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/80/3502931251722152.png?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20');}" onmousewheel="return imgzoom(this);">10W5路隔离5V开关电源 负载调整率差 怎么办?
电路图如下,共5路5V隔离输出,右上角为主输出,供给单片机、液晶模块、GPRS模块;左下角4路给485模块,所以主输出功耗远大于次输出.电路空载可输出5路5V,主路不带GPRS模块时输出电流30mA,其余4路电压基本正常;主路带GPRS模块时输出200mA,其余4路输出电压高达12V,且电容、变压器很热,菜鸟请各位大侠指教,该怎么调整参数.
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