JPH0196780U - - Google Patents
Info
- Publication number
- JPH0196780U JPH0196780U JP19325787U JP19325787U JPH0196780U JP H0196780 U JPH0196780 U JP H0196780U JP 19325787 U JP19325787 U JP 19325787U JP 19325787 U JP19325787 U JP 19325787U JP H0196780 U JPH0196780 U JP H0196780U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- current
- transformer
- switching
- inrush current
- 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
Links
Landscapes
- Dc-Dc Converters (AREA)
- Power Conversion In General (AREA)
Description
第１図は本考案の一実施例のスイツチング電源
装置を説明するための回路図、第２図は従来のス
イツチング電源装置を説明するための回路図、第
３図は従来の他のスイツチング電源を説明するた
めの回路図である。
２１……商用電源、２２……抵抗、２３……制
御回路、２４……ダイオード、２５……コンデン
サ、２６……遅延回路、２７……トランジスタ、
２８……トランス。
Fig. 1 is a circuit diagram for explaining a switching power supply according to an embodiment of the present invention, Fig. 2 is a circuit diagram for explaining a conventional switching power supply, and Fig. 3 is a circuit diagram for explaining another conventional switching power supply. FIG. 2 is a circuit diagram for explanation. 21... commercial power supply, 22... resistor, 23... control circuit, 24... diode, 25... capacitor, 26... delay circuit, 27... transistor,
28...Trance.
Claims (1)
電流抑制回路と、前記電源からの交流を直流に変
換する入力側整流平滑回路と、前記直流を断続す
るスイツチング回路と、一次側コイルおよび二次
側コイルを有するトランスと、前記二次側コイル
に発生した電流を直流に変換する出力側整流平滑
回路と、前記トランスに磁気的に結合されたコイ
ルに発生する電流により作動し前記突入電流抑制
回路を短絡する制御回路と、前記突入電流抑制回
路から電流が供給されているときに前記スイツチ
ング回路の起動を遅延させる遅延回路とを具備し
たことを特徴とするスイツチング電源装置。 An inrush current suppression circuit that suppresses the inrush current that occurs when the power is turned on, an input side rectifying and smoothing circuit that converts alternating current from the power source into direct current, a switching circuit that cuts in and out the direct current, a primary coil, and a secondary coil. a transformer having a transformer, an output rectifying and smoothing circuit that converts the current generated in the secondary coil into direct current, and a current generated in a coil magnetically coupled to the transformer to short-circuit the inrush current suppression circuit. 1. A switching power supply device comprising: a control circuit for controlling the switching circuit; and a delay circuit for delaying activation of the switching circuit when current is being supplied from the inrush current suppression circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19325787U JPH0196780U (en) | 1987-12-19 | 1987-12-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19325787U JPH0196780U (en) | 1987-12-19 | 1987-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0196780U true JPH0196780U (en) | 1989-06-27 |
Family
ID=31484063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19325787U Pending JPH0196780U (en) | 1987-12-19 | 1987-12-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0196780U (en) |
-
1987
- 1987-12-19 JP JP19325787U patent/JPH0196780U/ja active Pending