JPH01141470U - - Google Patents
Info
- Publication number
- JPH01141470U JPH01141470U JP3928188U JP3928188U JPH01141470U JP H01141470 U JPH01141470 U JP H01141470U JP 3928188 U JP3928188 U JP 3928188U JP 3928188 U JP3928188 U JP 3928188U JP H01141470 U JPH01141470 U JP H01141470U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- detection circuit
- detection
- voltage measurement
- voltage
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Measurement Of Current Or Voltage (AREA)
Description
第１図はこの考案の一実施例を示す接続図、第
２図はこの考案の動作を説明するための波形図、
第３図は従来の技術を説明するための接続図、第
４図は従来の回路の欠点を説明するための波形図
である。
１：入力端子、２：検波回路、５：演算増幅器
、１２：直流阻止用コンデンサ、１３：積分器。
Fig. 1 is a connection diagram showing an embodiment of this invention, Fig. 2 is a waveform diagram for explaining the operation of this invention,
FIG. 3 is a connection diagram for explaining the conventional technique, and FIG. 4 is a waveform diagram for explaining the drawbacks of the conventional circuit. 1: Input terminal, 2: Detection circuit, 5: Operational amplifier, 12: DC blocking capacitor, 13: Integrator.
Claims (1)
自乗平均し、交流入力電圧信号の実効値に対応す
る直流電圧を出力する交流電圧測定回路において
、 Ｂ 上記検波回路を構成する演算増幅器の出力端
子と整流回路との間に接続した直流阻止用コンデ
ンサと、 Ｃ この直流阻止用コンデンサに蓄積される直流
分を積分し、その積分出力を上記演算増幅器の入
力端子に負帰還する積分器と、 を備えて成る交流電圧測定回路。[Scope of Claim for Utility Model Registration] A. A detection circuit and an AC voltage measurement circuit that takes the root mean square of the detection output signal of the detection circuit and outputs a DC voltage corresponding to the effective value of the AC input voltage signal, B. The above-mentioned detection circuit. A DC blocking capacitor connected between the output terminal of the operational amplifier and the rectifying circuit constituting C. An AC voltage measurement circuit comprising an integrator that provides negative feedback, and
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3928188U JPH01141470U (en) | 1988-03-24 | 1988-03-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3928188U JPH01141470U (en) | 1988-03-24 | 1988-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01141470U true JPH01141470U (en) | 1989-09-28 |
Family
ID=31265791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3928188U Pending JPH01141470U (en) | 1988-03-24 | 1988-03-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01141470U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5396650A (en) * | 1977-02-02 | 1978-08-24 | Nec Corp | Automatic adjustment circuit for offset voltage |
| JPS6230473U (en) * | 1985-08-05 | 1987-02-24 |
-
1988
- 1988-03-24 JP JP3928188U patent/JPH01141470U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5396650A (en) * | 1977-02-02 | 1978-08-24 | Nec Corp | Automatic adjustment circuit for offset voltage |
| JPS6230473U (en) * | 1985-08-05 | 1987-02-24 |
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