JPH0410587U - - Google Patents

Info

Publication number
JPH0410587U
JPH0410587U JP4958390U JP4958390U JPH0410587U JP H0410587 U JPH0410587 U JP H0410587U JP 4958390 U JP4958390 U JP 4958390U JP 4958390 U JP4958390 U JP 4958390U JP H0410587 U JPH0410587 U JP H0410587U
Authority
JP
Japan
Prior art keywords
input
smoothing circuit
side rectifying
circuit
rectifying
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
JP4958390U
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 JP4958390U priority Critical patent/JPH0410587U/ja
Publication of JPH0410587U publication Critical patent/JPH0410587U/ja
Pending legal-status Critical Current

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  • Rectifiers (AREA)
  • Dc-Dc Converters (AREA)

Description

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

第1図および第2図は本考案の実施例に係り、
第1図は同実施例のスイツチング電源の回路図、
第2図はそのスイツチング電源の出力電圧と出力
電流それぞれの立ち上がり特性を示す図である。
第3図およびおよび第4図は従来例に係り、第3
図は、同従来例のスイツチング電源の回路図、第
4図はそのスイツチング電源の出力電圧と出力電
流それぞれの立ち上がり特性を示す図である。 4……入力側整流平滑回路、6……コンバータ
トランス、8……出力側整流平滑回路、14……
負荷、16……制御回路、20……スイツチング
素子、24a,24b……ソフトスタート用コン
デンサ、26……外部切換スイツチ。
1 and 2 relate to an embodiment of the present invention,
Figure 1 is a circuit diagram of the switching power supply of the same example.
FIG. 2 is a diagram showing the rise characteristics of the output voltage and output current of the switching power supply.
Figures 3 and 4 relate to conventional examples;
This figure is a circuit diagram of the conventional switching power supply, and FIG. 4 is a diagram showing the rising characteristics of the output voltage and output current of the switching power supply. 4...Input side rectification and smoothing circuit, 6...Converter transformer, 8...Output side rectification and smoothing circuit, 14...
Load, 16...Control circuit, 20...Switching element, 24a, 24b...Soft start capacitor, 26...External changeover switch.

Claims (1)

【実用新案登録請求の範囲】 入力側整流平滑回路4、コンバータトランス6
、スイツチング素子20、出力側整流平滑回路8
、制御回路16およびソフトスタート用コンデン
サ24を有し、 入力側整流平滑回路4は、交流入力を整流平滑
するために設けられており、 コンバータトランス6は、一次側巻線6aに入
力側整流平滑回路4で整流平滑されてなる直流入
力が与えられるものであり、 スイツチング素子20は、入力側整流平滑回路
4と一次順巻線6aとの間に直列に接続されてお
り、かつ、制御信号の入力に応答してスイツチン
グ動作するものであり、 出力側整流平滑回路8は、コンバータトランス
6の二次側巻線6bにおける誘起電圧を整流平滑
するものであり、 制御回路16は、電源起動時においてソフトス
タート用コンデンサ24の充電速度に応じて出力
電圧を立ち上がらせていく制御信号をスイツチン
グ素子20に出力するものであり、 ソフトスタート用コンデンサ24は、電源の起
動とともに、その容量に応じた速度で充電されも
のであつて、かつ、負荷に対応した容量の選択が
可能に構成されている ことを特徴とするスイツチング電源。
[Claims for utility model registration] Input side rectifying and smoothing circuit 4, converter transformer 6
, switching element 20, output side rectifying and smoothing circuit 8
, a control circuit 16, and a soft start capacitor 24, the input side rectifying and smoothing circuit 4 is provided for rectifying and smoothing the AC input, and the converter transformer 6 has an input side rectifying and smoothing circuit on the primary side winding 6a. The switching element 20 is connected in series between the input-side rectifying and smoothing circuit 4 and the primary sequential winding 6a, and is configured to receive a DC input that has been rectified and smoothed by the circuit 4. The output side rectifying and smoothing circuit 8 rectifies and smoothes the induced voltage in the secondary winding 6b of the converter transformer 6, and the control circuit 16 performs a switching operation in response to an input. It outputs a control signal to the switching element 20 to raise the output voltage according to the charging speed of the soft start capacitor 24, and the soft start capacitor 24 starts up at a speed according to its capacity when the power supply is started. A switching power supply characterized by being rechargeable and configured to allow selection of a capacity corresponding to the load.
JP4958390U 1990-05-10 1990-05-10 Pending JPH0410587U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4958390U JPH0410587U (en) 1990-05-10 1990-05-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4958390U JPH0410587U (en) 1990-05-10 1990-05-10

Publications (1)

Publication Number Publication Date
JPH0410587U true JPH0410587U (en) 1992-01-29

Family

ID=31567399

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4958390U Pending JPH0410587U (en) 1990-05-10 1990-05-10

Country Status (1)

Country Link
JP (1) JPH0410587U (en)

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