JPS642533U - - Google Patents
Info
- Publication number
- JPS642533U JPS642533U JP9782887U JP9782887U JPS642533U JP S642533 U JPS642533 U JP S642533U JP 9782887 U JP9782887 U JP 9782887U JP 9782887 U JP9782887 U JP 9782887U JP S642533 U JPS642533 U JP S642533U
- Authority
- JP
- Japan
- Prior art keywords
- relay
- power supply
- opening
- closing
- circuit
- 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
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Protection Of Static Devices (AREA)
Description
第１図は本考案のリレー接点保護回路を示し、
第２図はその動作を説明するタイミングチヤート
図である。第３図は従来の電源供給回路を説明す
る図である。
２……リレー、Ｓ１……リモート操作スイツチ
、Ｓ２……開閉接点、ＴＲ１……トランジスタ、
ＴＲ２……半導体スイツチ。
Figure 1 shows the relay contact protection circuit of the present invention.
FIG. 2 is a timing chart explaining the operation. FIG. 3 is a diagram illustrating a conventional power supply circuit. 2...Relay, S1...Remote operation switch, S2...Opening/closing contact, TR1...Transistor,
TR2...Semiconductor switch.
Claims (1)
されこの電源供給ラインを開閉するリレーと、こ
のリレーを遠隔的に開閉制御するための時定数を
有すリモート操作スイツチ回路を備えた車載用音
響機器の電源供給回路において、前記リレーの開
閉接点と並列に半導体スイツチを設け、前記リレ
ー開閉接点の閉路動作以前に前記半導体スイツチ
を導通させることを特徴とするリレー接点保護回
路。 An in-vehicle audio equipment equipped with a relay connected to a power supply line that supplies power to an amplifier to open and close this power supply line, and a remote operation switch circuit having a time constant to remotely control the opening and closing of this relay. 1. A relay contact protection circuit, characterized in that, in a power supply circuit, a semiconductor switch is provided in parallel with the opening/closing contact of the relay, and the semiconductor switch is made conductive before the relay opening/closing contact closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9782887U JPS642533U (en) | 1987-06-25 | 1987-06-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9782887U JPS642533U (en) | 1987-06-25 | 1987-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS642533U true JPS642533U (en) | 1989-01-09 |
Family
ID=31323565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9782887U Pending JPS642533U (en) | 1987-06-25 | 1987-06-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS642533U (en) |
-
1987
- 1987-06-25 JP JP9782887U patent/JPS642533U/ja active Pending