JPS63175869U - - Google Patents
Info
- Publication number
- JPS63175869U JPS63175869U JP6772487U JP6772487U JPS63175869U JP S63175869 U JPS63175869 U JP S63175869U JP 6772487 U JP6772487 U JP 6772487U JP 6772487 U JP6772487 U JP 6772487U JP S63175869 U JPS63175869 U JP S63175869U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- amplifier
- current
- feedback
- 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
- 238000005259 measurement Methods 0.000 claims 4
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Measurement Of Current Or Voltage (AREA)
Description
第１図はこの考案に係る直流電圧・電流発生装
置の要部を示した回路図、第２図は同発生装置の
帰還回路を摘示した回路図、第３図は従来例を示
す回路図である。
図中、１は設定器、２はＣＰＵ、３はＤ／Ａ変
換器、４は増幅器、５は電流帰還回路、６は電圧
帰還回路、７はＡ／Ｄ変換器、８は表示器、１１
は帰還回路である。
Fig. 1 is a circuit diagram showing the main parts of the DC voltage/current generator according to this invention, Fig. 2 is a circuit diagram showing the feedback circuit of the generator, and Fig. 3 is a circuit diagram showing a conventional example. be. In the figure, 1 is a setting device, 2 is a CPU, 3 is a D/A converter, 4 is an amplifier, 5 is a current feedback circuit, 6 is a voltage feedback circuit, 7 is an A/D converter, 8 is a display, 11
is a feedback circuit.
Claims (1)
ＰＵ（中央制御手段）と、該ＣＰＵからのデジタ
ル信号をアナログ信号に変換するＡ／Ｄ変換器と
、該Ａ／Ｄ変換器からのアナログ信号を増幅して
定電圧もしくは定電流を出力する増幅器と、該増
幅器の出力電流、出力電圧をそれぞれ検出して上
記増幅器に負帰還をかける電流帰還回路および電
圧帰還回路と、該各帰還回路にて検出された検出
信号をデジタル信号に変換して上記ＣＰＵに供給
するモニタ回路とを備え、上記増幅器の出力端子
に被測定物を接続することにより、その被測定物
から印加される電圧、電流を上記各帰還回路およ
び上記モニタ回路を介して適宜測定し得るように
した直流電圧・電流発生装置において、 上記増幅器の出力側に、電流検出用抵抗および
電圧測定用抵抗を含む測定回路を切替え手段を介
して接続可能にするとともに、上記増幅器にその
増幅率をほぼ１とし得る帰還回路および該帰還回
路を選択的に開閉するスイツチを設けてなること
を特徴とする直流電圧・電流発生装置。[Claims for Utility Model Registration] C including a setting device for setting a desired generated signal
A PU (central control unit), an A/D converter that converts a digital signal from the CPU into an analog signal, and an amplifier that amplifies the analog signal from the A/D converter and outputs a constant voltage or constant current. and a current feedback circuit and a voltage feedback circuit that respectively detect the output current and output voltage of the amplifier and apply negative feedback to the amplifier, and convert the detection signals detected by the respective feedback circuits into digital signals. By connecting an object to be measured to the output terminal of the amplifier, the voltage and current applied from the object to be measured can be appropriately measured via the respective feedback circuits and the monitor circuit. In the DC voltage/current generator, a measurement circuit including a current detection resistor and a voltage measurement resistor can be connected to the output side of the amplifier via a switching means, and a measurement circuit including a current detection resistor and voltage measurement resistor can be connected to the output side of the amplifier. 1. A DC voltage/current generator comprising a feedback circuit whose ratio can be approximately 1, and a switch that selectively opens and closes the feedback circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6772487U JPH0611471Y2 (en) | 1987-05-06 | 1987-05-06 | DC voltage / current generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6772487U JPH0611471Y2 (en) | 1987-05-06 | 1987-05-06 | DC voltage / current generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63175869U true JPS63175869U (en) | 1988-11-15 |
| JPH0611471Y2 JPH0611471Y2 (en) | 1994-03-23 |
Family
ID=30906897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6772487U Expired - Lifetime JPH0611471Y2 (en) | 1987-05-06 | 1987-05-06 | DC voltage / current generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0611471Y2 (en) |
-
1987
- 1987-05-06 JP JP6772487U patent/JPH0611471Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0611471Y2 (en) | 1994-03-23 |
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