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想做一个10A300V的恒流源,用EWB做了一个电路不知道实际行不行的通,各位大师帮看看 好像短路的时候场效应管要承受10A的电流 AB两端的电压也有300V,那么早场效应管上的功耗是不是就是10*300=3KW如果是这样这个电路应该不行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/69/588921221231194.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20');}" onmousewheel="return imgzoom(this);">
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