JPS5818324U

JPS5818324U - power supply

Info

Publication number: JPS5818324U
Application number: JP11012781U
Authority: JP
Inventors: 伸悟神谷
Original assignee: ヤマハ株式会社
Priority date: 1981-07-24
Filing date: 1981-07-24
Publication date: 1983-02-04

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図および第２図は従来におけるスイッチング方式の
電源装置の一例を示す回路図、第３図はこの考案の原理
を説明するためのトランスの平面断面図、第４図はトラ
ンスの駆動時にその浮遊容゛量によって形成される回路
を示す図、第５図は第４図を簡略化した回路図、第６図
は導通位相角制御方式の電源装置にこの考案を適用した
一例を示す回路図、第７図はスイッチングレギュレータ
方式の電源装置にこの考案を適用した一例を示す回路図
である。２・・・電源トランス、２ａ・・・−次巻線、２ｂ・・
・二次巻線、２Ｃ・・・コア、２０・・・交流電源、２
１・・・スイッチング用トライアック、２２．２３・・
・シールド板、３１・・・スイッチング回路、３２．４
１・・・整流平滑回路、３３・・・増幅部、３４・・・
カートリッジ、３６・・・誤差アンプ。　　　−Figures 1 and 2 are circuit diagrams showing an example of a conventional switching power supply device, Figure 3 is a cross-sectional plan view of a transformer to explain the principle of this invention, and Figure 4 is a diagram showing how the transformer operates when the transformer is driven. Figure 5 is a simplified circuit diagram of Figure 4, and Figure 6 is a circuit diagram showing an example of applying this invention to a conduction phase angle control type power supply device. , FIG. 7 is a circuit diagram showing an example in which this invention is applied to a switching regulator type power supply device. 2...Power transformer, 2a...-next winding, 2b...
・Secondary winding, 2C... Core, 20... AC power supply, 2
1... Triac for switching, 22.23...
・Shield plate, 31...Switching circuit, 32.4
1... Rectifying and smoothing circuit, 33... Amplifying section, 34...
Cartridge, 36...error amplifier. −

Claims

[Scope of utility model registration request]

In a power supply device that switches the primary side of a power transformer, a shield plate is provided between the primary winding and the core of the power transformer and between the primary winding and the secondary winding, and for the former, a shield plate is provided at the primary side power supply end. and the latter is connected to a secondary side grounding end, and switching noise is canceled by the two shield plates.