JPS61117594U - - Google Patents

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Publication number
JPS61117594U
JPS61117594U JP20080384U JP20080384U JPS61117594U JP S61117594 U JPS61117594 U JP S61117594U JP 20080384 U JP20080384 U JP 20080384U JP 20080384 U JP20080384 U JP 20080384U JP S61117594 U JPS61117594 U JP S61117594U
Authority
JP
Japan
Prior art keywords
transistor
input
base
feedback
transformer
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
Application number
JP20080384U
Other languages
Japanese (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 JP20080384U priority Critical patent/JPS61117594U/ja
Publication of JPS61117594U publication Critical patent/JPS61117594U/ja
Pending legal-status Critical Current

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  • Dc-Dc Converters (AREA)

Description

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

第1図は本考案のスイツチング制御型電源回路
の一実施例を示す回路図、第2図は従来のスイツ
チング制御型電源回路を示す回路図、第3図は第
1図及び第2図の各部の動作波形を示す波形図で
ある。 1……入力整流部、2……ブロツキング発振部
、3……コンバータトランス、4……誤差検出部
、5……制御回路部、6……出力整流器、TR4
……スイツチングトランジスタ、CK′……正帰
還電流制御回路。
Fig. 1 is a circuit diagram showing an embodiment of the switching control type power supply circuit of the present invention, Fig. 2 is a circuit diagram showing a conventional switching control type power supply circuit, and Fig. 3 shows each part of Figs. 1 and 2. FIG. DESCRIPTION OF SYMBOLS 1...Input rectification section, 2...Blocking oscillation section, 3...Converter transformer, 4...Error detection section, 5...Control circuit section, 6...Output rectifier, TR4
...Switching transistor, CK'...Positive feedback current control circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 直流入力に対してコンバータトランスの入力巻
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、前記トランスの帰還巻線
から前記トランジスタのベースに正帰還させてブ
ロツキング発振を行なわせると共に、前記トラン
スから得る直流電圧の変動に応じて前記トランジ
スタのスイツチングタイミングを制御するように
した電源回路に於いて、前記帰還巻線と前記トラ
ンジスタのベースとの間に直流入力電圧に応じて
動作する正帰還電流制御回路を設け、この制御回
路により前記ベースに供給される正帰還電流を前
記入力電圧の低いときに増大させ、高いときに減
少させるようにしたスイツチング制御型電源回路
The input winding of the converter transformer and the collector-emitter of the switching transistor are connected in series with respect to the DC input, and positive feedback is made from the feedback winding of the transformer to the base of the transistor to cause blocking oscillation. In a power supply circuit that controls the switching timing of the transistor according to fluctuations in the DC voltage obtained from a transformer, a positive voltage switch that operates according to the DC input voltage is connected between the feedback winding and the base of the transistor. A switching control type power supply circuit comprising a feedback current control circuit, the control circuit increasing the positive feedback current supplied to the base when the input voltage is low and decreasing it when the input voltage is high.
JP20080384U 1984-12-28 1984-12-28 Pending JPS61117594U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20080384U JPS61117594U (en) 1984-12-28 1984-12-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20080384U JPS61117594U (en) 1984-12-28 1984-12-28

Publications (1)

Publication Number Publication Date
JPS61117594U true JPS61117594U (en) 1986-07-24

Family

ID=30761990

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20080384U Pending JPS61117594U (en) 1984-12-28 1984-12-28

Country Status (1)

Country Link
JP (1) JPS61117594U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5918866U (en) * 1982-07-29 1984-02-04 ダイワ精工株式会社 Clutch return device for double bearing type fishing reel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5918866U (en) * 1982-07-29 1984-02-04 ダイワ精工株式会社 Clutch return device for double bearing type fishing reel

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