JPS6410816U - - Google Patents
Info
- Publication number
- JPS6410816U JPS6410816U JP10617787U JP10617787U JPS6410816U JP S6410816 U JPS6410816 U JP S6410816U JP 10617787 U JP10617787 U JP 10617787U JP 10617787 U JP10617787 U JP 10617787U JP S6410816 U JPS6410816 U JP S6410816U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- inverting input
- input terminal
- amplifier
- series circuit
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 8
- 239000000470 constituent Substances 0.000 description 1
Landscapes
- Control Of Voltage And Current In General (AREA)
- Power Conversion In General (AREA)
- Analogue/Digital Conversion (AREA)
Description
第１図は本考案に係る電圧・電流発生装置の一
実施例を示した図、第２図は第１図装置の構成素
子の具体的定数関係の例を示した図、第３図は第
１図の装置を定電流発生装置として動作させた場
合の回路を示した図、第４図は第１図の装置を定
電圧発生装置として動作させた場合の回路を示し
た図、第５図は第４図の等価回路図、第６図と第
７図は本考案の別の構成例を示した図、第８図と
第９図は従来例を示す図である。
１……Ｄ／Ａ変換器、２……入力部、３……出
力部、Ｕ１，Ｕ２……アンプ、Ｒ１〜Ｒ７……抵
抗、Ｃ１……コンデンサ、Ｂ１，Ｂ２……バツフ
ア。
FIG. 1 is a diagram showing an embodiment of the voltage/current generator according to the present invention, FIG. 2 is a diagram showing an example of specific constant relationships of the constituent elements of the device shown in FIG. 1, and FIG. 1 is a diagram showing a circuit when the device in FIG. 1 is operated as a constant current generator, FIG. 4 is a diagram showing a circuit when the device in FIG. 1 is operated as a constant voltage generator, and FIG. 5 is a diagram showing a circuit when the device in FIG. 1 is operated as a constant voltage generator. is an equivalent circuit diagram of FIG. 4, FIGS. 6 and 7 are diagrams showing other configuration examples of the present invention, and FIGS. 8 and 9 are diagrams showing conventional examples. 1...D/A converter, 2...Input section, 3...Output section, U1 , U2 ...Amplifier, R1 to R7 ...Resistor, C1 ...Capacitor, B1 , B2 ...Batsuhua.
Claims (1)
力端子と非反転入力端子の間に第１の抵抗ｒと第
２の抵抗Ｒ４の直列回路が接続され、出力端子と
反転入力端子の間に帰還抵抗Ｒ２が接続され、反
転入力端子と回路アース間に抵抗Ｒ１が接続され
た第１のアンプＵ１で構成される出力部と、 入力抵抗Ｒ５を介して反転入力端子に設定信号
が加えられ出力端子が前記第１のアンプの入力抵
抗Ｒ３に接続される第２のアンプＵ２と、一端が
第１のアンプの非反転入力端子に接続され他端が
第２のアンプの反転入力端子に接続されるコンデ
ンサとスイツチからなる第１の直列回路と、第２
のアンプの反転入力端子と出力端子間に接続され
る帰還抵抗とスイツチからなる第２の直列回路と
、で構成される入力部と、 バツフアＢ２と抵抗Ｒ７とスイツチが直列に接
続され、前記出力部のフオース出力が加えられる
負荷側の受電端電圧を前記第２のアンプの反転入
力端子へ帰還するフイードバツク回路と、を備え
、 定電圧を発生する場合は、第１の直列回路のス
イツチをオンにするとともにフイードバツク回路
のスイツチをオンとし、 定電流を発生する場合は、第２の直列回路のス
イツチをオンにするとともにフイードバツク回路
と第１の直列回路のスイツチをオフとするように
した電圧・電流発生装置。[Claims for Utility Model Registration] An input resistor R3 is connected to the non-inverting input terminal, a series circuit of a first resistor r and a second resistor R4 is connected between the output terminal and the non-inverting input terminal, an output section consisting of a first amplifier U 1 with a feedback resistor R 2 connected between the output terminal and the inverting input terminal and a resistor R 1 connected between the inverting input terminal and the circuit ground; and an input resistor R 5 a second amplifier U 2 to which a setting signal is applied to its inverting input terminal and whose output terminal is connected to the input resistor R 3 of said first amplifier, and whose one end is connected to the non-inverting input terminal of the first amplifier; a first series circuit consisting of a capacitor and a switch, the other end of which is connected to the inverting input terminal of the second amplifier;
a second series circuit consisting of a feedback resistor and a switch connected between the inverting input terminal and the output terminal of the amplifier; a buffer B2 , a resistor R7 , and the switch are connected in series; a feedback circuit that feeds back the voltage at the receiving end of the load side to which the force output of the output section is applied to the inverting input terminal of the second amplifier, and when generating a constant voltage, a switch of the first series circuit. When a constant current is generated, the second series circuit is turned on and the feedback circuit and the first series circuit are turned off. Voltage/current generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10617787U JPH067367Y2 (en) | 1987-07-10 | 1987-07-10 | Voltage / current generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10617787U JPH067367Y2 (en) | 1987-07-10 | 1987-07-10 | Voltage / current generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6410816U true JPS6410816U (en) | 1989-01-20 |
| JPH067367Y2 JPH067367Y2 (en) | 1994-02-23 |
Family
ID=31339453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10617787U Expired - Lifetime JPH067367Y2 (en) | 1987-07-10 | 1987-07-10 | Voltage / current generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH067367Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7486285B2 (en) | 2004-05-24 | 2009-02-03 | Seiko Epson Corporation | DA converter, data line driving circuit, electro-optical device, driving method thereof, and electronic apparatus |
| JP2009284201A (en) * | 2008-05-22 | 2009-12-03 | Yokogawa Electric Corp | Negative feedback amplifier |
| JP5559905B1 (en) * | 2013-04-24 | 2014-07-23 | 株式会社エーディーシー | Electronic circuit |
-
1987
- 1987-07-10 JP JP10617787U patent/JPH067367Y2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7486285B2 (en) | 2004-05-24 | 2009-02-03 | Seiko Epson Corporation | DA converter, data line driving circuit, electro-optical device, driving method thereof, and electronic apparatus |
| JP2009284201A (en) * | 2008-05-22 | 2009-12-03 | Yokogawa Electric Corp | Negative feedback amplifier |
| JP5559905B1 (en) * | 2013-04-24 | 2014-07-23 | 株式会社エーディーシー | Electronic circuit |
| JP2014216750A (en) * | 2013-04-24 | 2014-11-17 | 株式会社エーディーシー | Electronic circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH067367Y2 (en) | 1994-02-23 |