请教汽车功放电源

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/42/1151664794.gif');}" onmousewheel="return imgzoom(this);">

请问各位高手?此图能不能做成输出正负电源的电路?
望指教!!!~~~