JPS58144913U - current stabilization circuit - Google Patents
current stabilization circuitInfo
- Publication number
- JPS58144913U JPS58144913U JP4124682U JP4124682U JPS58144913U JP S58144913 U JPS58144913 U JP S58144913U JP 4124682 U JP4124682 U JP 4124682U JP 4124682 U JP4124682 U JP 4124682U JP S58144913 U JPS58144913 U JP S58144913U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- transistor
- bias
- voltage dividing
- output
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の定電流源回路を示す回路、第２図はこの
考案の一実施例を示す回路図、第３図はこの考案の他の
実施例を示す回路図である。
Ｑ□□〜Ｑ１４・・・トランジスタ、Ｄ□□、Ｄ□２．
Ｄよ。、 Ｄｎ、−１・・・ダイオード、Ｒ１□〜Ｒ□
５・・・抵抗。FIG. 1 is a circuit diagram showing a conventional constant current source circuit, FIG. 2 is a circuit diagram showing one embodiment of this invention, and FIG. 3 is a circuit diagram showing another embodiment of this invention. Q□□~Q14...transistor, D□□, D□2.
D. , Dn, -1...diode, R1□~R□
5...Resistance.
Claims (1)
ドを少なくとも有し、この第１のダイオードと並列に分
圧抵抗が接続されている第１のトランジスタと、前記分
圧抵抗の分圧出力がベースに加えられ、そのエミッタ抵
抗の出力を第２のダイオードの一端及びこのダイオード
とカレントミラー回路を形成する出力トランジスタのベ
ースに加える第２のトランジスタと、この第２のトラン
ジスタのエミッタ抵抗出力がコレクタに加えられる第３
のトランジスタと、この第３のトランジスタのベースに
バイアス抵抗及び複数の第２のダイオードの直列回路で
バイア支を供給するバイアス回路とを具備し、前記分圧
抵抗の分圧電圧、前記バイアス回路のバイアス抵抗及び
前記エミッタ抵抗を選定することによって、前記エミッ
タ抵抗からの温度ドリフトによる電流変動出力分を前記
第１のトランジスタのコレクタ及び前記分圧抵抗を経由
した帰還変動分によってキャンセルするようにしたこと
を特徴とする電流安定化回路。a first transistor having at least a first diode connected to a current path between a power source and a collector, and a voltage dividing resistor connected in parallel with the first diode; and a voltage dividing output of the voltage dividing resistor. is applied to its base, and the output of its emitter resistance is applied to one end of a second diode and to the base of an output transistor forming a current mirror circuit with this diode, and the emitter resistance output of this second transistor is 3rd added to collector
and a bias circuit that supplies a bias support to the base of the third transistor by a series circuit of a bias resistor and a plurality of second diodes, and a divided voltage of the voltage dividing resistor and a bias circuit of the bias circuit. By selecting the bias resistor and the emitter resistor, the current fluctuation output due to temperature drift from the emitter resistor is canceled by the feedback fluctuation through the collector of the first transistor and the voltage dividing resistor. A current stabilization circuit featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4124682U JPS58144913U (en) | 1982-03-24 | 1982-03-24 | current stabilization circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4124682U JPS58144913U (en) | 1982-03-24 | 1982-03-24 | current stabilization circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58144913U true JPS58144913U (en) | 1983-09-29 |
Family
ID=30052431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4124682U Pending JPS58144913U (en) | 1982-03-24 | 1982-03-24 | current stabilization circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58144913U (en) |
-
1982
- 1982-03-24 JP JP4124682U patent/JPS58144913U/en active Pending
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