JPS63691U - - Google Patents

Info

Publication number
JPS63691U
JPS63691U JP9481986U JP9481986U JPS63691U JP S63691 U JPS63691 U JP S63691U JP 9481986 U JP9481986 U JP 9481986U JP 9481986 U JP9481986 U JP 9481986U JP S63691 U JPS63691 U JP S63691U
Authority
JP
Japan
Prior art keywords
switching transistor
inductance
series
switching
emitter
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
JP9481986U
Other languages
Japanese (ja)
Other versions
JPH0545114Y2 (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 JP1986094819U priority Critical patent/JPH0545114Y2/ja
Publication of JPS63691U publication Critical patent/JPS63691U/ja
Application granted granted Critical
Publication of JPH0545114Y2 publication Critical patent/JPH0545114Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Dc-Dc Converters (AREA)

Description

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

第１図は本考案電源回路の一実施例を示す回路
図、第２図はその各部の電圧・電流波形を示す波
形図、第３図及び第４図はその一部の電圧・電流
波形の詳細を示す波形図、第５図は他の実施例を
示す回路図、第６図はその要部の電圧波形を示す
波形図、第７図及び第８図は従来回路の欠点を説
明するための電圧・電流波形図である。 Ｑ１……スイツチングトランジスタ、Ｔ……コ
ンバータトランス、Ｎ２……帰還巻線、Ｌ１……
インダクタンス、Ｃ１０……コンデンサ。 Figure 1 is a circuit diagram showing one embodiment of the power supply circuit of the present invention, Figure 2 is a waveform diagram showing the voltage and current waveforms of each part, and Figures 3 and 4 are part of the voltage and current waveforms. A waveform diagram showing the details, FIG. 5 is a circuit diagram showing another embodiment, FIG. 6 is a waveform diagram showing the voltage waveform of the main part, and FIGS. 7 and 8 are for explaining the drawbacks of the conventional circuit. FIG. 2 is a voltage/current waveform diagram of Q1...Switching transistor, T...Converter transformer, N2...Feedback winding, L1...
Inductance, C10...capacitor.

Claims (1)

【実用新案登録請求の範囲】 (1) 直流入力に対してトランスの入力巻線とス
イツチングトランジスタのコレクタ・エミツタ間
を直列に接続し、このスイツチングトランジスタ
のベース・エミツタ間に前記トランスの帰還巻線
を接続してブロツキング発振回路を構成すると共
に、前記帰還巻線からの正帰還電流をバイパスす
る制御素子を前記ベース・エミツタ間に接続し、
この制御素子によつて前記スイツチングトランジ
スタのターンオフタイミングを制御するようにし
た電源回路に於いて、前記スイツチングトランジ
スタのベース側と前記帰還巻線の一端との間に直
列にインダクタンスを接続したことを特徴とする
スイツチング制御型電源回路。 (2) 前記インダクタンスは該インダクタンスと
直列に接続されたコンデンサとによる直列共振周
波数が前記スイツチングトランジスタのスイツチ
ング周波数よりも低くなるインダクタンス値に選
定されていることを特徴とする登録請求の範囲第
１項記載のスイツチング制御型電源回路。[Claims for Utility Model Registration] (1) For direct current input, the input winding of a transformer and the collector-emitter of a switching transistor are connected in series, and the feedback of the transformer is connected between the base-emitter of the switching transistor. connecting the windings to form a blocking oscillation circuit, and connecting a control element between the base and emitter to bypass the positive feedback current from the feedback winding;
In the power supply circuit in which the turn-off timing of the switching transistor is controlled by the control element, an inductance is connected in series between the base side of the switching transistor and one end of the feedback winding. A switching control type power supply circuit featuring: (2) The first registered claim characterized in that the inductance is selected to have an inductance value such that the series resonance frequency of the inductance and the capacitor connected in series is lower than the switching frequency of the switching transistor. Switching control type power supply circuit described in .
JP1986094819U 1986-06-20 1986-06-20 Expired - Lifetime JPH0545114Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986094819U JPH0545114Y2 (en) 1986-06-20 1986-06-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986094819U JPH0545114Y2 (en) 1986-06-20 1986-06-20

Publications (2)

Publication Number Publication Date
JPS63691U true JPS63691U (en) 1988-01-06
JPH0545114Y2 JPH0545114Y2 (en) 1993-11-17

Family

ID=30958664

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986094819U Expired - Lifetime JPH0545114Y2 (en) 1986-06-20 1986-06-20

Country Status (1)

Country Link
JP (1) JPH0545114Y2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059793U (en) * 1983-09-29 1985-04-25 東芝ライテック株式会社 power supply
JPS60121962A (en) * 1983-11-30 1985-06-29 Toshiba Electric Equip Corp Switching circuit
JPS60219925A (en) * 1984-04-13 1985-11-02 松下電工株式会社 Charging circuit
JPS6139860A (en) * 1984-07-27 1986-02-26 Toshiba Electric Equip Corp One-transistor inverter
JPS61104789U (en) * 1984-12-12 1986-07-03

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059793B2 (en) * 1979-01-26 1985-12-26 三菱電機株式会社 Video recording and playback device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059793U (en) * 1983-09-29 1985-04-25 東芝ライテック株式会社 power supply
JPS60121962A (en) * 1983-11-30 1985-06-29 Toshiba Electric Equip Corp Switching circuit
JPS60219925A (en) * 1984-04-13 1985-11-02 松下電工株式会社 Charging circuit
JPS6139860A (en) * 1984-07-27 1986-02-26 Toshiba Electric Equip Corp One-transistor inverter
JPS61104789U (en) * 1984-12-12 1986-07-03

Also Published As

Publication number Publication date
JPH0545114Y2 (en) 1993-11-17

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