JPS6037916U - Differential amplifier bias circuit - Google Patents
Differential amplifier bias circuitInfo
- Publication number
- JPS6037916U JPS6037916U JP12857983U JP12857983U JPS6037916U JP S6037916 U JPS6037916 U JP S6037916U JP 12857983 U JP12857983 U JP 12857983U JP 12857983 U JP12857983 U JP 12857983U JP S6037916 U JPS6037916 U JP S6037916U
- Authority
- JP
- Japan
- Prior art keywords
- current
- circuit
- differential amplifier
- generates
- inversion
- 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、従来のバイアス回路を示す回路図、及び第２
図は本考案の一実施例を示す回路図である。
主な図番の説明、１７・・・・・・差動増幅器、２１・
・・・・・基準電流発生回路、２５・・・・・・電流反
転回路。FIG. 1 shows a circuit diagram showing a conventional bias circuit, and a circuit diagram showing a conventional bias circuit.
The figure is a circuit diagram showing an embodiment of the present invention. Explanation of main figure numbers, 17...Differential amplifier, 21.
...Reference current generation circuit, 25...Current inversion circuit.
Claims (1)
ジスタと、該第１及び第２トランジスタの共通エミッタ
に接続された定電流用の第３トランジスタとから成る差
動増幅器にバイアス電流を供給する為のバイアス回路で
あって、基準電流を発生する基準電流発生回路と、前記
基準電流と等しい大きさの反転電流を発生する第１電流
反転回路と、前記基準電流の１／２の大きさの一対の反
転電流を発生する第２電流反転回路とから成り、前記第
１電流反転回路の出力反転電流を前記第３トランジスタ
のベースに供給するとともに、前記第２電流反転回路の
一対の出力反転電流をそれぞれ前記第１及び第２トラン
ジスタのベースに供給してバイアスを行う様にした差動
増幅器のバイアス回路。A bias current is supplied to a differential amplifier consisting of first and second transistors for amplification whose emitters are commonly connected, and a third transistor for constant current that is connected to the common emitters of the first and second transistors. The bias circuit includes a reference current generation circuit that generates a reference current, a first current inversion circuit that generates an inversion current that is equal to the reference current, and a first current inversion circuit that generates an inversion current that is equal to the reference current. and a second current inverting circuit that generates a pair of inverted currents, and supplies the output inverted current of the first current inverting circuit to the base of the third transistor, and supplies the output inverted current of the pair of second current inverting circuits to the base of the third transistor. A bias circuit for a differential amplifier configured to supply bias to the bases of the first and second transistors, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12857983U JPS6037916U (en) | 1983-08-19 | 1983-08-19 | Differential amplifier bias circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12857983U JPS6037916U (en) | 1983-08-19 | 1983-08-19 | Differential amplifier bias circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6037916U true JPS6037916U (en) | 1985-03-15 |
| JPH0115225Y2 JPH0115225Y2 (en) | 1989-05-08 |
Family
ID=30291634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12857983U Granted JPS6037916U (en) | 1983-08-19 | 1983-08-19 | Differential amplifier bias circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6037916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62225018A (en) * | 1986-03-27 | 1987-10-03 | Toshiba Corp | Base current correction circuit for transistor amplifier |
-
1983
- 1983-08-19 JP JP12857983U patent/JPS6037916U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62225018A (en) * | 1986-03-27 | 1987-10-03 | Toshiba Corp | Base current correction circuit for transistor amplifier |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0115225Y2 (en) | 1989-05-08 |
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