JPS6361011U - - Google Patents
Info
- Publication number
- JPS6361011U JPS6361011U JP13517287U JP13517287U JPS6361011U JP S6361011 U JPS6361011 U JP S6361011U JP 13517287 U JP13517287 U JP 13517287U JP 13517287 U JP13517287 U JP 13517287U JP S6361011 U JPS6361011 U JP S6361011U
- Authority
- JP
- Japan
- Prior art keywords
- error amplifier
- generation circuit
- inverting input
- input terminal
- reference voltage
- 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
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Continuous-Control Power Sources That Use Transistors (AREA)
- Amplifiers (AREA)
Description
第１図は従来の定電圧回路の回路図、第２図は
本考案の実施例の誤差増幅器の回路図である。
図において、Ｖｃｃ……直流電源端子、ＧＮＤ
……接地端子、ＯＵＴ……出力端子、Ａ……誤差
増幅器、Ｒ１〜Ｒ５……抵抗、Ｑ１〜Ｑ２……Ｐ
ＮＰトランジスタ、Ｑ３〜Ｑ６……ＮＰＮトラン
ジスタ、Ｚ１……ツエナーダイオードである。
FIG. 1 is a circuit diagram of a conventional constant voltage circuit, and FIG. 2 is a circuit diagram of an error amplifier according to an embodiment of the present invention. In the figure, Vcc...DC power supply terminal, GND
...Ground terminal, OUT...Output terminal, A...Error amplifier, R1 to R5 ...Resistor, Q1 to Q2 ...P
NP transistors, Q3 to Q6 ...NPN transistors, Z1 ...Zener diodes.
Claims (1)
および第２のトランジスタを有し、反転入力端子
と非反転入力端子とをもつた差動増幅部を備えた
誤差増幅器と、該誤差増幅器の出力端子に生じる
電圧でバイアスされて前記差動増幅部の前記非反
転入力端子に基準電圧を発生する基準電圧発生回
路と、前記誤差増幅器の前記出力端子に定電圧を
発生させるべく前記出力端子から前記反転入力端
子に電圧帰還を施こす手段とを具備した定電圧発
生回路において、前記第１および第２のトランジ
スタのエミツタ抵抗の値を前記誤差増幅器の出力
端子にオフセツト電圧が生じるように設定し、該
オフセツト電圧で前記基準電圧発生回路が前記基
準電圧を生じるようにしたことを特徴とする定電
圧発生回路。 The first emitter side is commonly connected to a constant current source.
and an error amplifier having a second transistor and having a differential amplification section having an inverting input terminal and a non-inverting input terminal; a reference voltage generation circuit for generating a reference voltage at the non-inverting input terminal of the error amplifier; and means for performing voltage feedback from the output terminal to the inverting input terminal in order to generate a constant voltage at the output terminal of the error amplifier. In the constant voltage generation circuit, the values of the emitter resistances of the first and second transistors are set so that an offset voltage is generated at the output terminal of the error amplifier, and the reference voltage generation circuit generates the reference voltage at the offset voltage. A constant voltage generation circuit characterized in that it generates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987135172U JPH0449701Y2 (en) | 1987-09-03 | 1987-09-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987135172U JPH0449701Y2 (en) | 1987-09-03 | 1987-09-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6361011U true JPS6361011U (en) | 1988-04-22 |
| JPH0449701Y2 JPH0449701Y2 (en) | 1992-11-24 |
Family
ID=31037102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987135172U Expired JPH0449701Y2 (en) | 1987-09-03 | 1987-09-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0449701Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4850244A (en) * | 1971-10-25 | 1973-07-16 | ||
| JPS5232252U (en) * | 1975-08-28 | 1977-03-07 | ||
| JPS54132753A (en) * | 1978-04-05 | 1979-10-16 | Hitachi Ltd | Referential voltage generator and its application |
-
1987
- 1987-09-03 JP JP1987135172U patent/JPH0449701Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4850244A (en) * | 1971-10-25 | 1973-07-16 | ||
| JPS5232252U (en) * | 1975-08-28 | 1977-03-07 | ||
| JPS54132753A (en) * | 1978-04-05 | 1979-10-16 | Hitachi Ltd | Referential voltage generator and its application |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0449701Y2 (en) | 1992-11-24 |
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