用玻纤万用板+IR2153+IRF3205+环形磁芯变压器(30.5x18.5x13mm 初级6T+6T次级80T)做了个12V逆变器,其他器件:R1 10Ω R2 20K C1 220uf/63V c3 47uf/63V c2 102
问题:通电加负载后1A时三极管IRF3205不热,4A时IRF3205温度80多度!!!!
请问:怎样降温度?????
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/71/45731227620385.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20');}" onmousewheel="return imgzoom(this);">