JPH0443391U - - Google Patents

Info

Publication number
JPH0443391U
JPH0443391U JP8575890U JP8575890U JPH0443391U JP H0443391 U JPH0443391 U JP H0443391U JP 8575890 U JP8575890 U JP 8575890U JP 8575890 U JP8575890 U JP 8575890U JP H0443391 U JPH0443391 U JP H0443391U
Authority
JP
Japan
Prior art keywords
voltage
capacitor
alternating current
switching
operation start
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
JP8575890U
Other languages
Japanese (ja)
Other versions
JPH087830Y2 (en
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 JP1990085758U priority Critical patent/JPH087830Y2/en
Publication of JPH0443391U publication Critical patent/JPH0443391U/ja
Application granted granted Critical
Publication of JPH087830Y2 publication Critical patent/JPH087830Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Landscapes

  • Rectifiers (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Dc-Dc Converters (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案を説明する構成ブロツク図、第
２図は本考案の一実施例を示す構成ブロツク図、
第３図は第２図の回路の動作を説明する波形図で
ある。第４図及び第５図はアクテイブ平滑フイル
タの説明図、第６図は従来のアクテイブ平滑フイ
ルタを有するスイツチング電源の構成ブロツク図
である。 １０……昇圧コンバータ部、２０……スイツチ
ング制御部、３０……充電部、５０……ＲＣＣ電
源部。 FIG. 1 is a configuration block diagram explaining the present invention, FIG. 2 is a configuration block diagram showing an embodiment of the present invention,
FIG. 3 is a waveform diagram illustrating the operation of the circuit of FIG. 2. 4 and 5 are explanatory diagrams of an active smoothing filter, and FIG. 6 is a structural block diagram of a switching power supply having a conventional active smoothing filter. 10... Boost converter section, 20... Switching control section, 30... Charging section, 50... RCC power supply section.

Claims (1)

【実用新案登録請求の範囲】 整流された交流電流をインダクタンスＬ１を介
して入力し、スイツチング素子Ｑ１によつてオン
オフし、ダイオードＤ１を介してコンデンサＣ１
に蓄電して、入力電圧よりも高い電圧を出力する
昇圧コンバータ部１０、 このスイツチング素子のオンオフを制御して昇
圧コンバータ部の出力電圧を安定化すると共に、
駆動用電圧が動作開始電圧に至ると動作を開始し
、この動作開始電圧よりも低い動作停止電圧に至
ると動作を停止するスイツチング制御部２０、 前記整流された交流電流が一端に印加される抵
抗Ｒ２と、この抵抗の他端と接続されるコンデン
サＣ２を有し、当該動作開始電圧を発生する充電
部３０、 を有するスイツチング電源において、 前記交流電流を整流平滑化した電流を入力し、
前記動作停止電圧よりも高い電圧の直流電流を発
生するリンギングチヨークコンバータ部５０を設
け、 前記充電部のコンデンサがこのリンギングチヨ
ークコンバータ部の出力により充電されると共に
、このコンデンサを前記スイツチング制御部の駆
動用電力として用いることを特徴とするスイツチ
ング電源の起動回路。[Claims for Utility Model Registration] A rectified alternating current is inputted through an inductance L1, turned on and off by a switching element Q1, and then passed through a diode D1 to a capacitor C1.
A step-up converter section 10 stores electricity and outputs a voltage higher than the input voltage, and controls the on/off of this switching element to stabilize the output voltage of the step-up converter section.
a switching control unit 20 that starts operating when the drive voltage reaches an operation start voltage and stops operating when it reaches an operation stop voltage lower than the operation start voltage; a resistor to which the rectified alternating current is applied; R2 and a charging unit 30 that has a capacitor C2 connected to the other end of this resistor and generates the operation start voltage, inputting a current obtained by rectifying and smoothing the alternating current,
A ringing chain converter unit 50 is provided that generates a DC current with a voltage higher than the operation stop voltage, and a capacitor of the charging unit is charged by the output of the ringing chain converter unit, and the capacitor is connected to the switching control unit. A starting circuit for a switching power supply, which is used as driving power for a switching power supply.
JP1990085758U 1990-08-14 1990-08-14 Switching power supply start-up circuit Expired - Lifetime JPH087830Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990085758U JPH087830Y2 (en) 1990-08-14 1990-08-14 Switching power supply start-up circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990085758U JPH087830Y2 (en) 1990-08-14 1990-08-14 Switching power supply start-up circuit

Publications (2)

Publication Number Publication Date
JPH0443391U true JPH0443391U (en) 1992-04-13
JPH087830Y2 JPH087830Y2 (en) 1996-03-04

Family

ID=31635053

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990085758U Expired - Lifetime JPH087830Y2 (en) 1990-08-14 1990-08-14 Switching power supply start-up circuit

Country Status (1)

Country Link
JP (1) JPH087830Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010110077A (en) * 2008-10-29 2010-05-13 Shindengen Electric Mfg Co Ltd Power supply apparatus and its controlling method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58148680A (en) * 1982-02-26 1983-09-03 Hitachi Ltd self-excited oscillation circuit
JPS6033744U (en) * 1983-08-15 1985-03-07 株式会社東芝 electron gun structure
JPS6181785U (en) * 1984-10-30 1986-05-30
JPS62201063A (en) * 1986-02-27 1987-09-04 Toshiba Electric Equip Corp Power source device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58148680A (en) * 1982-02-26 1983-09-03 Hitachi Ltd self-excited oscillation circuit
JPS6033744U (en) * 1983-08-15 1985-03-07 株式会社東芝 electron gun structure
JPS6181785U (en) * 1984-10-30 1986-05-30
JPS62201063A (en) * 1986-02-27 1987-09-04 Toshiba Electric Equip Corp Power source device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010110077A (en) * 2008-10-29 2010-05-13 Shindengen Electric Mfg Co Ltd Power supply apparatus and its controlling method

Also Published As

Publication number Publication date
JPH087830Y2 (en) 1996-03-04

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