JPH01162782U - - Google Patents
Info
- Publication number
- JPH01162782U JPH01162782U JP5896088U JP5896088U JPH01162782U JP H01162782 U JPH01162782 U JP H01162782U JP 5896088 U JP5896088 U JP 5896088U JP 5896088 U JP5896088 U JP 5896088U JP H01162782 U JPH01162782 U JP H01162782U
- Authority
- JP
- Japan
- Prior art keywords
- short
- power supply
- switching element
- starting resistor
- switching
- 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
- 238000004804 winding Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
Description
第１図ａ，ｂは本考案の原理説明図、第２図は
実施例の構成説明図、第３図ａ，ｂは従来例の説
明図であり、図中１はヒユーズ、２，９，１１は
整流回路、３，１０，１３はコンデンサ、４は起
動抵抗、５はサイリスタ、６，８はトランス、６
１は１次巻線、６２は２次巻線、６３は３次巻線
、１４は駆動回路、１５は制御回路、２１は停電
検出回路、２２はタイミング回路、２３はＡＮＤ
ゲートを示す。
1A and 1B are explanatory diagrams of the principle of the present invention, FIG. 2 is an explanatory diagram of the configuration of an embodiment, and FIGS. 3A and 3B are explanatory diagrams of a conventional example, in which 1 is a fuse, 2, 9, 11 is a rectifier circuit, 3, 10, 13 are capacitors, 4 is a starting resistor, 5 is a thyristor, 6, 8 is a transformer, 6
1 is a primary winding, 6 2 is a secondary winding, 6 3 is a tertiary winding, 14 is a drive circuit, 15 is a control circuit, 21 is a power failure detection circuit, 22 is a timing circuit, 23 is an AND
Showing the gate.
Claims (1)
ンスの１次巻線に接続し、該１次巻線を前記電源
より分岐駆動されたスイツチング素子により接断
し、２次巻線より所望の整流平滑電圧出力を得、
該電圧の確立により前記起動抵抗を短絡するスイ
ツチング電源ユニツトにおいて、 前記電源の停電を検出し所定の遅延タイミング
で前記スイツチング素子を停止させる手段を具え
、 短時間停電時に、前記起動抵抗短絡のまま起動
された場合に発生する大電流を防止するようにし
たことを特徴とするスイツチング電源ユニツト。[Claims for Utility Model Registration] A rectified and smoothed power supply is connected to the primary winding of a transformer via a short-circuitable starting resistor, and the primary winding is connected and disconnected by a switching element branch-driven from the power supply, Obtain the desired rectified and smoothed voltage output from the next winding,
A switching power supply unit that short-circuits the starting resistor upon establishment of the voltage, comprising means for detecting a power outage of the power source and stopping the switching element at a predetermined delay timing, and in the event of a short power outage, the switching element is started with the starting resistor short-circuited. A switching power supply unit characterized in that it is designed to prevent large currents generated when
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5896088U JPH01162782U (en) | 1988-04-30 | 1988-04-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5896088U JPH01162782U (en) | 1988-04-30 | 1988-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01162782U true JPH01162782U (en) | 1989-11-13 |
Family
ID=31284752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5896088U Pending JPH01162782U (en) | 1988-04-30 | 1988-04-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01162782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016027778A (en) * | 2014-07-02 | 2016-02-18 | 株式会社タムラ製作所 | Switching power supply device |
-
1988
- 1988-04-30 JP JP5896088U patent/JPH01162782U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016027778A (en) * | 2014-07-02 | 2016-02-18 | 株式会社タムラ製作所 | Switching power supply device |
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