jason2008:
500W功放用開(kāi)關(guān)電源板,帶過(guò)流保護(hù),增加一個(gè)繼電器就可以做低功耗(小于1W,無(wú)需外加變壓器),空載+/-52V,負(fù)載+/-48V,5A,外加+/-15V;成本不到同等功率環(huán)牛的50%.[圖片]500){this.resized=true;this.width=500;this.alt='這是一張縮略圖,點(diǎn)擊可放大。\n按住CTRL,滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/77/2884281243645791.jpg');}"onmousewheel="returnimgzoom(this);">