JPS621216U - - Google Patents
Info
- Publication number
- JPS621216U JPS621216U JP9266285U JP9266285U JPS621216U JP S621216 U JPS621216 U JP S621216U JP 9266285 U JP9266285 U JP 9266285U JP 9266285 U JP9266285 U JP 9266285U JP S621216 U JPS621216 U JP S621216U
- Authority
- JP
- Japan
- Prior art keywords
- output
- load
- input
- amplifier
- field effect
- 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
- 230000005669 field effect Effects 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Continuous-Control Power Sources That Use Transistors (AREA)
- Control Of Voltage And Current In General (AREA)
Description
第１図は本考案を実施した交流定電流回路の回
路図であり、第２図はその説明図である。
２…交流電源、９…増幅トランジスタ、１１…
第２電界効果トランジスタ、１４…電力増幅器、
１５，１６…第１、第２接続端子、１７…検出抵
抗、１９…実効値変換手段、２０…演算増幅器、
２１…ボリウム、２５…負荷。
FIG. 1 is a circuit diagram of an AC constant current circuit embodying the present invention, and FIG. 2 is an explanatory diagram thereof. 2...AC power supply, 9...amplification transistor, 11...
Second field effect transistor, 14...power amplifier,
15, 16...first and second connection terminals, 17...detection resistor, 19...effective value conversion means, 20...operational amplifier,
21...Volume, 25...Load.
Claims (1)
入力し、第２制御電極と基準電位点間に電界効果
トランジスタを接続し、出力電極を電力増幅回路
に接続した増幅器と、前記電力増幅器の出力を負
荷の一端に接続しうるようになすと共に一端が基
準電位点に接続された検出抵抗の他端に前記負荷
の他端を接続しうるようになす手段と、前記検出
抵抗の出力を実効値に変換する変換手段と、該変
換手段に接続され前記電界効果トランジスタの導
通度を制御する演算増幅器とからなる交流定電流
回路。 (2) 前記演算増幅器は前記変換手段の出力が入
力される入力端とは別の入力端に負荷電流設定用
のボリウムが設けられていることを特徴とする実
用新案登録請求の範囲第１項に記載の交流定電流
回路。[Claims for Utility Model Registration] (1) An AC signal is input to the first control electrode of the transistor, a field effect transistor is connected between the second control electrode and a reference potential point, and the output electrode is connected to a power amplification circuit. an amplifier and means for enabling the output of the power amplifier to be connected to one end of a load and for connecting the other end of the load to the other end of a sensing resistor whose one end is connected to a reference potential point; An AC constant current circuit comprising a converting means for converting the output of the detection resistor into an effective value, and an operational amplifier connected to the converting means and controlling the conductivity of the field effect transistor. (2) Utility model registration claim 1, characterized in that the operational amplifier is provided with a volume for setting the load current at an input terminal different from the input terminal to which the output of the conversion means is input. AC constant current circuit described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9266285U JPS621216U (en) | 1985-06-19 | 1985-06-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9266285U JPS621216U (en) | 1985-06-19 | 1985-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS621216U true JPS621216U (en) | 1987-01-07 |
Family
ID=30649659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9266285U Pending JPS621216U (en) | 1985-06-19 | 1985-06-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS621216U (en) |
-
1985
- 1985-06-19 JP JP9266285U patent/JPS621216U/ja active Pending