JPH0164716U - - Google Patents
Info
- Publication number
- JPH0164716U JPH0164716U JP1987159564U JP15956487U JPH0164716U JP H0164716 U JPH0164716 U JP H0164716U JP 1987159564 U JP1987159564 U JP 1987159564U JP 15956487 U JP15956487 U JP 15956487U JP H0164716 U JPH0164716 U JP H0164716U
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- semiconductor switch
- operational amplifier
- reference voltage
- generation 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
- 239000004065 semiconductor Substances 0.000 claims 6
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Amplifiers (AREA)
- Control Of Voltage And Current In General (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Analogue/Digital Conversion (AREA)
- Electronic Switches (AREA)
Description
第１図及び第２図は夫々本考案に係る装置の実
施例の接続図、第３図は第１図及び第２図に用い
られる基準電圧発生回路の概略等価回路図である
。
ＶＳ……基準電圧発生回路、Ａ１……誤差増幅
器、Ｈ，Ｌ……端子、Ｑ１，Ｑ２……トランジス
タ、ＲＳ……基準抵抗、ＯＰ……演算増幅器、Ｓ
Ｇ……基準コモン電位線、ＳＧ′……シグナル・
グランド。
1 and 2 are connection diagrams of embodiments of the device according to the present invention, and FIG. 3 is a schematic equivalent circuit diagram of the reference voltage generation circuit used in FIGS. 1 and 2. VS...Reference voltage generation circuit, A1...Error amplifier, H, L...Terminal, Q1, Q2...Transistor, RS...Reference resistor, OP...Operation amplifier, S
G...Reference common potential line, SG'...Signal
ground.
Claims (1)
電圧発生回路ＶＳ、負荷が接続されるＨ端子とＬ
端子、基準電圧発生回路ＶＳの出力端が一方の入
力端に接続され出力端が前記Ｈ端子に接続される
と共にそのＨ端子が半導体スイツチＳ１を介して
かつＬ端子が半導体スイツチＳ２を介して夫々他
方の入力端に接続される誤差増幅器、前記Ｌ端子
とコモン電位点ＣＯＭ間に接続され前記半導体ス
イツチＳ１と同期してオンになる半導体スイツチ
Ｑ１、前記Ｌ端子とコモン電位点ＣＯＭ間に基準
抵抗ＲＳを介して接続され前記半導体スイツチＳ
２と同期してオンになる半導体スイツチＱ２、及
びその反転入力端子と出力端子が接続された演算
増幅器ＯＰを具備し、前記基準抵抗ＲＳと半導体
スイツチＱ２の接続点と、前記演算増幅器ＯＰの
他方の入力端との間を基準コモン電位線ＳＧで接
続すると共に、演算増幅器ＯＰの出力端と基準電
圧発生回路ＶＳとをシグナル・グランド線ＳＧ′
で接続したことを特徴とする電圧・電流発生装置
。 Reference voltage generation circuit VS that generates a variable reference voltage according to the set value, H terminal and L terminal to which the load is connected
terminals, the output end of the reference voltage generation circuit VS is connected to one input end, the output end is connected to the H terminal, and the H terminal is connected through the semiconductor switch S1, and the L terminal is connected through the semiconductor switch S2, respectively. An error amplifier connected to the other input terminal, a semiconductor switch Q1 connected between the L terminal and the common potential point COM and turned on in synchronization with the semiconductor switch S1, and a reference resistor between the L terminal and the common potential point COM. The semiconductor switch S connected via RS
2, and an operational amplifier OP whose inverting input terminal and output terminal are connected, and a connection point between the reference resistor RS and the semiconductor switch Q2 and the other operational amplifier OP. A reference common potential line SG is connected to the input terminal of the operational amplifier OP, and a signal ground line SG' is used to connect the output terminal of the operational amplifier OP and the reference voltage generation circuit VS.
A voltage/current generator characterized by being connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15956487U JPH0710406Y2 (en) | 1987-10-19 | 1987-10-19 | Voltage / current generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15956487U JPH0710406Y2 (en) | 1987-10-19 | 1987-10-19 | Voltage / current generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0164716U true JPH0164716U (en) | 1989-04-25 |
| JPH0710406Y2 JPH0710406Y2 (en) | 1995-03-08 |
Family
ID=31440888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15956487U Expired - Lifetime JPH0710406Y2 (en) | 1987-10-19 | 1987-10-19 | Voltage / current generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0710406Y2 (en) |
-
1987
- 1987-10-19 JP JP15956487U patent/JPH0710406Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0710406Y2 (en) | 1995-03-08 |