JPS606330U - differential amplifier - Google Patents
differential amplifierInfo
- Publication number
- JPS606330U JPS606330U JP19854583U JP19854583U JPS606330U JP S606330 U JPS606330 U JP S606330U JP 19854583 U JP19854583 U JP 19854583U JP 19854583 U JP19854583 U JP 19854583U JP S606330 U JPS606330 U JP S606330U
- Authority
- JP
- Japan
- Prior art keywords
- differential amplifier
- constant current
- current circuit
- impedance element
- emitter
- 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
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図は従来の差動増幅器の回路図、第２図は本考案の
差動増幅器の回路図で第３図そつの特性図、第４図は本
考案の差動増幅器の他の実施例の回路図をそれぞれ示す
。
Ｑ１〜Ｑ４・・・・・・差動用トランジスタ、Ｑ５＋
Ｑ６・・・・・・定電流回路用トランジスタ、Ｒ１，Ｒ
２・・・・・・負荷抵抗、Ｒ３，Ｒ１・・・・・・定電
流回路のエミッタ抵抗、１０・・・・・・定電流回路、
１．２・・・・・・交流信号入力端子、３，４・・・・
・・電源供給端子、５．６・・・・・・交流信号出力端
子、Ｒピ・・・・・エミッタ抵抗（第１の交流インピー
ダンス）、Ｃ１・・・・・・コンデン？（第２（７）低
交流インピーダンス）、ＺＤｌ・・・・・・ツェナーダ
イオード（第２の低交流インピーダンス）、ｚＤ２・・
・・・・ツェナーダイオード。
補正 昭５９．１．２０
実用新案登録請求の範囲を次のように補正する。
Ｏ実用新案登録請求の範囲
１ エミッタ結合された一対のトランジスタと、前記一
対のトランジスタのベースに交流信号を印加するための
端子と、前記一対のトランジスタのコレクタの少なくと
も一方の結合された交流出力信号を取り出すためめ出力
端子と、結合された前記エミッタに共通接続された定電
流回路とを具備する差動増幅器において、前記エミッタ
と前記定電流回路との間に前記定電流回路の交流インピ
ーダンスより低い第１の交流イン゛ピーダンス素子を挿
入し、該交流インピーダンス素子との前記定電流回路と
の接続点を第２の低交流インピーダンス素子を介して交
流的に接地することによって、前記交流出力信号の歪率
を２ 実用新案登録請求め範囲第１項記載の差動増幅器
において、前記定電流回路は、エミッタ、ベース間に一
定電圧がバイアスされたトランジスタから成りこ前記第
１め交流インピーダンス素子は抵抗から成ることを特徴
とする差動増幅器。
３ 実用新案登録請求の一範囲第２項記載の差動増幅器
において、前記第２の低交流インピーダンス素子はツェ
ナーダイオードから成ることを特徴とする差動増幅器。Figure 1 is a circuit diagram of a conventional differential amplifier, Figure 2 is a circuit diagram of a differential amplifier of the present invention, Figure 3 is a characteristic diagram, and Figure 4 is another embodiment of the differential amplifier of the present invention. The circuit diagrams are shown respectively. Q1~Q4...Differential transistor, Q5+
Q6...Transistor for constant current circuit, R1, R
2... Load resistance, R3, R1... Emitter resistance of constant current circuit, 10... Constant current circuit,
1.2...AC signal input terminal, 3,4...
...Power supply terminal, 5.6... AC signal output terminal, R pin... Emitter resistance (first AC impedance), C1... Capacitor? (2nd (7) low AC impedance), ZDl... Zener diode (2nd low AC impedance), zD2...
...Zener diode. Amendment January 20, 1982 The scope of claims for utility model registration is amended as follows. O Utility Model Registration Claim 1 A pair of emitter-coupled transistors, a terminal for applying an AC signal to the bases of the pair of transistors, and a coupled AC output signal of at least one of the collectors of the pair of transistors. and a constant current circuit commonly connected to the combined emitters, wherein an AC impedance lower than the AC impedance of the constant current circuit is provided between the emitter and the constant current circuit. By inserting a first AC impedance element and grounding the connection point between the AC impedance element and the constant current circuit through a second low AC impedance element, the AC output signal is In the differential amplifier according to claim 1, the constant current circuit is composed of a transistor biased with a constant voltage between the emitter and the base, and the first AC impedance element is a resistor. A differential amplifier comprising: 3. The differential amplifier according to claim 2, wherein the second low AC impedance element is a Zener diode.
