JPH02149415U - - Google Patents
Info
- Publication number
- JPH02149415U JPH02149415U JP5852989U JP5852989U JPH02149415U JP H02149415 U JPH02149415 U JP H02149415U JP 5852989 U JP5852989 U JP 5852989U JP 5852989 U JP5852989 U JP 5852989U JP H02149415 U JPH02149415 U JP H02149415U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- power supply
- resistor
- zener diode
- load
- 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
- Continuous-Control Power Sources That Use Transistors (AREA)
Description
第１図は本考案に係る直流電源回路の回路図、
第２図、第３図及び第４図は本考案の他の実施例
を示す直流電源回路の回路図、第５図は従来の直
流電源回路の回路図である。
Ｅ……直流電源、Ｌ……負荷、Ｑ１，Ｑ２……
トランジスタ、ＺＤ１……ツエナーダイオード、
Ｒ１，Ｒ２……抵抗。
Figure 1 is a circuit diagram of a DC power supply circuit according to the present invention,
2, 3, and 4 are circuit diagrams of a DC power supply circuit showing other embodiments of the present invention, and FIG. 5 is a circuit diagram of a conventional DC power supply circuit. E...DC power supply, L...Load, Q1, Q2...
Transistor, ZD1... Zener diode,
R1, R2...Resistance.
Claims (1)
ンジスタにより制御すべくなしてある直流電源回
路において、 前記第１のトランジスタの負荷接続側を、ツエ
ナーダイオードと抵抗との直列回路を介して接地
しており、前記ツエナーダイオードと抵抗との接
続点の電位で前記第１のトランジスタの電流を制
御する第２のトランジスタを設けていることを特
徴とする直流電源回路。[Claims for Utility Model Registration] In a DC power supply circuit in which the current supplied from the DC power supply to the load is controlled by a first transistor, the load connection side of the first transistor is connected to a Zener diode and a resistor. A DC power supply circuit comprising: a second transistor that is grounded via a series circuit and controls the current of the first transistor using a potential at a connection point between the Zener diode and the resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5852989U JPH02149415U (en) | 1989-05-19 | 1989-05-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5852989U JPH02149415U (en) | 1989-05-19 | 1989-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02149415U true JPH02149415U (en) | 1990-12-20 |
Family
ID=31584222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5852989U Pending JPH02149415U (en) | 1989-05-19 | 1989-05-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02149415U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62231320A (en) * | 1986-03-31 | 1987-10-09 | Keyence Corp | Power source circuit |
-
1989
- 1989-05-19 JP JP5852989U patent/JPH02149415U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62231320A (en) * | 1986-03-31 | 1987-10-09 | Keyence Corp | Power source circuit |