JPS5950536U - Reverse connection prevention device for power supply - Google Patents
Reverse connection prevention device for power supplyInfo
- Publication number
- JPS5950536U JPS5950536U JP14772182U JP14772182U JPS5950536U JP S5950536 U JPS5950536 U JP S5950536U JP 14772182 U JP14772182 U JP 14772182U JP 14772182 U JP14772182 U JP 14772182U JP S5950536 U JPS5950536 U JP S5950536U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- reverse connection
- relay
- polarity selection
- power
- 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
- Continuous-Control Power Sources That Use Transistors (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は説明のためのプリント板とメンテナンスツール
の接続状態図、第２・図は従来のメンテナンスツールの
電源回路図、第３図及び第４図は夫々本考案の実施例を
示す回路構成図である。
１はプリン［・板、２はメンテナンスツール、３は電源
ケーブル、２３は電子部品、２４は極性選択部、２５は
切換部。Fig. 1 is a connection state diagram between a printed board and a maintenance tool for explanation, Fig. 2 is a power supply circuit diagram of a conventional maintenance tool, and Figs. 3 and 4 are circuit configurations showing embodiments of the present invention, respectively. It is a diagram. 1 is a printer board, 2 is a maintenance tool, 3 is a power cable, 23 is an electronic component, 24 is a polarity selection section, and 25 is a switching section.
Claims (2)
ブル、コネクタを介してプリント板に接続し、このプリ
ント板より電源供給されるようなものに於て、前記メン
テナンスツールの電源入力側端子間に、順方向に接続さ
れたダイオードとリレーとの直列回路によってなる極性
選択部を接続し、この極性選択部のリレー接点よりなる
切換部を前記電子部品への電源供給路に設けて構成した
ことを特徴とする電源の逆接続防止装置。(1) When a maintenance tool consisting of an electronic component is connected to a printed board via a power cable or a connector, and power is supplied from the printed board, the maintenance tool is connected between the power input side terminals of the maintenance tool. A polarity selection section formed by a series circuit of a diode and a relay connected in the same direction is connected, and a switching section formed of a relay contact of the polarity selection section is provided in a power supply path to the electronic component. Reverse connection prevention device for power supply.
を逆並列接続して構成し、且つ切換部は前記極性選択
部の２個の各リレーの接点を夫々２接点とし、各リレー
の接点どうしが直列になるよ、うに接続して構成したこ
とを特徴とする実用新案登録請求の範囲第１項記載の電
源の逆接続防止装置。(2) The polarity selection section is a series circuit of a diode and a relay 7
are configured by connecting them in antiparallel, and the switching unit is configured by connecting each of the two relays of the polarity selection unit with two contacts each, and the contacts of each relay are connected in series. A device for preventing reverse connection of a power source as set forth in claim 1 of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14772182U JPS5950536U (en) | 1982-09-28 | 1982-09-28 | Reverse connection prevention device for power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14772182U JPS5950536U (en) | 1982-09-28 | 1982-09-28 | Reverse connection prevention device for power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5950536U true JPS5950536U (en) | 1984-04-03 |
Family
ID=30328421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14772182U Pending JPS5950536U (en) | 1982-09-28 | 1982-09-28 | Reverse connection prevention device for power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5950536U (en) |
-
1982
- 1982-09-28 JP JP14772182U patent/JPS5950536U/en active Pending
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