JPS6244638U - - Google Patents
Info
- Publication number
- JPS6244638U JPS6244638U JP13611185U JP13611185U JPS6244638U JP S6244638 U JPS6244638 U JP S6244638U JP 13611185 U JP13611185 U JP 13611185U JP 13611185 U JP13611185 U JP 13611185U JP S6244638 U JPS6244638 U JP S6244638U
- Authority
- JP
- Japan
- Prior art keywords
- switching
- transistor
- prevention circuit
- switching regulator
- series
- 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
- 230000002265 prevention Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Protection Of Static Devices (AREA)
- Dc-Dc Converters (AREA)
Description
第１図は本考案の原理ブロツク図、第２図は本
考案の実施例を示す回路図、第３図は従来の過負
荷防止回路を用いたスイツチングレギユレータで
ある。
図において、１はスイツチングレギユレータの
主要部、２は発振スイツチング回路、１１は遅延
信号発生回路、１３は過負荷防止回路、１４は過
電流検出素子、１５はＳＣＲ素子、１７はスイツ
チ素子である。また、Ｃ１〜Ｃ９はコンデンサ、
Ｄ０〜Ｄ５はダイオード、Ｒ１〜Ｒ１４は抵抗、
Ｐ，Ｌ，Ｄ，Ｒ，ＳはトランスＴの巻線である。
FIG. 1 is a block diagram of the principle of the present invention, FIG. 2 is a circuit diagram showing an embodiment of the present invention, and FIG. 3 is a switching regulator using a conventional overload prevention circuit. In the figure, 1 is the main part of the switching regulator, 2 is the oscillation switching circuit, 11 is the delay signal generation circuit, 13 is the overload prevention circuit, 14 is the overcurrent detection element, 15 is the SCR element, and 17 is the switch element. It is. In addition, C 1 to C 9 are capacitors,
D0 to D5 are diodes, R1 to R14 are resistors,
P, L, D, R, and S are the windings of the transformer T.
Claims (1)
ンジスタに直列に接続した過電流検出素子１４と
、該検出素子の端子電圧をゲート入力とし、その
導通によつて上記主スイツチングトランジスタの
動作を制限するＳＣＲ素子１５および交流入力の
突入電流防止回路１２を備えたスイツチングレギ
ユレータ構成の電源回路において、 前記ＳＣＲ素子１５に直列にスイツチング素子
１７を設け、前記突入電流防止回路の為の遅延信
号により該スイツチング素子１７を導通させるよ
う構成して成ることを特徴とするスイツチングレ
ギユレータの過負荷防止回路。[Claims for Utility Model Registration] A main switching transistor Tr 1 , an overcurrent detection element 14 connected in series with the transistor, and a terminal voltage of the detection element as a gate input, and conduction thereof causes the main switching In a power supply circuit having a switching regulator configuration, which includes an SCR element 15 that limits the operation of a transistor and an AC input inrush current prevention circuit 12, a switching element 17 is provided in series with the SCR element 15, and the inrush current prevention circuit 1. An overload prevention circuit for a switching regulator, characterized in that the switching element 17 is made conductive by a delayed signal for the switching regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13611185U JPS6244638U (en) | 1985-09-04 | 1985-09-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13611185U JPS6244638U (en) | 1985-09-04 | 1985-09-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6244638U true JPS6244638U (en) | 1987-03-18 |
Family
ID=31038924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13611185U Pending JPS6244638U (en) | 1985-09-04 | 1985-09-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6244638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0241652A (en) * | 1988-08-01 | 1990-02-09 | Furuno Electric Co Ltd | Dc power equipment |
-
1985
- 1985-09-04 JP JP13611185U patent/JPS6244638U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0241652A (en) * | 1988-08-01 | 1990-02-09 | Furuno Electric Co Ltd | Dc power equipment |
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