JPS62154516U - - Google Patents
Info
- Publication number
- JPS62154516U JPS62154516U JP4185186U JP4185186U JPS62154516U JP S62154516 U JPS62154516 U JP S62154516U JP 4185186 U JP4185186 U JP 4185186U JP 4185186 U JP4185186 U JP 4185186U JP S62154516 U JPS62154516 U JP S62154516U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- amplifier
- zener
- input terminal
- 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 2
Landscapes
- Control Of Voltage And Current In General (AREA)
Description
第１図乃至第７図はこの考案に係る定電圧回路
の実施例を示すものであつて、第１図、第２図、
第４図、第６図は第１、第２、第３、第４の実施
例を示す回路図、第３図、第５図、第７図は各回
路の特性を示すグラフである。第８図および第９
図は、従来の定電圧回路を示すもので、第８図は
回路図、第９図は特性を示すグラフである。
ＩＣ１；オペアンプ、Ｄ１；ツエナーダイオー
ド、Ｄ２；スイツチングダイオード、Ｒ４，Ｒ５
；分圧回路を構成する抵抗、Ｖｃｃ；電源電圧、
Ｖ０１；出力電圧。
1 to 7 show examples of the constant voltage circuit according to this invention, and FIGS.
4 and 6 are circuit diagrams showing the first, second, third, and fourth embodiments, and FIGS. 3, 5, and 7 are graphs showing the characteristics of each circuit. Figures 8 and 9
The figures show a conventional constant voltage circuit, with FIG. 8 being a circuit diagram and FIG. 9 being a graph showing characteristics. IC1; operational amplifier, D1; Zener diode, D2; switching diode, R4, R5
; Resistance that constitutes the voltage dividing circuit, Vcc; Power supply voltage,
V 01 ; Output voltage.
Claims (1)
記増幅器の出力がツエナー電圧に達つした時オン
となるツエナーダイオードと、前記増幅器の出力
を分圧する分圧抵抗器とより成り、前記ツエナー
電圧を前記増幅器の基準となる一方の入力端子に
印加すると共に前記分圧抵抗器による分電圧を前
記増幅器の他方の入力端子に帰還入力した定電圧
回路において、前記一方の入力端子に電源投入時
、前記ツエナー電圧に達つするまでの電圧をスイ
ツチング素子を介して印加させる初期設定手段を
設けたことを特徴とする定電圧回路。 (2) 前記初期設定手段は電源電圧を分圧する分
圧回路と、核分電圧をスイツチング制御するダイ
オードを介して出力するようにして構成したこと
を特徴とする実用新案登録請求の範囲第１項記載
の定電圧回路。[Claims for Utility Model Registration] (1) An amplifier using two power supplies, a Zener diode that turns on when the output of the amplifier reaches the Zener voltage when the power is turned on, and a voltage divider that divides the output of the amplifier. In a constant voltage circuit comprising a piezoresistor, the Zener voltage is applied to one input terminal serving as a reference of the amplifier, and the voltage divided by the voltage dividing resistor is fed back to the other input terminal of the amplifier, A constant voltage circuit characterized in that an initial setting means is provided for applying a voltage until the Zener voltage is reached to the one input terminal through a switching element when the power is turned on. (2) Utility model registration claim 1, characterized in that the initial setting means is configured to output via a voltage dividing circuit that divides the power supply voltage and a diode that performs switching control of the core voltage. The constant voltage circuit described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4185186U JPS62154516U (en) | 1986-03-24 | 1986-03-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4185186U JPS62154516U (en) | 1986-03-24 | 1986-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62154516U true JPS62154516U (en) | 1987-10-01 |
Family
ID=30857225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4185186U Pending JPS62154516U (en) | 1986-03-24 | 1986-03-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62154516U (en) |
-
1986
- 1986-03-24 JP JP4185186U patent/JPS62154516U/ja active Pending
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