JPS63138880U - - Google Patents
Info
- Publication number
- JPS63138880U JPS63138880U JP3097687U JP3097687U JPS63138880U JP S63138880 U JPS63138880 U JP S63138880U JP 3097687 U JP3097687 U JP 3097687U JP 3097687 U JP3097687 U JP 3097687U JP S63138880 U JPS63138880 U JP S63138880U
- Authority
- JP
- Japan
- Prior art keywords
- converter
- output
- circuit
- terminal
- output 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
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案の一実施例を示す回路図。第２
図従来例を示す回路図。
１〜８……抵抗器、９，１３……シヤントレギ
ユレータ、１０，１１……トランジスタ、１２…
…ダイオード、１４……動作停止信号送出回路、
１５……ＤＣ―ＤＣコンバータ、１６，１７……
入力端子、１８……出力端子、１９……接地端子
、２０……別電源端子。
FIG. 1 is a circuit diagram showing an embodiment of the present invention. Second
FIG. 1 is a circuit diagram showing a conventional example. 1 to 8...Resistor, 9,13...Shunt regulator, 10,11...Transistor, 12...
...Diode, 14...Operation stop signal sending circuit,
15...DC-DC converter, 16,17...
Input terminal, 18...output terminal, 19...ground terminal, 20...separate power supply terminal.
Claims (1)
に接続され、上記ＤＣ―ＤＣコンバータの出力電
圧の過電圧を検出し制御信号を動作停止信号送出
回路に出力する過電圧検出回路３，４，８，１３
と、 上記出力端子と接地端子間に接続され上記出力
電圧の不足電圧を検出し制御信号を上記過電圧保
護回路を介して上記動作停止送出回路に出力する
不足電圧検出回路１，２，５，９，１２と を含むＤＣ―ＤＣコンバータの保護回路において
、 上記ＤＣ―ＤＣコンバータの起動時に、その出
力電圧が規定値に達するまでの間、上記不足電圧
検出回路の出力端と接地端子間を短絡する短絡回
路６，７，１０，１１を設けた ことを特徴とするＤＣ―ＤＣコンバータの保護回
路。[Claims for Utility Model Registration] An overvoltage detection circuit connected between the output terminal and the ground terminal of the DC-DC converter, which detects overvoltage of the output voltage of the DC-DC converter and outputs a control signal to an operation stop signal sending circuit. 3, 4, 8, 13
and undervoltage detection circuits 1, 2, 5, and 9 connected between the output terminal and the ground terminal to detect an undervoltage of the output voltage and output a control signal to the operation stop sending circuit via the overvoltage protection circuit. , 12, when the DC-DC converter is started, the output terminal of the undervoltage detection circuit and the ground terminal are short-circuited until the output voltage reaches a specified value. A protection circuit for a DC-DC converter, characterized in that short circuits 6, 7, 10, and 11 are provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3097687U JPS63138880U (en) | 1987-03-03 | 1987-03-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3097687U JPS63138880U (en) | 1987-03-03 | 1987-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63138880U true JPS63138880U (en) | 1988-09-13 |
Family
ID=30836280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3097687U Pending JPS63138880U (en) | 1987-03-03 | 1987-03-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63138880U (en) |
-
1987
- 1987-03-03 JP JP3097687U patent/JPS63138880U/ja active Pending
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