JPS599821A - Relay drive circuit - Google Patents
Relay drive circuitInfo
- Publication number
- JPS599821A JPS599821A JP11691882A JP11691882A JPS599821A JP S599821 A JPS599821 A JP S599821A JP 11691882 A JP11691882 A JP 11691882A JP 11691882 A JP11691882 A JP 11691882A JP S599821 A JPS599821 A JP S599821A
- Authority
- JP
- Japan
- Prior art keywords
- relay
- drive circuit
- load
- relay drive
- power supply
- 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】 より駆動する場合のリレー駆動回路に関する。[Detailed description of the invention] The present invention relates to a relay drive circuit for driving more than one drive.
第１図によりこの種のリレー駆動回路の従来例について
説明する。図において１は電源回路であり、■は直流電
源、Ｒ１は電源の内部抵抗を示し、２はリレーであシ、
ＬはリレースイッチＳのオン・オフを行うためのリレー
コイル、Ｒ ２ ｕ ！ＪレーコイルＬの直流抵抗分を
示す。３はリレー２のオン又はオフを行うだめのスイッ
チ、４は他の負荷を表わしている。このようなリレー駆
動回路において、電“源回路１の内部抵抗Ｒ１がリレー
コイルＬの直流抵抗分Ｒ２と比べて無視できない値であ
る場合、他の負荷４に印カロされる電圧は、スイッチ３
がオ，フの時、負荷４の抵抗値が内部抵抗Ｒ１に比べて
無視できる値であるとするとこの内部抵抗Ｒ１による電
圧降下は無視できるので電源電圧Ｖとなるが、スイッチ
３がオンとなると、ＶＸＲ２÷（ Ｒ１＋ Ｒ２ ）と
なる。したがって、負荷４が例えば表示ランノのような
場合、リレーがオン・オフする度にその明るさが変化し
てしまうことになシ、極゛めて不都合なことになる。A conventional example of this type of relay drive circuit will be explained with reference to FIG. In the figure, 1 is a power supply circuit, ■ is a DC power supply, R1 is the internal resistance of the power supply, 2 is a relay,
L is a relay coil for turning on and off the relay switch S, R 2 u! This shows the DC resistance of the J-ray coil L. 3 represents a switch for turning on or off the relay 2, and 4 represents another load. In such a relay drive circuit, if the internal resistance R1 of the power supply circuit 1 is a value that cannot be ignored compared to the DC resistance R2 of the relay coil L, the voltage applied to the other load 4 is
If the resistance value of the load 4 is negligible compared to the internal resistance R1 when the switch is off and off, the voltage drop due to this internal resistance R1 can be ignored, so the power supply voltage is V, but when the switch 3 is turned on, , VXR2÷(R1+R2). Therefore, when the load 4 is a display lamp, for example, the brightness changes each time the relay is turned on and off, which is extremely inconvenient.
本発明はこのような事情に鑑み、リレー駆動回路にリレ
ーと実質的に等しい負荷を設け、リレーがオフ状態の時
にはこの負荷に電源回路の電圧が印加されるように構成
することにより、このような不都合を解決するようにし
たものである。In view of these circumstances, the present invention provides a relay drive circuit with a load substantially equal to that of the relay, and is configured such that the voltage of the power supply circuit is applied to this load when the relay is in the OFF state. This was designed to solve these inconveniences.
第２図に本発明の実施例を示す。すなわち、この実施例
はリレー２をオン又はオフするだめの手段として１回路
２接点のスイッチ３′を用い、一方の端子ａに’）Ｖ−
２の負荷、すなわちリレーコイルＬの直流抵抗分Ｒ２と
実質的に等しい負荷Ｒ２′を接続し、他方の端子すにリ
レー２を接続するようにしている。リレー駆動回路をこ
のように構成することによりスイッチ３′が端子ａに接
続している時、他の負荷４に印加される電圧は、ｖｘＲ
２′÷（Ｒ＋ ＋ Ｒ２／）となシＲ２＝Ｒ２’である
から、スイッチ了が端子すに接続している時の負荷４に
印加される電圧ＶＸＲ２÷（ＲＬ＋Ｒ２）と等しくなシ
、したがってリレー２がオン・オフしても負荷４に印加
される電圧は変動しないことになる。FIG. 2 shows an embodiment of the present invention. That is, in this embodiment, a switch 3' with one circuit and two contacts is used as a means for turning on or off the relay 2, and one terminal a is connected to the terminal a.
