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/55/788021184750558.bmp');}" onmousewheel="return imgzoom(this);">请教全桥变换器变压器的绕制问题,如图
我计算得全桥变换器变压器的原副边匝数分别为9匝,5匝,但副边如何绕制却拿不准,如图所示,由于变压器存在中心抽头,那副边5匝是指ab的匝数还是ac的匝数?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/55/788021184750558.bmp');}" 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/55/788021184750558.bmp');}" onmousewheel="return imgzoom(this);">