• 回复
  • 收藏
  • 点赞
  • 分享
  • 发新帖

做电焊机电源如下,希望得到大家帮助

电路输入电压:380AC
电路输出直流电压、电流分别为:300A/400V
电流电压波动10%以内
负载:电焊机
逆变输出频率要求:10~20K
变压器变比?
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/44/1154938390.gif');}" onmousewheel="return imgzoom(this);">
全部回复(1)
正序查看
倒序查看
szgelei
LV.4
2
2006-08-28 22:33
专业生产销售安规及金属薄膜电容器
QQ:391889495/13266647475
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/44/1156775555.jpg');}" 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/44/1156775578.jpg');}" 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/44/1156775592.jpg');}" 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/44/1156775610.jpg');}" onmousewheel="return imgzoom(this);">
0
回复