JPH01135514U - - Google Patents
Info
- Publication number
- JPH01135514U JPH01135514U JP3208088U JP3208088U JPH01135514U JP H01135514 U JPH01135514 U JP H01135514U JP 3208088 U JP3208088 U JP 3208088U JP 3208088 U JP3208088 U JP 3208088U JP H01135514 U JPH01135514 U JP H01135514U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power supply
- voltage
- base
- control 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 2
Landscapes
- Continuous-Control Power Sources That Use Transistors (AREA)
Description
第１図は本考案の電源供給回路の回路図、第２
図は従来の電源供給回路の回路図である。
１……入力端子、２……出力端子、３……定電
圧回路、４……バンド切換回路（内部電源を有す
る回路）、Ｔｒ１……制御トランジスタ、ＺＤ２
……ツエナーダイオード（残留電圧遮断用の回路
）。
Figure 1 is a circuit diagram of the power supply circuit of the present invention;
The figure is a circuit diagram of a conventional power supply circuit. 1... Input terminal, 2... Output terminal, 3... Constant voltage circuit, 4... Band switching circuit (circuit with internal power supply), Tr 1 ... Control transistor, ZD 2
...Zener diode (circuit for cutting off residual voltage).
Claims (1)
定電圧回路の出力電圧を内部電源を有する回路の
動作電圧として印加すると共に前記出力電圧を入
出力端間にコレクタ・エミツタ路が接続された制
御トランジスタのベースに印加する電源供給回路
において、前記定電圧回路と前記内部電源を有す
る回路との接続点と、前記制御トランジスタのベ
ースとの間に残留電圧遮断用の回路を設けたこと
を特徴とする電源供給回路。 The output voltage of a constant voltage circuit, which is controlled on and off by a control signal, is applied as the operating voltage of a circuit having an internal power supply, and the output voltage is applied to the base of a control transistor whose collector-emitter path is connected between the input and output terminals. In the power supply circuit for applying power, a circuit for cutting off residual voltage is provided between a connection point between the constant voltage circuit and the circuit having the internal power supply and the base of the control transistor. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3208088U JPH0530175Y2 (en) | 1988-03-10 | 1988-03-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3208088U JPH0530175Y2 (en) | 1988-03-10 | 1988-03-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01135514U true JPH01135514U (en) | 1989-09-18 |
| JPH0530175Y2 JPH0530175Y2 (en) | 1993-08-02 |
Family
ID=31258386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3208088U Expired - Lifetime JPH0530175Y2 (en) | 1988-03-10 | 1988-03-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0530175Y2 (en) |
-
1988
- 1988-03-10 JP JP3208088U patent/JPH0530175Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0530175Y2 (en) | 1993-08-02 |