充電器是為工具提供電量來源的一種電源，在我們日常生活中是必不可少的工具，像刮胡刀、手機、電腦等等都需要充電器，但是充電器一般都有很多參數，AC和DC就是其中的兩種，那么充電器上寫的AC和DC分別是什么意思呢？

1、AC是什么意(yi)思？

　   AC代表的是(shi)“交(jiao)流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)”，交(jiao)流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)也稱(cheng)“交(jiao)變(bian)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)”，簡稱(cheng)“交(jiao)流(liu)(liu)(liu)(liu)”。強(qiang)度與方(fang)向(xiang)都隨時間做周期性變(bian)化的電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)叫做交(jiao)變(bian)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)，簡稱(cheng)交(jiao)流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)。電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)方(fang)向(xiang)隨時間作周期性變(bian)化的為交(jiao)流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)。中國通常使用(yong)的交(jiao)流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)，一般頻(pin)率是(shi)50Hz。我們常見的電(dian)(dian)(dian)(dian)(dian)燈、電(dian)(dian)(dian)(dian)(dian)動機(ji)等用(yong)的電(dian)(dian)(dian)(dian)(dian)都是(shi)交(jiao)流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)。在(zai)實用(yong)中，交(jiao)流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)用(yong)符號“~”表示(shi)。

2、DC是什么意(yi)思？

　   DC代表(biao)的是(shi)“直流(liu)(liu)電(dian)(dian)(dian)(dian)”，又稱“恒流(liu)(liu)電(dian)(dian)(dian)(dian)”，恒定電(dian)(dian)(dian)(dian)流(liu)(liu)是(shi)直流(liu)(liu)電(dian)(dian)(dian)(dian)的一(yi)種，是(shi)大小(xiao)和方向(xiang)都不(bu)變(bian)的直流(liu)(liu)電(dian)(dian)(dian)(dian)。恒定電(dian)(dian)(dian)(dian)流(liu)(liu)是(shi)指大小(xiao)（電(dian)(dian)(dian)(dian)壓高低）和方向(xiang)（正負極(ji)）都不(bu)隨(sui)時(shi)間(jian)（相對范圍內）而變(bian)化，比如干(gan)電(dian)(dian)(dian)(dian)池。直流(liu)(liu)電(dian)(dian)(dian)(dian)是(shi)電(dian)(dian)(dian)(dian)荷的單(dan)向(xiang)流(liu)(liu)動(dong)或(huo)者移動(dong)，通常是(shi)電(dian)(dian)(dian)(dian)子。電(dian)(dian)(dian)(dian)流(liu)(liu)密度(du)隨(sui)著(zhu)時(shi)間(jian)而變(bian)化，但是(shi)通常移動(dong)的方向(xiang)在(zai)所有時(shi)間(jian)里(li)都是(shi)一(yi)樣的。作為一(yi)個形容詞，DC可用于參(can)考電(dian)(dian)(dian)(dian)壓（它的極(ji)性永遠(yuan)不(bu)會改變(bian)）。

　   充電器上寫的AC和DC分別是什么意思？就分享到這里。實際上AC和DC的意思是很好理解的，就是代表了交流電和直流電。在使用充電器的時候除了要了解這些字母代表的意思之外，如何正確使用充(chong)電(dian)器也是非常的重要的，因為如果使用方法不當的話，就很有可能會損壞充電器，甚至引發安全事故，我們一定不能忽視。