上帝啊TL494高手幫幫忙吧
給個(gè)電路吧TL494的方波輸出頻率在20K-35K都可.關(guān)鍵是占空比要可調(diào)0-50%或者越大越好.小弟在此先謝過(guò)了
全部回復(fù)(9)
正序查看
倒序查看
應(yīng)該不難,還是你的要求沒(méi)說(shuō)完 880961238923598.doc
0
回復(fù)
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) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/76/1377131239045081.jpg');}" onmousewheel="return imgzoom(this);">
改13腳接地 輸出0~96%
0
回復(fù)
@jinnan5282
[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/76/1377131239045081.jpg');}"onmousewheel="returnimgzoom(this);">改13腳接地輸出0~96%
吶..轉(zhuǎn)人家的
0
回復(fù)
@280412115
吶..轉(zhuǎn)人家的
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) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/76/3208171239083669.jpg');}" onmousewheel="return imgzoom(this);">
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) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/76/3208171239083686.jpg');}" onmousewheel="return imgzoom(this);"> 0
回復(fù)
@280412115
[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/76/3208171239083669.jpg');}"onmousewheel="returnimgzoom(this);">[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/76/3208171239083686.jpg');}"onmousewheel="returnimgzoom(this);">
哦!!你要方波的!!看錯(cuò)了!不好意思
0
回復(fù)
