JPS643210U - - Google Patents
Info
- Publication number
- JPS643210U JPS643210U JP9577787U JP9577787U JPS643210U JP S643210 U JPS643210 U JP S643210U JP 9577787 U JP9577787 U JP 9577787U JP 9577787 U JP9577787 U JP 9577787U JP S643210 U JPS643210 U JP S643210U
- Authority
- JP
- Japan
- Prior art keywords
- input
- change
- current
- amplifying elements
- feedback resistor
- 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
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Amplifiers (AREA)
Description
第１図は本考案の構成を示すブロツク図、第２
図は本考案の第１実施例を示す回路図、第３図及
び第４図は本考案の第２及び第３の各実施例を示
す回路図、第５図及び第６図は夫々異なる従来例
を示す回路図である。
図面中、１，２は第１及び第２の増幅要素、３
は入力トランジスタ、５は低電流源回路、１０，
１２はフオトダイオード、１３，１４，１５は抵
抗、１６，１７は帰還抵抗である。
Figure 1 is a block diagram showing the configuration of the present invention;
The figure is a circuit diagram showing the first embodiment of the present invention, Figures 3 and 4 are circuit diagrams showing the second and third embodiments of the present invention, and Figures 5 and 6 are respectively different conventional circuit diagrams. FIG. 3 is a circuit diagram showing an example. In the drawing, 1 and 2 are first and second amplification elements, 3
is an input transistor, 5 is a low current source circuit, 10,
12 is a photodiode, 13, 14 and 15 are resistors, and 16 and 17 are feedback resistors.
Claims (1)
続された３つの抵抗により接続すると共に、各抵
抗間の共通接続点を帰還抵抗を介して各々の前記
増幅要素の入力端に接続し、前記増幅要素の入力
トランジスタのエミツタを接地すると共にコレク
タ電流を定電流化することにより前記入力端への
入力電流の変化が前記帰還抵抗を通る電流変化と
して現われるように構成したことを特徴とする差
動入出力形増幅回路。 Connecting the output terminals of two single-input amplifying elements with three resistors connected in series, and connecting the common connection point between each resistor to the input terminal of each of the amplifying elements via a feedback resistor, The difference is characterized in that the emitter of the input transistor of the amplification element is grounded and the collector current is made constant, so that a change in the input current to the input terminal appears as a change in the current passing through the feedback resistor. Dynamic input/output type amplifier circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987095777U JP2519809Y2 (en) | 1987-06-22 | 1987-06-22 | Differential input / output type amplifier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987095777U JP2519809Y2 (en) | 1987-06-22 | 1987-06-22 | Differential input / output type amplifier circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS643210U true JPS643210U (en) | 1989-01-10 |
| JP2519809Y2 JP2519809Y2 (en) | 1996-12-11 |
Family
ID=31320491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987095777U Expired - Lifetime JP2519809Y2 (en) | 1987-06-22 | 1987-06-22 | Differential input / output type amplifier circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2519809Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0818357A (en) * | 1994-06-29 | 1996-01-19 | Nec Corp | Imtermediate frequency amplifier circuit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5526748A (en) * | 1978-08-16 | 1980-02-26 | Toshiba Corp | Voltage-current converter circuit |
| JPS61157108A (en) * | 1984-12-28 | 1986-07-16 | Rohm Co Ltd | Voltage-current converting circuit |
-
1987
- 1987-06-22 JP JP1987095777U patent/JP2519809Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5526748A (en) * | 1978-08-16 | 1980-02-26 | Toshiba Corp | Voltage-current converter circuit |
| JPS61157108A (en) * | 1984-12-28 | 1986-07-16 | Rohm Co Ltd | Voltage-current converting circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0818357A (en) * | 1994-06-29 | 1996-01-19 | Nec Corp | Imtermediate frequency amplifier circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2519809Y2 (en) | 1996-12-11 |
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