JPS635513U - - Google Patents
Info
- Publication number
- JPS635513U JPS635513U JP9772486U JP9772486U JPS635513U JP S635513 U JPS635513 U JP S635513U JP 9772486 U JP9772486 U JP 9772486U JP 9772486 U JP9772486 U JP 9772486U JP S635513 U JPS635513 U JP S635513U
- Authority
- JP
- Japan
- Prior art keywords
- pnp transistor
- constant voltage
- circuit
- short
- voltage circuit
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Voltage And Current In General (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
Description
第１図は本考案の一実施例を示す定電圧回路図
、第２図は短絡保護回路の一実施例を示す回路図
、第３図は従来の定電圧回路図である。
１：入力端子、２：トランジスタ、４：三端子
レギユレータ、５：出力端子、６：短絡保護回路
、７：エミツタに接続する端子、８：コレクタに
接続する端子、１１，１６，１８：トランジスタ
、１２：ダイオード、１９：ベースに接続する端
子。
FIG. 1 is a constant voltage circuit diagram showing an embodiment of the present invention, FIG. 2 is a circuit diagram showing an embodiment of a short circuit protection circuit, and FIG. 3 is a conventional constant voltage circuit diagram. 1: Input terminal, 2: Transistor, 4: Three-terminal regulator, 5: Output terminal, 6: Short-circuit protection circuit, 7: Terminal connected to emitter, 8: Terminal connected to collector, 11, 16, 18: Transistor, 12: Diode, 19: Terminal connected to the base.
Claims (1)
る定電圧回路において、この定電圧回路の出力側
である前記ＰＮＰトランジスタのコレクタ電圧が
短絡したとき、前記ＰＮＰトランジスタがしや断
状態となるようにエミツタ、ベース間電圧を同電
位にする短絡保護回路を付加したことを特徴とす
る定電圧回路。 In a constant voltage circuit composed of a PNP transistor and a regulator, the voltage between the emitter and the base is adjusted so that when the collector voltage of the PNP transistor, which is the output side of the constant voltage circuit, is short-circuited, the PNP transistor is suddenly cut off. A constant voltage circuit characterized by the addition of a short-circuit protection circuit that brings the voltages to the same potential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9772486U JPS635513U (en) | 1986-06-27 | 1986-06-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9772486U JPS635513U (en) | 1986-06-27 | 1986-06-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS635513U true JPS635513U (en) | 1988-01-14 |
Family
ID=30964972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9772486U Pending JPS635513U (en) | 1986-06-27 | 1986-06-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS635513U (en) |
-
1986
- 1986-06-27 JP JP9772486U patent/JPS635513U/ja active Pending
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