2, that is, a load R2' substantially equal to the DC resistance R2 of the relay coil L, and the relay 2 is connected to the other terminal. By configuring the relay drive circuit in this way, when the switch 3' is connected to the terminal a, the voltage applied to the other load 4 is vxR
2' ÷ (R+ + R2/) Since R2 = R2', the voltage applied to the load 4 when the switch terminal is connected to the terminal is equal to VXR2 ÷ (RL + R2), therefore, Even if the relay 2 is turned on or off, the voltage applied to the load 4 will not change.
以上、説明したように本発明はリレー駆動回路にリレー
と実質的に等しい負荷を設け、リレーがオフ状態にある
時にはこの負荷に電源回路の電圧が印加されるように構
成したもので、本発明によれば、リレーがオン・オフし
ても他の負荷に印加される電圧は変動しなくなるので、
特性上（特に過電圧、減電圧特性）からも、また品位の
上からも優れたリレー駆動回路を提供することができる
。As described above, the present invention is configured such that a load substantially equal to the relay is provided in the relay drive circuit, and the voltage of the power supply circuit is applied to this load when the relay is in the OFF state. According to
It is possible to provide a relay drive circuit that is excellent in terms of characteristics (especially overvoltage and undervoltage characteristics) and quality.
第１図はリレー駆動回路の従来例を示す図、第２図は本
発明によるリレー駆動回路の実施例を示す図である。
１・・・電源回路、２・・・リレー、３．３’・・・ス
イッチ、４・・・負、荷、■・・・直流電源、Ｒ１・・
・内部抵抗、Ｒ２・・・直流抵抗分、Ｒ２′・・・負荷
、Ｌ・・・リレーコイル、Ｓ・・・リレースイッチ。FIG. 1 is a diagram showing a conventional example of a relay drive circuit, and FIG. 2 is a diagram showing an embodiment of the relay drive circuit according to the present invention. 1...Power supply circuit, 2...Relay, 3.3'...Switch, 4...Load, load, ■...DC power supply, R1...
・Internal resistance, R2...DC resistance, R2'...Load, L...Relay coil, S...Relay switch.
Claims (1)
ー駆動回路において、リレーと実質的に等しい負荷を設
け、リレーがオフ状態にある時には該負荷に電源回路の
電圧が印加されるように構成したことを特徴とするリレ
ー駆動回路。In a relay drive circuit that drives a relay by a common power supply circuit with other loads, a load substantially equal to the relay is provided, and the voltage of the power supply circuit is applied to the load when the relay is in an OFF state. A relay drive circuit characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11691882A JPS599821A (en) | 1982-07-07 | 1982-07-07 | Relay drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11691882A JPS599821A (en) | 1982-07-07 | 1982-07-07 | Relay drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS599821A true JPS599821A (en) | 1984-01-19 |
Family
ID=14698880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11691882A Pending JPS599821A (en) | 1982-07-07 | 1982-07-07 | Relay drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS599821A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11278037B2 (en) | 2017-09-22 | 2022-03-22 | Conopco Inc. | Composition comprising vegetable oil and apple cider vinegar |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5549943A (en) * | 1978-10-04 | 1980-04-11 | Yamatake Honeywell Co Ltd | Backup power supply testing circuit |
| JPS55136818A (en) * | 1979-04-11 | 1980-10-25 | Nippon Electric Co | Power voltage drop detecting circuit |
-
1982
- 1982-07-07 JP JP11691882A patent/JPS599821A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5549943A (en) * | 1978-10-04 | 1980-04-11 | Yamatake Honeywell Co Ltd | Backup power supply testing circuit |
| JPS55136818A (en) * | 1979-04-11 | 1980-10-25 | Nippon Electric Co | Power voltage drop detecting circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11278037B2 (en) | 2017-09-22 | 2022-03-22 | Conopco Inc. | Composition comprising vegetable oil and apple cider vinegar |
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