原帖由 <i>mscf2005</i> 于 2009-12-20 22:42 发表 <a href="http://bbs.hasea.com/redirect.php?goto=findpost&pid=6496641&ptid=419849" target="_blank"><img src="http://bbs.hasea.com/images/common/back.gif" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open(this.src);}" onmousewheel="return imgzoom(this);" alt="" /></a><br />
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既然你这么肯定,哪么你就去做个实验。<br />
自己试试看。<br />
如果您学过电工学请拿出课本。<br />
桥式整流后的电压约为输入电压的0.9倍。<br />
整流后经过滤波的输出电压为1.4倍输入电压(不考虑整流管压降)。<br />
如果输 ... <br />
整流滤波,如果要达到楼主所说的90%,实际只有不到1/3的时间电力线在传输能量。这样的5百多伏与直流600伏有可比性吗? |