JPS61120919U - - Google Patents
Info
- Publication number
- JPS61120919U JPS61120919U JP62785U JP62785U JPS61120919U JP S61120919 U JPS61120919 U JP S61120919U JP 62785 U JP62785 U JP 62785U JP 62785 U JP62785 U JP 62785U JP S61120919 U JPS61120919 U JP S61120919U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- output
- circuit
- detection circuit
- transistor
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 2
Landscapes
- Control Of Electrical Variables (AREA)
Description
第１図はこの考案の一実施例を示す概略図、第
２図は第１図に使用される検知回路の特性図、第
３図は従来の電源装置の概略図、第４図は第３図
のＡ回路の抵抗回路図、第５図は第３図のＡ回路
の概略図である。
図において、１は制御回路、２は電源トランス
、３は整流フイルタ、４は過電圧防止回路、５は
電気回路、６は電源回路、７は抵抗回路、８はト
ランジスタ、９は基準電圧発生回路、１０は保護
抵抗、１１は検知回路、ＶＩＮは入力電圧、Ｖｏ
１は電源回路出力電圧、Ｖｏ２は過電圧防止回路
出力電圧、ＶＡは検知回路出力電圧、ＶＢは上限
設定電圧、Ｉは電源回路出力電流である。なお、
図中同一符号は同一または相当部分を示す。
Fig. 1 is a schematic diagram showing an embodiment of this invention, Fig. 2 is a characteristic diagram of the detection circuit used in Fig. 1, Fig. 3 is a schematic diagram of a conventional power supply device, and Fig. 4 is a diagram showing the characteristics of the detection circuit used in Fig. 1. FIG. 5 is a schematic diagram of the A circuit shown in FIG. 3. In the figure, 1 is a control circuit, 2 is a power transformer, 3 is a rectifying filter, 4 is an overvoltage prevention circuit, 5 is an electric circuit, 6 is a power supply circuit, 7 is a resistance circuit, 8 is a transistor, 9 is a reference voltage generation circuit, 10 is a protection resistor, 11 is a detection circuit, VIN is an input voltage, Vo
1 is the power supply circuit output voltage, Vo2 is the overvoltage prevention circuit output voltage, VA is the detection circuit output voltage, VB is the upper limit setting voltage, and I is the power supply circuit output current. In addition,
The same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
において、電源装置の出力の電圧に比例した信号
を発生する検知回路と、この検知回路の出力によ
り、電源装置の出力電圧を制御するトランジスタ
と、このトランジスタの電流を制限する電流制限
抵抗と、電源装置の出力電力で動作する電気回路
とを具備したことを特徴とする電源装置。 An isolated power supply that can operate by supplying input voltage includes a detection circuit that generates a signal proportional to the output voltage of the power supply, a transistor that controls the output voltage of the power supply using the output of this detection circuit, and A power supply device comprising: a current limiting resistor that limits the current of a transistor; and an electric circuit that operates with the output power of the power supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62785U JPS61120919U (en) | 1985-01-08 | 1985-01-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62785U JPS61120919U (en) | 1985-01-08 | 1985-01-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61120919U true JPS61120919U (en) | 1986-07-30 |
Family
ID=30472639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62785U Pending JPS61120919U (en) | 1985-01-08 | 1985-01-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61120919U (en) |
-
1985
- 1985-01-08 JP JP62785U patent/JPS61120919U/ja active Pending