JPS6137515U - Constant voltage power supply circuit - Google Patents
Constant voltage power supply circuitInfo
- Publication number
- JPS6137515U JPS6137515U JP12028084U JP12028084U JPS6137515U JP S6137515 U JPS6137515 U JP S6137515U JP 12028084 U JP12028084 U JP 12028084U JP 12028084 U JP12028084 U JP 12028084U JP S6137515 U JPS6137515 U JP S6137515U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- power supply
- constant voltage
- supply circuit
- voltage power
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例を示す図、第２図は、比較の
ための従来例を示す図である。
１：非安定なＤＣ入力端子、２：２次電池、３：定電流
回路、５：一電源スイッチ、６：レギュレータ、７：レ
ギュレータ出力、８：負荷、９：トランジスタ、１０：
ツエナーダイオード、１３：第１の抵抗、１４：第２の
スイッチ、１５：第２の抵抗。FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing a conventional example for comparison. 1: Unstable DC input terminal, 2: Secondary battery, 3: Constant current circuit, 5: Power switch, 6: Regulator, 7: Regulator output, 8: Load, 9: Transistor, 10:
Zener diode, 13: first resistor, 14: second switch, 15: second resistor.
Claims (1)
スと非安定なＤＣ電圧入力端子との間にそれぞれが接続
される抵抗及びツエナーダイオードと、このツエナーダ
イオードの他の端子の接地抵抗とを有する定電流回路と
、この定電流回路出力端に接続される２次電池と電源ス
イッチを介して接続されるレギュレータとを有し、この
レギュレータ出力を負荷に供給する定電圧電源回路にお
いて前言部℃電圧入力端子とエミツタ間に接続される抵
抗が前記負荷の必要十分電流を決定する第１の抵抗と前
記電源のスイッチと連動する第２のスイッチと直列接続
されて、この直列回路が前記第１の抵抗と並列に接続さ
れ、この並列抵抗が電源スイッチＯＮ時の負荷電澹と２
次電池の充電々流双方を供給できる抵抗値！こ設定され
る第２の抵抗とを有することを特徴とする定電圧電源回
路。a constant current circuit having a transistor, a resistor and a Zener diode each connected between the emitter and base of the transistor and an unstable DC voltage input terminal, and a grounding resistor at the other terminal of the Zener diode; In a constant voltage power supply circuit that has a secondary battery connected to the output terminal of this constant current circuit and a regulator connected via a power switch, and supplies the output of this regulator to a load, the front part is connected between the voltage input terminal and the emitter. A resistor connected to is connected in series with a first resistor that determines the necessary and sufficient current of the load and a second switch that operates in conjunction with the switch of the power supply, and this series circuit is connected in parallel with the first resistor. This parallel resistance is equal to the load current when the power switch is turned on.
Resistance value that can supply both charge and current to the next battery! A constant voltage power supply circuit characterized in that it has a second resistor set as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12028084U JPS6137515U (en) | 1984-08-06 | 1984-08-06 | Constant voltage power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12028084U JPS6137515U (en) | 1984-08-06 | 1984-08-06 | Constant voltage power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6137515U true JPS6137515U (en) | 1986-03-08 |
Family
ID=30679108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12028084U Pending JPS6137515U (en) | 1984-08-06 | 1984-08-06 | Constant voltage power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6137515U (en) |
-
1984
- 1984-08-06 JP JP12028084U patent/JPS6137515U/en active Pending
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