JPS6356829U - - Google Patents
Info
- Publication number
- JPS6356829U JPS6356829U JP14875586U JP14875586U JPS6356829U JP S6356829 U JPS6356829 U JP S6356829U JP 14875586 U JP14875586 U JP 14875586U JP 14875586 U JP14875586 U JP 14875586U JP S6356829 U JPS6356829 U JP S6356829U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- control
- switching
- voltage
- switching 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Electronic Switches (AREA)
Description
第１図は本考案の一実施例の回路図。第２図は
本考案の一実施例の作用の説明に供する線図。第
３図は従来例の回路図。
ＢＡＴ……電源、ＲＬ……負荷、２……スイツ
チングトランジスタ、４および１３……トランジ
スタ。
FIG. 1 is a circuit diagram of an embodiment of the present invention. FIG. 2 is a diagram for explaining the operation of an embodiment of the present invention. FIG. 3 is a circuit diagram of a conventional example. BAT...power supply, RL...load, 2...switching transistor, 4 and 13...transistor.
Claims (1)
ジスタのみを接続し、制御電圧によりオン・オフ
駆動されてスイツチングトランジスタをオン・オ
フ制御する第１制御トランジスタと、スイツチン
グトランジスタのコレクタ・エミツタ間の電圧を
検出し、この電圧が所定値を超えたときスイツチ
ングトランジスタを第１制御トランジスタによる
制御に優先してオフ状態にする第２制御トランジ
スタとを備えたことを特徴とするトランジスタス
イツチング回路。 Only the switching transistor is connected in series between the power supply and the load, and the first control transistor is driven on and off by the control voltage to control the switching transistor on and off, and the transistor between the collector and emitter of the switching transistor. A transistor switching circuit comprising: a second control transistor that detects a voltage and turns off the switching transistor with priority over control by the first control transistor when the voltage exceeds a predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986148755U JPH0749869Y2 (en) | 1986-09-30 | 1986-09-30 | Transistor switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986148755U JPH0749869Y2 (en) | 1986-09-30 | 1986-09-30 | Transistor switching circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6356829U true JPS6356829U (en) | 1988-04-15 |
| JPH0749869Y2 JPH0749869Y2 (en) | 1995-11-13 |
Family
ID=31063324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986148755U Expired - Lifetime JPH0749869Y2 (en) | 1986-09-30 | 1986-09-30 | Transistor switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0749869Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5939541U (en) * | 1982-09-06 | 1984-03-13 | 株式会社東芝 | power switch circuit |
| JPS60181927U (en) * | 1984-05-15 | 1985-12-03 | 株式会社東芝 | Transistor switching circuit with protection function |
-
1986
- 1986-09-30 JP JP1986148755U patent/JPH0749869Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5939541U (en) * | 1982-09-06 | 1984-03-13 | 株式会社東芝 | power switch circuit |
| JPS60181927U (en) * | 1984-05-15 | 1985-12-03 | 株式会社東芝 | Transistor switching circuit with protection function |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0749869Y2 (en) | 1995-11-13 |