JPH0421029U - - Google Patents
Info
- Publication number
- JPH0421029U JPH0421029U JP6164290U JP6164290U JPH0421029U JP H0421029 U JPH0421029 U JP H0421029U JP 6164290 U JP6164290 U JP 6164290U JP 6164290 U JP6164290 U JP 6164290U JP H0421029 U JPH0421029 U JP H0421029U
- Authority
- JP
- Japan
- Prior art keywords
- relay
- contact
- relay contact
- output terminal
- pair
- 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
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Keying Circuit Devices (AREA)
- Relay Circuits (AREA)
Description
第１図はこの考案の一実施例を示す接続図、第
２図は従来の技術を説明するための接続図、第３
図は従来の技術の欠点を説明するための接続図で
ある。
１……直流電源、ＳＷ……双極切替回路、Ｋ１
，Ｋ２……リレー接点、ａ，ｂ……固定接点、Ｄ
１〜Ｄ４……逆流阻止ダイオード、Ｃｏ……平滑
用コンデンサ、Ｔ１，Ｔ２……出力端子。
Fig. 1 is a connection diagram showing an embodiment of this invention, Fig. 2 is a connection diagram for explaining the conventional technology, and Fig. 3 is a connection diagram showing an embodiment of this invention.
The figure is a connection diagram for explaining the drawbacks of the conventional technology. 1...DC power supply, SW...bipolar switching circuit, K1
, K 2 ... Relay contact, a, b... Fixed contact, D
1 to D4 ... Backflow blocking diode, Co... Smoothing capacitor, T1 , T2 ... Output terminal.
Claims (1)
一対のリレー接点を接続し、この一対のリレー接
点によつて出力端子の電圧の極性を反転させる双
極切替回路を具備した極性切替回路において、 上記リレー接点に接離する固定接点に直列に逆
流阻止ダイオードを接続し、リレー接点が転換す
るときリレー接点と固定接点との間で生じる放電
を阻止する構造としたリレー接点保護回路。[Claims for Utility Model Registration] A bipolar switching circuit in which a pair of relay contacts is connected between a DC power source and an output terminal to which a load is connected, and the polarity of the voltage at the output terminal is reversed by the pair of relay contacts. In the polarity switching circuit equipped with the above, a reverse current blocking diode is connected in series with the fixed contact that connects and separates from the relay contact, and the structure is designed to prevent discharge that occurs between the relay contact and the fixed contact when the relay contact changes. Relay contact protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6164290U JPH0421029U (en) | 1990-06-11 | 1990-06-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6164290U JPH0421029U (en) | 1990-06-11 | 1990-06-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0421029U true JPH0421029U (en) | 1992-02-21 |
Family
ID=31590074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6164290U Pending JPH0421029U (en) | 1990-06-11 | 1990-06-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0421029U (en) |
-
1990
- 1990-06-11 JP JP6164290U patent/JPH0421029U/ja active Pending