JPH0480286U - - Google Patents

Info

Publication number
JPH0480286U
JPH0480286U JP12295290U JP12295290U JPH0480286U JP H0480286 U JPH0480286 U JP H0480286U JP 12295290 U JP12295290 U JP 12295290U JP 12295290 U JP12295290 U JP 12295290U JP H0480286 U JPH0480286 U JP H0480286U
Authority
JP
Japan
Prior art keywords
switching transistor
circuit
transformer
detection resistor
overcurrent detection
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.)
Granted
Application number
JP12295290U
Other languages
English (en)
Other versions
JPH0727835Y2 (ja
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1990122952U priority Critical patent/JPH0727835Y2/ja
Publication of JPH0480286U publication Critical patent/JPH0480286U/ja
Application granted granted Critical
Publication of JPH0727835Y2 publication Critical patent/JPH0727835Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図は本考案のスイツチング電源回路の実施
例を示す回路図、第2図と第3図はコンデンサを
経た過電流検出用抵抗の検出電圧の波形図、第4
図は従来のスイツチング電源回路の回路図、第5
図と第6図は電流検出用抵抗の検出電圧の波形図
、第7図は従来の過電流保護動作の特性図である
。 T……トランス、L……1次巻線、L……
2じ巻線、R……過電流検出用抵抗、C……コ
ンデンサ。

Claims (1)

    【実用新案登録請求の範囲】
  1. トランスの1次巻線、スイツチングトランジス
    タ、過電流検出用抵抗からなる直列回路に直流入
    力を加え、該スイツチングトランジスタを「オン
    」「オフ」させてトランスの2次巻線に接続する
    整流平滑回路を経て直流出力を得るスイツチング
    電源回路において、過電流検出用抵抗の検出電圧
    がコンデンサを介してスイツチングトランジスタ
    の制御回路に加えられることを特徴とするスイツ
    チング電源回路。
JP1990122952U 1990-11-22 1990-11-22 スイッチング電源回路 Expired - Lifetime JPH0727835Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990122952U JPH0727835Y2 (ja) 1990-11-22 1990-11-22 スイッチング電源回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990122952U JPH0727835Y2 (ja) 1990-11-22 1990-11-22 スイッチング電源回路

Publications (2)

Publication Number Publication Date
JPH0480286U true JPH0480286U (ja) 1992-07-13
JPH0727835Y2 JPH0727835Y2 (ja) 1995-06-21

Family

ID=31870685

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990122952U Expired - Lifetime JPH0727835Y2 (ja) 1990-11-22 1990-11-22 スイッチング電源回路

Country Status (1)

Country Link
JP (1) JPH0727835Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07123711A (ja) * 1993-10-19 1995-05-12 Hamamatsu Photonics Kk スイッチング電源の過負荷・短絡保護回路

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6387173A (ja) * 1986-09-29 1988-04-18 Canon Inc 電源装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6387173A (ja) * 1986-09-29 1988-04-18 Canon Inc 電源装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07123711A (ja) * 1993-10-19 1995-05-12 Hamamatsu Photonics Kk スイッチング電源の過負荷・短絡保護回路

Also Published As

Publication number Publication date
JPH0727835Y2 (ja) 1995-06-21

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Legal Events

Date Code Title Description
R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term