JPS61117544U - - Google Patents
Info
- Publication number
- JPS61117544U JPS61117544U JP19787284U JP19787284U JPS61117544U JP S61117544 U JPS61117544 U JP S61117544U JP 19787284 U JP19787284 U JP 19787284U JP 19787284 U JP19787284 U JP 19787284U JP S61117544 U JPS61117544 U JP S61117544U
- Authority
- JP
- Japan
- Prior art keywords
- connection point
- diode
- viewed
- series
- diodes
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 5
- 101150099190 ARR3 gene Proteins 0.000 description 1
- 101100324465 Caenorhabditis elegans arr-1 gene Proteins 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
Description
第１図はこの考案の過電圧保護回路の一実施例
を示す接続図、第２図は交流異常電圧に対して、
この考案の過電圧保護回路と従来の過電圧保護回
路による電流の発生状態を示す波形図、第３図は
従来の過電圧保護回路の基本的な一例を示す接続
図、第４図は２個のガスアレスタを使用した場合
の放電開始電圧の差と、線間電圧の発生との関係
を示す特性図である。
図において、Ａｒｒ１〜Ａｒｒ３はガスアレス
タ、Ｄ１〜Ｄ６はダイオード、Ｖａ１〜Ｖａ３は
バリスタ、Ｒ１とＲ２は正極性のサーミスタを示
す。
Fig. 1 is a connection diagram showing an embodiment of the overvoltage protection circuit of this invention, and Fig. 2 shows the connection diagram for an abnormal AC voltage.
Waveform diagrams showing current generation states by the overvoltage protection circuit of this invention and the conventional overvoltage protection circuit, Figure 3 is a connection diagram showing a basic example of the conventional overvoltage protection circuit, and Figure 4 shows two gas arresters. FIG. 3 is a characteristic diagram showing the relationship between the difference in discharge starting voltage and the generation of line voltage when using the following. In the figure, Arr1 to Arr3 are gas arresters, D1 to D6 are diodes, Va1 to Va3 are varistors, and R1 and R2 are positive polarity thermistors.
Claims (1)
同極性となるように直列接続された２個のダイオ
ードと、これらのダイオードと逆極性の関係で前
記線路間に接続され、かつ第２の接続点からみて
同極性となるように直列接続された２個のダイオ
ードと、前記第１と第２の接続点の間に接続され
た１個のガスアレスタと、前記第１の接続点から
みて前記ダイオードと同極性となるようにこの第
１の接続点にその一端が接続され、他端がアース
されたダイオードと、同じく前記第２の接続点か
らみて前記ダイオードと同極性となるようにこの
第２の接続点にその一端が接続され、他端がアー
スされたダイオードと、前記線路の被保護機器側
にそれぞれ直列に接続された正極性のサーミスタ
とを備えたことを特徴とする過電圧保護回路。 two diodes connected in series between the lines and having the same polarity as viewed from the first connection point; and a second diode connected between the lines with opposite polarity to these diodes. Two diodes connected in series so as to have the same polarity when viewed from the connection point, one gas arrester connected between the first and second connection points, and when viewed from the first connection point A diode, one end of which is connected to the first connection point so as to have the same polarity as the diode, and the other end of which is grounded; Overvoltage protection comprising: a diode whose one end is connected to the second connection point and whose other end is grounded; and a positive thermistor connected in series to the protected equipment side of the line. circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984197872U JPH0419950Y2 (en) | 1984-12-29 | 1984-12-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984197872U JPH0419950Y2 (en) | 1984-12-29 | 1984-12-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61117544U true JPS61117544U (en) | 1986-07-24 |
| JPH0419950Y2 JPH0419950Y2 (en) | 1992-05-07 |
Family
ID=30756397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984197872U Expired JPH0419950Y2 (en) | 1984-12-29 | 1984-12-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0419950Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56148131A (en) * | 1980-04-21 | 1981-11-17 | Nippon Telegraph & Telephone | Lateral surge absorbing circuit |
| JPS56156336U (en) * | 1980-04-22 | 1981-11-21 |
-
1984
- 1984-12-29 JP JP1984197872U patent/JPH0419950Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56148131A (en) * | 1980-04-21 | 1981-11-17 | Nippon Telegraph & Telephone | Lateral surge absorbing circuit |
| JPS56156336U (en) * | 1980-04-22 | 1981-11-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0419950Y2 (en) | 1992-05-07 |
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