JPS60111111U - differential amplifier circuit - Google Patents
differential amplifier circuitInfo
- Publication number
- JPS60111111U JPS60111111U JP20046283U JP20046283U JPS60111111U JP S60111111 U JPS60111111 U JP S60111111U JP 20046283 U JP20046283 U JP 20046283U JP 20046283 U JP20046283 U JP 20046283U JP S60111111 U JPS60111111 U JP S60111111U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- amplifier circuit
- base
- differential amplifier
- power supply
- 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
Landscapes
- Amplifiers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来回路の一例の回路図、第２図乃至第４図は
本考案回路の第１乃至第３実施例の回路図である。
１・・・映像信号入力端子、２・・・π℃電圧出力端子
、３・・・電源電圧端子、Ｒ１，Ｒ２・・・バイアス抵
抗、Ｒ３，Ｒ３ａ、 Ｒ３ｂ・・・充電抵抗、Ｒ６・・
・放電抵抗、Ｃ１，２，Ｃ１ａ、Ｃ２ａ、Ｃ１ｂ、Ｃ２
ｂ・・・平滑用コンデンサ、Ｑ□〜Ｑ３・・・トランジ
スタ、■・・・定電流源、Ｄ・・・ダイオード。FIG. 1 is a circuit diagram of an example of a conventional circuit, and FIGS. 2 to 4 are circuit diagrams of first to third embodiments of the circuit of the present invention. 1... Video signal input terminal, 2... π°C voltage output terminal, 3... Power supply voltage terminal, R1, R2... Bias resistor, R3, R3a, R3b... Charging resistor, R6...
・Discharge resistance, C1, 2, C1a, C2a, C1b, C2
b... Smoothing capacitor, Q□~Q3... Transistor, ■... Constant current source, D... Diode.
Claims (1)
一方のトランジスタのベースを、電源トアースの間に抵
ｙ。、Ｒ□の順で直列に接続された２個の抵抗Ｒ２，Ｒ
１の接続点に接続し、他方のトランジスタのベースに入
力電圧を平滑化された電圧を供給して該一方或いは他方
のトランジスタ、のコレクタより差動出力を取出す差動
増幅回路において、上記入力電圧を平滑化するコンデン
サを２個有し、一方のコンデンサＣ□を上記他方のトラ
ンジスタのベースとアースとの間に設ける一方、他方の
コンデンサＣ２を上記他方のトランジスタのベースと上
記電源との間に設け、Ｃ□／ Ｃ２／ ≠Ｒ２／ Ｒ１
なる関係を満足するようにそれらの容量値を設定してな
る差動増幅回路。It has two transistors whose emitters are commonly connected,
Connect the base of one transistor to a resistor between the power supply and ground. , R□, two resistors R2 and R connected in series in the order
In a differential amplifier circuit that is connected to a connection point of one transistor, supplies a smoothed input voltage to the base of the other transistor, and outputs a differential output from the collector of the one transistor or the other transistor, the input voltage is One capacitor C□ is provided between the base of the other transistor and the ground, and the other capacitor C2 is provided between the base of the other transistor and the power supply. Setting, C□/C2/ ≠R2/ R1
A differential amplifier circuit is created by setting these capacitance values to satisfy the following relationship.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20046283U JPS60111111U (en) | 1983-12-28 | 1983-12-28 | differential amplifier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20046283U JPS60111111U (en) | 1983-12-28 | 1983-12-28 | differential amplifier circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60111111U true JPS60111111U (en) | 1985-07-27 |
Family
ID=30761336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20046283U Pending JPS60111111U (en) | 1983-12-28 | 1983-12-28 | differential amplifier circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60111111U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52135653A (en) * | 1976-05-10 | 1977-11-12 | Hitachi Ltd | Differential amplifier |
-
1983
- 1983-12-28 JP JP20046283U patent/JPS60111111U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52135653A (en) * | 1976-05-10 | 1977-11-12 | Hitachi Ltd | Differential amplifier |
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