JPS6214998U - - Google Patents
Info
- Publication number
- JPS6214998U JPS6214998U JP1985105527U JP10552785U JPS6214998U JP S6214998 U JPS6214998 U JP S6214998U JP 1985105527 U JP1985105527 U JP 1985105527U JP 10552785 U JP10552785 U JP 10552785U JP S6214998 U JPS6214998 U JP S6214998U
- Authority
- JP
- Japan
- Prior art keywords
- current
- switching driver
- voltage
- normal
- supplied
- 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 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Control Of Voltage And Current In General (AREA)
- Control Of Direct Current Motors (AREA)
Description
第１図は本考案の正転反転切換ドライバの電流
制限回路の一実施例を示した回路図、第２図は第
１図に示した正転反転切換ドライバの詳細例を示
した回路図、第３図は本考案の他の実施例を示し
た回路図、第４図は本考案の更に他の実施例を示
した回路図、第５図は正転反転切換ドライバの電
流制限回路の従来例を示した回路図である。
１，８，１６，１７…トランジスタ、３…正転
反転切換ドライバ、４，５，１０，１４，１５…
抵抗、６…オペアンプ、７…負荷、１１，１２…
ダイオード。
FIG. 1 is a circuit diagram showing an embodiment of the current limiting circuit of the forward/inversion switching driver of the present invention, and FIG. 2 is a circuit diagram showing a detailed example of the normal/inversion switching driver shown in FIG. 1. Fig. 3 is a circuit diagram showing another embodiment of the present invention, Fig. 4 is a circuit diagram showing still another embodiment of the present invention, and Fig. 5 is a conventional current limiting circuit for a normal/inverting switching driver. FIG. 2 is a circuit diagram showing an example. 1, 8, 16, 17...Transistor, 3...Normal rotation/inversion switching driver, 4, 5, 10, 14, 15...
Resistor, 6... operational amplifier, 7... load, 11, 12...
diode.
Claims (1)
切換ドライバへ供給する電流が基準電圧以上とな
つた場合に、この電流を制限して過電流が前記正
転反転切換ドライバへ供給されないようにする電
流制限回路において、前記正転反転切換ドライバ
へ流れる電流の大きさを検出すべく前記正転反転
切換ドライバの接地側電流経路に挿入した電流検
出用抵抗を設け、この電流検出用抵抗に発生した
電圧を比較回路に印加することにより、この電圧
と前記基準電圧とを比較して前記電流を制限する
制御信号を発生させることを特徴とする正転反転
切換ドライバの電流制限回路。 A current that limits this current to prevent overcurrent from being supplied to the normal/reverse switching driver when the current supplied to the forward/reverse switching driver that switches the direction of the current supplied to the load exceeds a reference voltage. In the limiting circuit, a current detection resistor inserted in the ground side current path of the forward/inversion switching driver is provided to detect the magnitude of the current flowing to the normal/inversion switching driver, and the voltage generated in the current detection resistor is provided. 1. A current limiting circuit for a normal/inverting switching driver, characterized in that by applying this voltage to a comparison circuit, this voltage is compared with the reference voltage to generate a control signal that limits the current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985105527U JPS6214998U (en) | 1985-07-12 | 1985-07-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985105527U JPS6214998U (en) | 1985-07-12 | 1985-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6214998U true JPS6214998U (en) | 1987-01-29 |
Family
ID=30980041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985105527U Pending JPS6214998U (en) | 1985-07-12 | 1985-07-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6214998U (en) |
-
1985
- 1985-07-12 JP JP1985105527U patent/JPS6214998U/ja active Pending
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