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/66/1384071214126602.gif');}" onmousewheel="return imgzoom(this);">请教半桥空载发热(有图)!
如图这个半桥电路,在334电容后面的电路断开后,半桥P20NM60还是发热利害,按道理来说应该不怎么热,还有死区时间在的,推动是用IR2110,2110输出波形不错,但到了栅极就有点毛瘌,波形是3525发出的,频率是210K,请教各位高人指点指点!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/66/1384071214126602.gif');}" onmousewheel="return imgzoom(this);">
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/66/1384071214126602.gif');}" onmousewheel="return imgzoom(this);">