JPS5925814U - low frequency amplifier circuit - Google Patents
low frequency amplifier circuitInfo
- Publication number
- JPS5925814U JPS5925814U JP12043182U JP12043182U JPS5925814U JP S5925814 U JPS5925814 U JP S5925814U JP 12043182 U JP12043182 U JP 12043182U JP 12043182 U JP12043182 U JP 12043182U JP S5925814 U JPS5925814 U JP S5925814U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- emitter
- collector
- transistors
- low frequency
- 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、低周波増幅回路の従来例、第２図は本考案の
一実施例を示す。
主な図番の説明、１・・・・・・入力端子、２．３・・
・・・・電流源、４．５・・・・・・逆流防止ダイオー
ド、６・・・・・・第３の入力段トランジスタ、７・・
・・・・第４の入力段トランジスタ、１６・・・・・・
出力端子、１７・・・・・・第１のアイドリング電流補
償回路、２１・曲・第２のアイドリング電流補償回路、
２６・・・・・・中点電圧端子。FIG. 1 shows a conventional example of a low frequency amplifier circuit, and FIG. 2 shows an embodiment of the present invention. Explanation of main drawing numbers, 1...Input terminal, 2.3...
...Current source, 4.5...Reverse current prevention diode, 6...Third input stage transistor, 7...
...Fourth input stage transistor, 16...
Output terminal, 17...first idling current compensation circuit, 21, song, second idling current compensation circuit,
26...Midpoint voltage terminal.
Claims (1)
のトランジスタのコレクタに第２のトランジスタのコレ
クタを接続し、該第２のトランジスタのエミッタに第１
の抵抗回路を介して第３のトランジスタのエミッタを接
続し、該第３のトランジスタのコレクタに第４のトラン
ジスタのコレクタを接続し、該第４のトランジスタのエ
ミッタをアース端子に接続し、第５のトランジスタのエ
ミッタに電源を接続し、該第５のトランジスタのコレク
タに第６のトランジスタのコレクタを接続し、該第６の
トランジスタのエミッタに第２の抵抗回路を介して第７
のトランジスタのエミッタを接続し、該第７のトランジ
スタのコレクタに第８のトランジスタのコレクタを接続
し、該第８のトランジスタのエミッタをアース端子に接
続し、前記第２、第３、第６及び第７のトランジスタの
ベースに入力端子を接続し、前記第１と第５のトランジ
スタのベースを共通接続し、第４と第８のトランジスタ
のベースを共通接続し、前記第６及び第７のトランジス
タのコレクタに、各々の出力段トランジスタのベースを
接続し、該出力段トランジスタ及び前記第２の抵抗回路
に出力端子を設けたことを特徴とする低周波増幅回路。A power supply is connected to the emitter of the first transistor, and the first transistor is connected to the emitter of the first transistor.
The collector of the second transistor is connected to the collector of the transistor, and the emitter of the second transistor is connected to the collector of the first transistor.
The emitter of the third transistor is connected through a resistor circuit, the collector of the fourth transistor is connected to the collector of the third transistor, the emitter of the fourth transistor is connected to the ground terminal, and the emitter of the fourth transistor is connected to the ground terminal. A power supply is connected to the emitter of the transistor, a collector of the sixth transistor is connected to the collector of the fifth transistor, and a power supply is connected to the emitter of the sixth transistor via the second resistor circuit.
The emitters of the transistors are connected, the collectors of the eighth transistors are connected to the collectors of the seventh transistors, the emitters of the eighth transistors are connected to the ground terminal, and the second, third, sixth and An input terminal is connected to the base of the seventh transistor, the bases of the first and fifth transistors are commonly connected, the bases of the fourth and eighth transistors are commonly connected, and the sixth and seventh transistors are connected in common. A low frequency amplifier circuit, characterized in that a base of each output stage transistor is connected to the collector of the low frequency amplifier circuit, and an output terminal is provided to the output stage transistor and the second resistor circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12043182U JPS5925814U (en) | 1982-08-06 | 1982-08-06 | low frequency amplifier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12043182U JPS5925814U (en) | 1982-08-06 | 1982-08-06 | low frequency amplifier circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5925814U true JPS5925814U (en) | 1984-02-17 |
| JPH036022Y2 JPH036022Y2 (en) | 1991-02-15 |
Family
ID=30276019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12043182U Granted JPS5925814U (en) | 1982-08-06 | 1982-08-06 | low frequency amplifier circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5925814U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5437668A (en) * | 1977-08-31 | 1979-03-20 | Sansui Electric Co | Differential amplifier |
-
1982
- 1982-08-06 JP JP12043182U patent/JPS5925814U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5437668A (en) * | 1977-08-31 | 1979-03-20 | Sansui Electric Co | Differential amplifier |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH036022Y2 (en) | 1991-02-15 |
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