series to the braking switching element to detect the current when braking the motor.
shunt resistor, and overcurrent detection means for detecting that the outputs of the first and second shunt resistors have become larger than a preset reference value, and the overcurrent detection means detects an overcurrent. A motor control circuit characterized in that the motor control circuit is configured to put the energizing switching element and the braking switching element into a non-operating state when detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1299385U JPS61129492U (en) | 1985-01-31 | 1985-01-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1299385U JPS61129492U (en) | 1985-01-31 | 1985-01-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61129492U true JPS61129492U (en) | 1986-08-13 |
Family
ID=30496582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1299385U Pending JPS61129492U (en) | 1985-01-31 | 1985-01-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61129492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01126102A (en) * | 1987-07-27 | 1989-05-18 | Suzuki Motor Co Ltd | Braking device for electric motor vehicle |
-
1985
- 1985-01-31 JP JP1299385U patent/JPS61129492U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01126102A (en) * | 1987-07-27 | 1989-05-18 | Suzuki Motor Co Ltd | Braking device for electric motor vehicle |