JPH0459677U - - Google Patents
Info
- Publication number
- JPH0459677U JPH0459677U JP10133490U JP10133490U JPH0459677U JP H0459677 U JPH0459677 U JP H0459677U JP 10133490 U JP10133490 U JP 10133490U JP 10133490 U JP10133490 U JP 10133490U JP H0459677 U JPH0459677 U JP H0459677U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- output
- power supply
- variable power
- adder
- 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 3
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Details Of Television Scanning (AREA)
Description
第１図は本考案に係る過電流保護回路の一例の
回路図、第２図は同可変電源の特性図、第３図は
同加算器の入出力信号特性図、第４図は従来の過
電流保護回路の一例の回路図、第５図は従来の過
電流保護回路と可変電源の負荷電流との関係を示
す図である。
１……過電流保護回路、２……電流検出手段、
３……Ｆ／Ｖコンバータ、４……加算器、５……
コンパレータ。
Fig. 1 is a circuit diagram of an example of the overcurrent protection circuit according to the present invention, Fig. 2 is a characteristic diagram of the variable power supply, Fig. 3 is an input/output signal characteristic diagram of the adder, and Fig. 4 is a conventional overcurrent protection circuit. FIG. 5, which is a circuit diagram of an example of a current protection circuit, is a diagram showing the relationship between a conventional overcurrent protection circuit and a load current of a variable power supply. 1... Overcurrent protection circuit, 2... Current detection means,
3...F/V converter, 4...Adder, 5...
comparator.
Claims (1)
せる可変電源を備え、この可変電源の出力電圧で
偏向高圧回路を駆動するデイスプレイ表示装置に
おいて、この可変電源の出力電流を検出する電流
検出手段と、水平同期信号の周波数を直流電圧に
変換する変換器と、この変換器の出力と前記電流
検出手段の入力側又は出力側の分圧した電圧いず
れか一方とを加算する加算器と、この加算器の出
力と前記分圧した電圧のうち他方の電圧とを互に
比較しその結果を出力する電圧比較手段とを備え
た過電流保護回路を設けたことを特徴とするデイ
スプレイ表示装置。 A display device comprising a variable power supply that automatically follows a horizontal input signal to change the output voltage and drives a deflection high voltage circuit with the output voltage of the variable power supply, current detection means for detecting the output current of the variable power supply; A converter that converts the frequency of a horizontal synchronizing signal into a DC voltage, an adder that adds the output of this converter and either the divided voltage on the input side or the output side of the current detection means, and this adder. 1. A display device comprising an overcurrent protection circuit comprising voltage comparison means for comparing the output of the voltage with the other voltage of the divided voltages and outputting the result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10133490U JPH0459677U (en) | 1990-09-27 | 1990-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10133490U JPH0459677U (en) | 1990-09-27 | 1990-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0459677U true JPH0459677U (en) | 1992-05-21 |
Family
ID=31844699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10133490U Pending JPH0459677U (en) | 1990-09-27 | 1990-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0459677U (en) |
-
1990
- 1990-09-27 JP JP10133490U patent/JPH0459677U/ja active Pending
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