JPH0263464U - - Google Patents
Info
- Publication number
- JPH0263464U JPH0263464U JP14209988U JP14209988U JPH0263464U JP H0263464 U JPH0263464 U JP H0263464U JP 14209988 U JP14209988 U JP 14209988U JP 14209988 U JP14209988 U JP 14209988U JP H0263464 U JPH0263464 U JP H0263464U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- logarithmic conversion
- conversion circuit
- circuit
- current error
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Description
第１図は本考案の一実施例の回路図、第２図は
従来の検波直線性補正回路の一例を示す回路図で
ある。
１…対数変換回路、２…逆対数変換回路、３，
４…オペアンプ、５…対数変換トランジスタ、６
…エミツタ飽和電流誤差補正用トランジスタ、７
，８…オペアンプ、９…対数変換トランジスタ、
１０…エミツタ飽和電流誤差補正用トランジスタ
、１１…マルチプライヤ、１２…入力及び電流―
電圧変換用オペアンプ、１３…恒温槽、Ｒ１〜Ｒ
１４…抵抗、ＶＲ１，ＶＲ２…基準電圧印加端子
、ＩＮ…入力端子、ＯＵＴ…出力端子、ＶＲ…可
変抵抗、Ｒ…抵抗、ＶＲ…基準電圧印加端子。
FIG. 1 is a circuit diagram of an embodiment of the present invention, and FIG. 2 is a circuit diagram showing an example of a conventional detection linearity correction circuit. 1... Logarithmic conversion circuit, 2... Anti-logarithmic conversion circuit, 3,
4... operational amplifier, 5... logarithmic conversion transistor, 6
...Emitter saturation current error correction transistor, 7
, 8... operational amplifier, 9... logarithmic conversion transistor,
10... Transistor for emitter saturation current error correction, 11... Multiplier, 12... Input and current -
Operational amplifier for voltage conversion, 13... constant temperature oven, R 1 ~ R
14 ...Resistor, VR1 , VR2 ...Reference voltage application terminal, IN...Input terminal, OUT...Output terminal, VR...Variable resistor, R...Resistor, VR...Reference voltage application terminal.
Claims (1)
電流誤差補正用トランジスタで構成した対数変換
回路に、他の対数変換トランジスタとそのエミツ
タ飽和電流誤差補正用トランジスタとで構成した
逆対数変換回路を接続し、前記対数変換回路に入
力された信号を逆対数変換回路を通して出力する
ように構成したことを特徴とする検波直線性補正
回路。 A logarithmic conversion circuit composed of one logarithmic conversion transistor and its emitter saturation current error correction transistor is connected to an antilogarithmic conversion circuit composed of another logarithmic conversion transistor and its emitter saturation current error correction transistor. A detection linearity correction circuit characterized in that the detection linearity correction circuit is configured to output a signal input to the conversion circuit through an anti-logarithmic conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14209988U JPH0263464U (en) | 1988-10-31 | 1988-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14209988U JPH0263464U (en) | 1988-10-31 | 1988-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0263464U true JPH0263464U (en) | 1990-05-11 |
Family
ID=31407756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14209988U Pending JPH0263464U (en) | 1988-10-31 | 1988-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0263464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8972474B2 (en) | 2011-11-01 | 2015-03-03 | Mitsubishi Electric Corporation | Logarithmic/inverse-logarithmic conversion circuit |
-
1988
- 1988-10-31 JP JP14209988U patent/JPH0263464U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8972474B2 (en) | 2011-11-01 | 2015-03-03 | Mitsubishi Electric Corporation | Logarithmic/inverse-logarithmic conversion circuit |