JPS6297224A - Relay driving circuit - Google Patents
Relay driving circuitInfo
- Publication number
- JPS6297224A JPS6297224A JP23662785A JP23662785A JPS6297224A JP S6297224 A JPS6297224 A JP S6297224A JP 23662785 A JP23662785 A JP 23662785A JP 23662785 A JP23662785 A JP 23662785A JP S6297224 A JPS6297224 A JP S6297224A
- Authority
- JP
- Japan
- Prior art keywords
- relay
- current
- resistor
- circuit
- switch element
- 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
Landscapes
- Relay Circuits (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、リレー駆動回路に関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to a relay drive circuit.
従来のリレー駆動回路は、第２図の様にトランジスタ等
のスイッチ素子１とリレーのコイル２と電流制限用の抵
抗器３が直列に接続され、両端子間に直流が印加されて
いた。In a conventional relay drive circuit, as shown in FIG. 2, a switching element 1 such as a transistor, a relay coil 2, and a current limiting resistor 3 are connected in series, and a direct current is applied between both terminals.
Ｅ述した従来のリレー駆動回路では、スイッチ素子１が
ＯＮ（導通）になった後のリレーのコイル２に流れる電
流の過渡応答は、リレーのコイル２のインダクタンスと
抵抗器３の抵抗値によって決まり、第３図の実線５のよ
うになり、リレーの感動電流値を越えるのに時間がかか
つている。In the conventional relay drive circuit described above, the transient response of the current flowing through the relay coil 2 after the switch element 1 is turned on (conducting) is determined by the inductance of the relay coil 2 and the resistance value of the resistor 3. , as shown by the solid line 5 in FIG. 3, and it takes a long time to exceed the relay current value.
又、電流は単調増加するので、電流の定常値は必ず感動
電流よりも大きくなってしまうという欠点がある。Furthermore, since the current increases monotonically, there is a drawback that the steady-state value of the current is always larger than the impressive current.
本発明のリレー駆動回路は、スイッチ素子と、このスイ
ッチ素子に直列に接続されるリレーのコ、イルと、前記
スイ・ソチ素子と前記リレーに直列に接続される電流制
限用の抵抗器と、この抵抗器に並列に接続されるコンデ
ンサとを含んで構成される。The relay drive circuit of the present invention includes a switch element, a relay coil connected in series to the switch element, a current limiting resistor connected in series to the switch element and the relay, It is configured to include a capacitor connected in parallel to this resistor.
次に、本発明について図面を参照して説明する６第１図
は本発明の第１の実施例の回路図で、抵抗器３にコンデ
ンサ４を並列に接続しである。本実施例におけるスイッ
チ素子１を導通した後のリレーのコイル２に流れる電流
の過渡応答は、リレーのコイル２のインダクタンスと抵
抗器３の抵抗値とコンデンサ４のキャパシタンスの値に
よっているいろに変化するが、例えば、第３図の点線６
の様にリレーの感動電流値を越すまでの時間を従来の回
路の場合の応答（実線５）より短かくできる。Next, the present invention will be explained with reference to the drawings. 6 FIG. 1 is a circuit diagram of a first embodiment of the present invention, in which a resistor 3 and a capacitor 4 are connected in parallel. In this embodiment, the transient response of the current flowing through the relay coil 2 after the switch element 1 is made conductive varies depending on the inductance of the relay coil 2, the resistance value of the resistor 3, and the capacitance value of the capacitor 4. For example, dotted line 6 in Figure 3
As shown in the figure, the time required to exceed the relay current value can be made shorter than the response of the conventional circuit (solid line 5).
又、リレーのコイル２のインダクタンスと抵抗器３の抵
抗値とコンデンサ４のキャパシタンスの値の組み合せを
変えることにより、第４図のような過渡応答を得ること
ができる。この場合、リレーのコイル２に流れる電流は
一旦感動電流値を越えるので、リレーは動作し、その後
電流値は感動電流値より下がるが、保持電流値より下が
らないなで、定常電流値が感動電流値よりも低いにもか
かわらず、リレーは動作状態を保持することできる。Furthermore, by changing the combination of the inductance of the relay coil 2, the resistance value of the resistor 3, and the capacitance value of the capacitor 4, a transient response as shown in FIG. 4 can be obtained. In this case, the current flowing through coil 2 of the relay once exceeds the moving current value, so the relay operates, and then the current value falls below the moving current value, but it does not fall below the holding current value, and the steady current value changes to the moving current value. The relay can remain operational despite being lower than the value.
