JPH0486913U - - Google Patents
Info
- Publication number
- JPH0486913U JPH0486913U JP13009490U JP13009490U JPH0486913U JP H0486913 U JPH0486913 U JP H0486913U JP 13009490 U JP13009490 U JP 13009490U JP 13009490 U JP13009490 U JP 13009490U JP H0486913 U JPH0486913 U JP H0486913U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- voltage
- power supply
- power source
- supply voltage
- 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
- Continuous-Control Power Sources That Use Transistors (AREA)
- Control Of Electrical Variables (AREA)
Description
第１図は本考案の実施例を示す回路図、第２図
は従来のレギユレータ回路を示す回路図である。
図中、１……電子機器、２……比較回路、３…
…バツテリ、Ｒ１，Ｒ２，Ｒ１０〜Ｒ１２……抵
抗、Ｑ１，Ｑ２……トランジスタ、ＺＤ１，ＺＤ
２……ツエナダイオード。
FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIG. 2 is a circuit diagram showing a conventional regulator circuit. In the figure, 1...electronic equipment, 2...comparison circuit, 3...
...Battery, R1, R2, R10-R12...Resistor, Q1, Q2...Transistor, ZD1, ZD
2...Zena diode.
Claims (1)
該トランジスタを制御して、電源からトランジス
タを介して負荷へ与えられる電圧を所定値にする
制御部とを具備するレギユレータ回路において、 前記電源とトランジスタとの間に設けられた抵
抗と、 電源電圧と所定の基準電圧とを比較して、比較
結果に対応する比較信号を出力する比較部と、 前記比較信号によつて制御され、電源電圧の方
が高ければ前記抵抗を介して電源電圧を前記トラ
ンジスタに供給し、また電源電圧の方が低ければ
前記抵抗を介さずに電源電圧を前記トランジスタ
に供給するスイツチング手段とを備えたことを特
徴とするレギユレータ回路。[Claims for Utility Model Registration] A transistor interposed between a power source and a load,
A regulator circuit comprising: a control unit that controls the transistor to set a voltage applied from the power source to the load via the transistor to a predetermined value; a resistor provided between the power source and the transistor; a power source voltage; a comparison unit that compares the voltage with a predetermined reference voltage and outputs a comparison signal corresponding to the comparison result, and is controlled by the comparison signal, and if the power supply voltage is higher, the power supply voltage is applied to the transistor through the resistor. and switching means for supplying the power supply voltage to the transistor without going through the resistor if the power supply voltage is lower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13009490U JPH0486913U (en) | 1990-11-30 | 1990-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13009490U JPH0486913U (en) | 1990-11-30 | 1990-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0486913U true JPH0486913U (en) | 1992-07-28 |
Family
ID=31877463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13009490U Pending JPH0486913U (en) | 1990-11-30 | 1990-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0486913U (en) |
-
1990
- 1990-11-30 JP JP13009490U patent/JPH0486913U/ja active Pending