JPS6262314U - - Google Patents
Info
- Publication number
- JPS6262314U JPS6262314U JP15249685U JP15249685U JPS6262314U JP S6262314 U JPS6262314 U JP S6262314U JP 15249685 U JP15249685 U JP 15249685U JP 15249685 U JP15249685 U JP 15249685U JP S6262314 U JPS6262314 U JP S6262314U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- diode
- constant current
- current circuit
- resistor connected
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Continuous-Control Power Sources That Use Transistors (AREA)
Description
第１図は本考案の基本構成を示す第１の実施例
、第２図はダイオードの電流―順方向電圧特性の
一例を示す図である。第３図は本考案の定電流回
路を模擬負荷に応用した第２の実施例、第４図は
第２の実施例のタイムチヤートである。第５図は
本考案の定電流回路を充電回路に応用した第３の
実施例、第６図は第３の実施例のタイムチヤート
である。
１……直流電源、２……定電流回路、３……負
荷、４……制御電圧発生器、Ｑ１，Ｑ２……トラ
ンジスタ、Ｄ１，Ｄ２，Ｄ３……ダイオード、Ｒ
１，Ｒ２……抵抗。
FIG. 1 is a first embodiment showing the basic configuration of the present invention, and FIG. 2 is a diagram showing an example of current-forward voltage characteristics of a diode. FIG. 3 shows a second embodiment in which the constant current circuit of the present invention is applied to a simulated load, and FIG. 4 is a time chart of the second embodiment. FIG. 5 is a third embodiment in which the constant current circuit of the present invention is applied to a charging circuit, and FIG. 6 is a time chart of the third embodiment. 1...DC power supply, 2...Constant current circuit, 3...Load, 4...Control voltage generator, Q1 , Q2 ...Transistor, D1, D2, D3...Diode, R
1, R2...Resistance.
Claims (1)
いる抵抗と、 該トランジスタのベースと該抵抗の他端との間
に接続されている複数または単数のダイオードと
、 該ダイオードに電流を流す手段とから構成され
る定電流回路において、 該ダイオードに流れる電流を外部電圧により制
御する制御手段を設けたことを特徴とする定電流
回路。[Claims for Utility Model Registration] A transistor for controlling output current, a resistor connected in series with the emitter of the transistor, and a resistor connected between the base of the transistor and the other end of the resistor. What is claimed is: 1. A constant current circuit comprising a plurality or a single diode and means for causing current to flow through the diode, the constant current circuit comprising: a control means for controlling the current flowing through the diode using an external voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15249685U JPH0542487Y2 (en) | 1985-10-07 | 1985-10-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15249685U JPH0542487Y2 (en) | 1985-10-07 | 1985-10-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6262314U true JPS6262314U (en) | 1987-04-17 |
| JPH0542487Y2 JPH0542487Y2 (en) | 1993-10-26 |
Family
ID=31070524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15249685U Expired - Lifetime JPH0542487Y2 (en) | 1985-10-07 | 1985-10-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0542487Y2 (en) |
-
1985
- 1985-10-07 JP JP15249685U patent/JPH0542487Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0542487Y2 (en) | 1993-10-26 |