第５図（ａ）、（ｂ）、（ｃ）は本発明の第２〜第４の
実施例の回路図である。第５図（ａ）は第１図に示す回
路に抵抗器７を直列に接続した回路、第５図＜ｂ＞はコ
ンデンサ４と抵抗器８の直列接続に抵抗器３を並列に接
続した回路にコイル２とスイッチ１を直列に接続した回
路、第５図（ｃ）は第５（ｂ）に示す回路に抵抗器７を
直列に接続した回路である。このように第１図に示すリ
レー駆動回路に抵抗器７．８を追加することにより、リ
レーのコイル２に流れる電流の過渡応答を多様に変゛化
させることができる。5(a), (b), and (c) are circuit diagrams of second to fourth embodiments of the present invention. Figure 5(a) is a circuit in which resistor 7 is connected in series to the circuit shown in Figure 1, and Figure 5<b> is a circuit in which resistor 3 is connected in parallel to the series connection of capacitor 4 and resistor 8. 5(c) is a circuit in which a resistor 7 is connected in series to the circuit shown in FIG. 5(b). By adding the resistor 7.8 to the relay drive circuit shown in FIG. 1 in this manner, the transient response of the current flowing through the coil 2 of the relay can be varied in various ways.
以上説明したように本発明は、リレーの動作を早めるこ
とができ、又感動電流より少ない定常電流でリレーの動
作を保持させることによ°り回路の消費電流を減少させ
ることができる効果がある。As explained above, the present invention has the effect of speeding up the operation of the relay, and reducing the current consumption of the circuit by maintaining the operation of the relay with a steady current that is lower than the current. .
第１図は、本発明の第１の実施例の回路図、第２図は従
来のリレー駆動回路の回路図、第３図はリレーのコイル
に流れる電流の従来のリレー駆動回路における過渡応答
と、第１図に示す実施例における過渡応答の一例の比較
を示すグラフ、第４図は第１図に示す実施例におけるリ
レーのコイルに流れる電流の過渡応答の一例を示すグラ
フ、第５図（ａ＞、（ｂ）、（ｃ）は本発明の第２〜第
４の実施例の回路図である。
１・・・・・・スイッチ素子、２・・・・−・リレーの
コイル、３・・・・・・電流制限抵抗、４・・・・・・
コンデンサ、５，６・・・・・・リレーのコイル２に流
れる電流の過渡応答。
直歳電房入η ｔす叱嗜θ乗入〃手
１ 図 千２ 回
弄３図Fig. 1 is a circuit diagram of the first embodiment of the present invention, Fig. 2 is a circuit diagram of a conventional relay drive circuit, and Fig. 3 is a transient response of the current flowing through the relay coil in the conventional relay drive circuit. , a graph showing a comparison of an example of the transient response in the embodiment shown in FIG. 1, FIG. 4 a graph showing an example of the transient response of the current flowing through the coil of the relay in the embodiment shown in FIG. a>, (b), and (c) are circuit diagrams of second to fourth embodiments of the present invention. 1... Switch element, 2... Relay coil, 3・・・・・・Current limiting resistor, 4・・・・・・
Capacitor, 5, 6...Transient response of the current flowing through coil 2 of the relay. Naotoshi Denbo entry η tsu scolding θ entry hand
1 figure 1,000 2 times 3 figures
Claims (1)
レーのコイルと、前記スイッチ素子と前記リレーに直列
に接続される電流制限用の抵抗器と、この抵抗器に並列
に接続されるコンデンサとを含むことを特徴とするリレ
ー駆動回路。A switch element, a relay coil connected in series to the switch element, a current limiting resistor connected in series to the switch element and the relay, and a capacitor connected in parallel to the resistor. A relay drive circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23662785A JPS6297224A (en) | 1985-10-22 | 1985-10-22 | Relay driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23662785A JPS6297224A (en) | 1985-10-22 | 1985-10-22 | Relay driving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6297224A true JPS6297224A (en) | 1987-05-06 |
Family
ID=17003428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23662785A Pending JPS6297224A (en) | 1985-10-22 | 1985-10-22 | Relay driving circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6297224A (en) |
-
1985
- 1985-10-22 JP JP23662785A patent/JPS6297224A/en active Pending
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