JPS58104010U - buffer circuit - Google Patents
buffer circuitInfo
- Publication number
- JPS58104010U JPS58104010U JP19396781U JP19396781U JPS58104010U JP S58104010 U JPS58104010 U JP S58104010U JP 19396781 U JP19396781 U JP 19396781U JP 19396781 U JP19396781 U JP 19396781U JP S58104010 U JPS58104010 U JP S58104010U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- base
- buffer
- current
- buffer transistor
- 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)
- Picture Signal Circuits (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図は一般的なエミッタホロワ回路をバッファ回路と
して用いたクランプ回路の回路構成を示す回路図である
。第２図は上記クランプ回路の動作を説明するための波
形図である。第３図は来者゛案をクランプ回路に適用し
た第１の実施例を示す ′回路図である。第４図
は本考案をサンプルホールド回路に適用した第２の実施
例を示す回路図である。第５図は本考案を電源装置に適
用した第３の実施例を示す回路図である。
１・・・・・・クランプ回路、８・・・・・・クランプ
回路の出。
先端子、２０．４０・・・バッファ回路、２１．４１・
・・・・・バッファ用トランジスタ、２４．４２・・・
・・・電流検出用トランジスタ、２５“、 ２６．
４４． ４５゜４６・・・・・・カレントミラー回路を
形成するトランジスタ、２７，４３・・・・・・カレン
トミラー回路。FIG. 1 is a circuit diagram showing the circuit configuration of a clamp circuit using a general emitter follower circuit as a buffer circuit. FIG. 2 is a waveform diagram for explaining the operation of the clamp circuit. FIG. 3 is a circuit diagram showing a first embodiment in which the author's proposal is applied to a clamp circuit. FIG. 4 is a circuit diagram showing a second embodiment in which the present invention is applied to a sample and hold circuit. FIG. 5 is a circuit diagram showing a third embodiment in which the present invention is applied to a power supply device. 1... Clamp circuit, 8... Clamp circuit output. Tip, 20.40... Buffer circuit, 21.41.
...Buffer transistor, 24.42...
... Current detection transistor, 25", 26.
44. 45°46...Transistor forming a current mirror circuit, 27,43...Current mirror circuit.
Claims (1)
出されるバッファ用トラ、ンジスタと、電源端子と上記
バッファ用トランジスタのコレクタとの間に直列接続さ
れ該バッファ用トランジスタと同じ導電構造の電流検出
用トランジスタと、上記電流検出用トランジスタのベー
スに入力端子が接続され上記バッファ用トランジスタの
ベースに出力端子が接続されたカレントミラー回路とを
備え、上記バッファ用トランジスタに流れるベース電流
に相当する帰還電流を上記カレントミラー回路を介して
上記バッファ用トランジスタのベース・ に帰還するよ
うにしたことを特徴とするバッファ回路。A buffer transistor or transistor in which an input signal is supplied to the base and an output signal is taken out from the emitter, and a current detection transistor connected in series between the power supply terminal and the collector of the buffer transistor and having the same conductive structure as the buffer transistor. and a current mirror circuit having an input terminal connected to the base of the current detection transistor and an output terminal connected to the base of the buffer transistor, and configured to generate a feedback current corresponding to the base current flowing through the buffer transistor. A buffer circuit characterized in that the current is fed back to the base of the buffer transistor via the current mirror circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19396781U JPS58104010U (en) | 1981-12-30 | 1981-12-30 | buffer circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19396781U JPS58104010U (en) | 1981-12-30 | 1981-12-30 | buffer circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58104010U true JPS58104010U (en) | 1983-07-15 |
Family
ID=30107302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19396781U Pending JPS58104010U (en) | 1981-12-30 | 1981-12-30 | buffer circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58104010U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6096010A (en) * | 1983-10-31 | 1985-05-29 | Nec Corp | Transistor circuit |
-
1981
- 1981-12-30 JP JP19396781U patent/JPS58104010U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6096010A (en) * | 1983-10-31 | 1985-05-29 | Nec Corp | Transistor circuit |
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