JPH02130010U - - Google Patents
Info
- Publication number
- JPH02130010U JPH02130010U JP3951089U JP3951089U JPH02130010U JP H02130010 U JPH02130010 U JP H02130010U JP 3951089 U JP3951089 U JP 3951089U JP 3951089 U JP3951089 U JP 3951089U JP H02130010 U JPH02130010 U JP H02130010U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- power supply
- output
- connection point
- supply line
- 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
- 230000006641 stabilisation Effects 0.000 claims 2
- 238000011105 stabilization Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Continuous-Control Power Sources That Use Transistors (AREA)
Description
第１図は本考案の電源安定化回路を示す回路図
、第２図は第１図の特性を示す特性図である。
１４……基準電圧源、１５，１６，１７……抵
抗、１８，２０……誤差増幅器、１９，２１……
トランジスタ。
FIG. 1 is a circuit diagram showing the power supply stabilizing circuit of the present invention, and FIG. 2 is a characteristic diagram showing the characteristics of FIG. 1. 14... Reference voltage source, 15, 16, 17... Resistor, 18, 20... Error amplifier, 19, 21...
transistor.
Claims (1)
電源ラインと、 前記リツプルを除去する為のリツプル除去回路
と、 該リツプル除去回路の出力電圧が印加される第
２電源ラインと、 該第２電源ラインとアースとの間に直列接続さ
れた複数の抵抗と、 該複数の抵抗の第１接続点に得られる電圧を出
力電圧として導出する出力回路と、 基準電圧と前記複数の抵抗の第２接続点に得ら
れる電圧とを比較し、前記第１接続点に得られる
電圧を定電圧化する為の手段とから成り、 前記第２電源ラインの電圧が所定値以上の時、
前記第１接続点から定電圧出力を発生し、所定値
未満の時、前記第１接続点から前記第２電源ライ
ンの電圧の分圧出力を発生する様にしたことを特
徴とする電源安定化回路。 (2) 前記出力回路は、コレクタ・エミツタ路が
前記第１電源ラインと接続されたトランジスタを
有し、該トランジスタのコレクタ・エミツタ路か
ら出力電圧を導出することを特徴とした請求項(1
)記載の電源安定化回路。[Scope of claims for utility model registration] (1) The first
A power supply line, a ripple removal circuit for removing the ripple, a second power supply line to which the output voltage of the ripple removal circuit is applied, and a plurality of power supply lines connected in series between the second power supply line and ground. a resistor; an output circuit that derives the voltage obtained at a first connection point of the plurality of resistors as an output voltage; and a reference voltage and a voltage obtained at a second connection point of the plurality of resistances, and means for making the voltage obtained at the connection point a constant voltage, and when the voltage of the second power supply line is above a predetermined value,
The power source stabilization is characterized in that a constant voltage output is generated from the first connection point, and when the voltage is less than a predetermined value, a divided voltage output of the voltage of the second power line is generated from the first connection point. circuit. (2) Claim (1) characterized in that the output circuit includes a transistor whose collector-emitter path is connected to the first power supply line, and the output voltage is derived from the collector-emitter path of the transistor.
) described power supply stabilization circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3951089U JPH02130010U (en) | 1989-04-03 | 1989-04-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3951089U JPH02130010U (en) | 1989-04-03 | 1989-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02130010U true JPH02130010U (en) | 1990-10-26 |
Family
ID=31548481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3951089U Pending JPH02130010U (en) | 1989-04-03 | 1989-04-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02130010U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020179250A1 (en) * | 2019-03-01 | 2020-09-10 | 日立オートモティブシステムズ株式会社 | Semiconductor integrated circuit |
-
1989
- 1989-04-03 JP JP3951089U patent/JPH02130010U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020179250A1 (en) * | 2019-03-01 | 2020-09-10 | 日立オートモティブシステムズ株式会社 | Semiconductor integrated circuit |
| JPWO2020179250A1 (en) * | 2019-03-01 | 2021-10-14 | 日立Astemo株式会社 | Semiconductor integrated circuit |
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