JPH01142223U - - Google Patents
Info
- Publication number
- JPH01142223U JPH01142223U JP3735488U JP3735488U JPH01142223U JP H01142223 U JPH01142223 U JP H01142223U JP 3735488 U JP3735488 U JP 3735488U JP 3735488 U JP3735488 U JP 3735488U JP H01142223 U JPH01142223 U JP H01142223U
- Authority
- JP
- Japan
- Prior art keywords
- input signal
- isolator
- input
- signal
- ground
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Electronic Switches (AREA)
Description
第１図は本考案の入力信号切換回路の一実施例
を示す回路図、第２図は従来の入力信号切換回路
の回路図、第３図は従来の入力信号切換部の他の
回路例を示す回路図である。
２１……アイソレータ、２２……入力信号切換
手段、１ａ，２ａ……入力信号、１ｇ，２ｇ……
グランド信号。
FIG. 1 is a circuit diagram showing an embodiment of the input signal switching circuit of the present invention, FIG. 2 is a circuit diagram of a conventional input signal switching circuit, and FIG. 3 is a circuit diagram of another conventional input signal switching circuit. FIG. 21...Isolator, 22...Input signal switching means, 1a, 2a...Input signal, 1g, 2g...
ground signal.
Claims (1)
れて両信号間のコモンモードノイズを除去するア
イソレータと、該アイソレータに入力される入力
信号とグランド信号を切り換える入力信号切換手
段とを具備したことを特徴とする入力信号切換回
路。 It is characterized by comprising an isolator that receives an input signal and a ground signal of the input signal and removes common mode noise between the two signals, and an input signal switching means that switches between the input signal and the ground signal that are input to the isolator. Input signal switching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3735488U JPH01142223U (en) | 1988-03-22 | 1988-03-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3735488U JPH01142223U (en) | 1988-03-22 | 1988-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01142223U true JPH01142223U (en) | 1989-09-29 |
Family
ID=31263936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3735488U Pending JPH01142223U (en) | 1988-03-22 | 1988-03-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01142223U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4935761U (en) * | 1972-06-28 | 1974-03-29 | ||
| JPS5025455B1 (en) * | 1970-06-19 | 1975-08-23 | ||
| JPS50116254A (en) * | 1974-02-27 | 1975-09-11 |
-
1988
- 1988-03-22 JP JP3735488U patent/JPH01142223U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5025455B1 (en) * | 1970-06-19 | 1975-08-23 | ||
| JPS4935761U (en) * | 1972-06-28 | 1974-03-29 | ||
| JPS50116254A (en) * | 1974-02-27 | 1975-09-11 |