其实我做的也并非完全是开关电源,而是DC-AC升压电路,频率500K,功率200W.
下图1~图2为老外的两种同类型产品电路,好像也看不到典型的磁复位电路啊.
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500) {this.resized=true; this.width=500; this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/59/1728431194941847.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20');}" onmousewheel="return imgzoom(this);">
我恳请各朋友指点迷津:
1、如果输出部分不需要整流直接输出(如图),是否不需要特别的磁复位电路?
2、这种电路mosfet功率管是否需要2倍以上网电耐压?
3、第三个图是我按目前理解设计的原理图,是否存在问题?
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