JPS62147919U - - Google Patents
Info
- Publication number
- JPS62147919U JPS62147919U JP3507786U JP3507786U JPS62147919U JP S62147919 U JPS62147919 U JP S62147919U JP 3507786 U JP3507786 U JP 3507786U JP 3507786 U JP3507786 U JP 3507786U JP S62147919 U JPS62147919 U JP S62147919U
- Authority
- JP
- Japan
- Prior art keywords
- operational amplifier
- output terminal
- capacitor
- transformer
- input
- 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
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Amplifiers (AREA)
Description
第１図は本考案に係わる信号入力回路の一実施
例の接続図、第２図は第１図回路の周波数特性を
示す図、第３図は従来回路の一例の接続図である
。
ＣＴ…変成器、ＯＰ…演算増幅器、Ｒ１，Ｒ２
…抵抗素子、Ｃ…コンデンサ。
FIG. 1 is a connection diagram of an embodiment of a signal input circuit according to the present invention, FIG. 2 is a diagram showing frequency characteristics of the circuit of FIG. 1, and FIG. 3 is a connection diagram of an example of a conventional circuit. CT...transformer, OP...operational amplifier, R1, R2
...Resistance element, C...Capacitor.
Claims (1)
変成器の二次巻線に直流分遮断用のコンデンサを
介してその入力端子が接続された演算増幅器、一
端が前記変成器の二次巻線とコンデンサとの接続
点に接続され他端が演算増幅器の出力端子に接続
された電流・電圧変換用の抵抗素子、一端が前記
コンデンサと演算増幅器の入力端子との接続点に
接続され他端が演算増幅器の出力端子に接続され
た直流分遮断用の抵抗素子よりなり、この演算増
幅器の出力端子より前記入力信号に対応した電圧
を取出すようにした信号入力回路。 A transformer whose primary winding is supplied with an input signal, an operational amplifier whose input terminal is connected to the secondary winding of this transformer via a DC blocking capacitor, and one end of which is connected to the secondary winding of the transformer. a resistance element for current/voltage conversion connected to the connection point between the line and the capacitor and the other end connected to the output terminal of the operational amplifier; one end connected to the connection point between the capacitor and the input terminal of the operational amplifier and the other end A signal input circuit comprising a resistor element for cutting off a DC component connected to an output terminal of an operational amplifier, and a voltage corresponding to the input signal is extracted from the output terminal of the operational amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3507786U JPS62147919U (en) | 1986-03-11 | 1986-03-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3507786U JPS62147919U (en) | 1986-03-11 | 1986-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62147919U true JPS62147919U (en) | 1987-09-18 |
Family
ID=30844234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3507786U Pending JPS62147919U (en) | 1986-03-11 | 1986-03-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62147919U (en) |
-
1986
- 1986-03-11 JP JP3507786U patent/JPS62147919U/ja active Pending
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