Claims (1)
対のトランジスタのベースに交流信号を印加するための
端子と、前記一対のトランジスタのコレクタの少なくと
も一方に結合された交流出力信号を取り出すための出力
端子と、結合された前記エミッタに共通接続された定電
流回路とを具備する差動増幅器において、前記エミッタ
と前記定電流回路との間に前記定電流回路の交流インピ
ーダンスより低い第１の交流インビ、−タンス素子を挿
入し、該交流インピーダンス素子と前記定電流回路との
接続点を第２の抵交流インピーダンス素子を介して交流
的に接地することによって、前記交流出力信号の歪率を
改善したことを特徴とする差動増幅器。 ２ 実用新案登録請求の範囲第１項記載の差動増幅器に
おいて、前記定電流回路は、エミッタ、ベース間に一定
電圧がバイアスされたトランジスタから成り、前記第１
の交流インピーダンス素子は抵抗から成ることを特徴と
する差動増幅器。 ３ 実用新案登録請求の範囲第２項記載の差動増幅器に
おいて、前記第２の低交流インピーダンス素子はツェナ
ーダイオードから成ることを特徴とする差動増幅器。[Claims for Utility Model Registration] 1. A pair of emitter-coupled transistors, a terminal for applying an AC signal to the bases of the pair of transistors, and an AC output coupled to at least one of the collectors of the pair of transistors. In a differential amplifier comprising an output terminal for extracting a signal, and a constant current circuit commonly connected to the combined emitters, an AC impedance of the constant current circuit is connected between the emitter and the constant current circuit. By inserting a low first AC impedance element and grounding the connection point between the AC impedance element and the constant current circuit via a second resistance AC impedance element, the AC output signal is A differential amplifier characterized by improved distortion rate. 2 Utility Model Registration In the differential amplifier according to claim 1, the constant current circuit comprises a transistor biased with a constant voltage between an emitter and a base, and the first
A differential amplifier characterized in that the alternating current impedance element of the differential amplifier consists of a resistor. 3. Utility Model Registration The differential amplifier according to claim 2, wherein the second low AC impedance element comprises a Zener diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19854583U JPS606330U (en) | 1983-12-26 | 1983-12-26 | differential amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19854583U JPS606330U (en) | 1983-12-26 | 1983-12-26 | differential amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS606330U true JPS606330U (en) | 1985-01-17 |
| JPS6228087Y2 JPS6228087Y2 (en) | 1987-07-18 |
Family
ID=30424111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19854583U Granted JPS606330U (en) | 1983-12-26 | 1983-12-26 | differential amplifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS606330U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03122449A (en) * | 1989-10-03 | 1991-05-24 | Zexel Corp | Air outlet pipe assembly of air conditioner |
| JP5759644B1 (en) * | 2015-01-30 | 2015-08-05 | ソニックス株式会社 | Differential amplifier circuit |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20240018737A (en) | 2022-08-02 | 2024-02-14 | 한국철도기술연구원 | Downdraft air conditioning system |
-
1983
- 1983-12-26 JP JP19854583U patent/JPS606330U/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03122449A (en) * | 1989-10-03 | 1991-05-24 | Zexel Corp | Air outlet pipe assembly of air conditioner |
| JP2524226B2 (en) * | 1989-10-03 | 1996-08-14 | 株式会社ゼクセル | Pipe unit for opening and closing air conditioners |
| JP5759644B1 (en) * | 2015-01-30 | 2015-08-05 | ソニックス株式会社 | Differential amplifier circuit |
| WO2016121943A1 (en) * | 2015-01-30 | 2016-08-04 | Ｓｉｍｐｌｅｘ Ｑｕａｎｔｕｍ株式会社 | Differential amplification circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6228087Y2 (en) | 1987-07-18 |
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