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/65/45261211939548.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20');}" onmousewheel="return imgzoom(this);">求助有源箝位单端正激主开关管不能软开通
这次用的驱动是IR2110,输入AC/110V,输出12V/5A,原边电感量4.2mH,漏感6uH,箝位电容0.22uF,电路是最简单的N沟道箝位,本来前后死区在2110输入都处理好了是160nS,但经过2110后箝位管变化不大,主管则有比较大的变化,死区似乎没有了,电压电流存在一个短暂的时间导致主管功耗巨大,再增大上升沿死区也没效果,把频率降到100K也是一样,由于对2110不甚熟悉,大伙有没有看法?
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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/65/45261211939548.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20');}" onmousewheel="return imgzoom(this);">