JPH0279185U - - Google Patents

Description

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

第１図は本考案の一実施例による多出力直流安
定化電源装置の一実施例を示す基本構成回路図、
第２図は本考案と従来の副出力の特性図、第３図
、第４図は従来の多出力直流安定化電源の基本構
成回路図である。 ２０……スイツチングトランス、２１……主２
次巻線、２２……副２次巻線、２３……電流検出
素子、２４，２７……整流平滑回路、２６……主
出力端子、２９……副出力端子、２５，２８……
負荷、３０……電圧検出回路、３１……制御回路
、３２……１次巻線、３３……スイツチングトラ
ンジスタ、３６……直流電源部。 FIG. 1 is a basic configuration circuit diagram showing an embodiment of a multi-output DC stabilized power supply device according to an embodiment of the present invention;
FIG. 2 is a characteristic diagram of the sub-output of the present invention and a conventional one, and FIGS. 3 and 4 are basic configuration circuit diagrams of a conventional multi-output DC stabilized power supply. 20...Switching transformer, 21...Main 2
Next winding, 22... Sub secondary winding, 23... Current detection element, 24, 27... Rectifying and smoothing circuit, 26... Main output terminal, 29... Sub output terminal, 25, 28...
Load, 30... Voltage detection circuit, 31... Control circuit, 32... Primary winding, 33... Switching transistor, 36... DC power supply section.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電圧検出回路が接続される主出力を供給する整
流平滑回路へ接続された主２次巻線と、副出力を
供給する整流平滑回路へ接続された少なくとも１
つの副２次巻線を有するスイツチングトランスを
もち、上記副２次巻線の一端を上記主出力の整流
平滑回路の出力側に接続する重ね上げ回路を構成
するとともに、スイツチング周波数の交流電流に
対し適当な電圧降下を生じる電流検出素子を上記
主出力の整流平滑回路の入力側と上記主２次巻線
の一端との間に直列に接続した構成をもち、副出
力の出力電流変化による出力電圧変動を抑制する
構成とした多出力直流安定化電源装置。 A main secondary winding connected to a rectifier smoothing circuit supplying a main output to which the voltage detection circuit is connected, and at least one secondary winding connected to a rectifier smoothing circuit supplying a sub output.
It has a switching transformer having two sub-secondary windings, and constitutes a layered circuit that connects one end of the sub-secondary winding to the output side of the main output rectifying and smoothing circuit, and also connects one end of the sub-secondary winding to the output side of the rectifying and smoothing circuit of the main output. On the other hand, it has a configuration in which a current detection element that generates an appropriate voltage drop is connected in series between the input side of the rectifying and smoothing circuit of the main output and one end of the main secondary winding, and the output is determined by changes in the output current of the sub output. A multi-output DC stabilized power supply with a configuration that suppresses voltage fluctuations.