JPH0161832U - - Google Patents
Info
- Publication number
- JPH0161832U JPH0161832U JP15622987U JP15622987U JPH0161832U JP H0161832 U JPH0161832 U JP H0161832U JP 15622987 U JP15622987 U JP 15622987U JP 15622987 U JP15622987 U JP 15622987U JP H0161832 U JPH0161832 U JP H0161832U
- Authority
- JP
- Japan
- Prior art keywords
- control transistor
- base
- emitter
- load
- transistor
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Emergency Protection Circuit Devices (AREA)
Description
第１図は本考案の実施例を示す電流制限回路の
回路図、第２図及び第３図は従来の電流制限回路
の回路図である。
なお図面に用いた符号において、Ｑ１……シリ
ーズ制御トランジスタ、Ｑ２……電流制限トラン
ジスタ、Ｌ……負荷、Ｒ０……負荷電流検出抵抗
、Ｒｖ……可変抵抗、である。
FIG. 1 is a circuit diagram of a current limiting circuit showing an embodiment of the present invention, and FIGS. 2 and 3 are circuit diagrams of conventional current limiting circuits. In addition, in the symbols used in the drawings, Q1 ...series control transistor, Q2 ...current limiting transistor, L...load, R0 ...load current detection resistor, Rv...variable resistor.
Claims (1)
、そのエミツタ出力に直列接続された負荷電流検
出抵抗と、上記制御トランジスタのベース・エミ
ツタ間に固定端子が接続された可変抵抗と、上記
可変抵抗の可動端子がベースに接続され、エミツ
タが上記負荷電流検出抵抗の一端に接続され且つ
コレクタが上記制御トランジスタのベースに接続
された電流制限トランジスタとを夫々具備する電
流制限回路。 A control transistor that supplies direct current to a load, a load current detection resistor connected in series to its emitter output, a variable resistor with a fixed terminal connected between the base and emitter of the control transistor, and a movable terminal of the variable resistor. a current limiting transistor having a base connected to the control transistor, an emitter connected to one end of the load current detection resistor, and a collector connected to the base of the control transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15622987U JPH0161832U (en) | 1987-10-13 | 1987-10-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15622987U JPH0161832U (en) | 1987-10-13 | 1987-10-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0161832U true JPH0161832U (en) | 1989-04-20 |
Family
ID=31434582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15622987U Pending JPH0161832U (en) | 1987-10-13 | 1987-10-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0161832U (en) |
-
1987
- 1987-10-13 JP JP15622987U patent/JPH0161832U/ja active Pending