重新饶了两种变压器:
第一种是Np=122Ts,Ns=8Ts,Na=24Ts,Lp=2.5mH
通电测试空载85V输入Vcc=8.518V,265V输入Vcc=4.820V
带0.2A负载,85V输入时Vcc=8.898V,开关波形如下
![](http://u.dianyuan.com/bbs/u/56/89481188028028.jpg?x-oss-process=image/format,webp)
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/56/89481188028028.jpg');}" onmousewheel="return imgzoom(this);">
265V输入时,Vcc=10.430V,开关波形如下:
![](http://u.dianyuan.com/bbs/u/56/89481188028067.jpg?x-oss-process=image/format,webp)
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/56/89481188028067.jpg');}" onmousewheel="return imgzoom(this);">
第二种变压器,Np=122Ts,Ns=7Ts,Na=21Ts,Lp=2.5mH
通电测试空载85V输入Vcc=6.401V,265V输入Vcc=4.821V
带0.2A负载,85V输入时Vcc=9.055V,开关波形如下
![](http://u.dianyuan.com/bbs/u/56/89481188028153.jpg?x-oss-process=image/format,webp)
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/56/89481188028153.jpg');}" onmousewheel="return imgzoom(this);">
265V输入时Vcc=10.252V,开关波形如下:
![](http://u.dianyuan.com/bbs/u/56/89481188028252.jpg?x-oss-process=image/format,webp)
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/56/89481188028252.jpg');}" onmousewheel="return imgzoom(this);">
请问一下,结合波形和Vcc电压,哪个变压器要理想一点?