陕西秦(qin)都天博tb有限(xian)公(gong)司(si)小编帮您详细讲解一下高频变压器和低(di)频变压器具体区别
根据工作频率(lv)不同,分为低频变(bian)压(ya)器和高频变(bian)压(ya)器。
我(wo)们日常(chang)生(sheng)(sheng)活生(sheng)(sheng)产用电的(de)频(pin)率是50赫兹(zi),我(wo)们把这种(zhong)(zhong)交(jiao)流电叫(jiao)低(di)(di)频(pin)交(jiao)流电。如果变(bian)压(ya)器(qi)(qi)工作在这种(zhong)(zhong)频(pin)率下,我(wo)们把这种(zhong)(zhong)变(bian)压(ya)器(qi)(qi)成为低(di)(di)频(pin)变(bian)压(ya)器(qi)(qi),也(ye)叫(jiao)工频(pin)变(bian)压(ya)器(qi)(qi)。这种(zhong)(zhong)变(bian)压(ya)器(qi)(qi)体积大,效率低(di)(di),铁芯是用相互(hu)绝缘的(de)硅钢片堆叠而成,初(chu)次级线(xian)圈(quan)用漆包(bao)线(xian)缠绕而成,初(chu)次级电压(ya)与它们的(de)匝数成正比。
除此之外(wai),有些(xie)变(bian)压器工作在几(ji)(ji)十设置几(ji)(ji)百千赫兹,这种(zhong)变(bian)压器成为(wei)高频变(bian)压器。高频变(bian)压一(yi)般不用铁芯,而是用磁芯。高频变(bian)压器体积小巧(qiao),初次级线(xian)圈匝数少(shao),效(xiao)率高。
高、低频变压器区别(bie)与联(lian)系:
高频变(bian)压(ya)(ya)器(qi)(qi)工作(zuo)频率(lv)一(yi)般在(zai)几十千(qian)赫(he)兹(zi)到几百(bai)千(qian)赫(he)兹(zi),变(bian)压(ya)(ya)器(qi)(qi)使用的是磁芯,磁芯的主(zhu)要成(cheng)分是锰锌(xin)铁氧体,这种材(cai)料在(zai)高频中涡流(liu)(liu)小,损(sun)耗(hao)低,效率(lv)高。低频变(bian)压(ya)(ya)器(qi)(qi)工作(zuo)频率(lv)国内为(wei)50赫(he)兹(zi),变(bian)压(ya)(ya)器(qi)(qi)铁芯是金属软磁性材(cai)料,薄片(pian)状(zhuang)的硅钢片(pian)能(neng)大(da)大(da)降(jiang)低涡流(liu)(liu)损(sun)耗(hao),但比高频变(bian)压(ya)(ya)器(qi)(qi)的磁芯损(sun)耗(hao)还是要大(da)。
同样(yang)输(shu)(shu)出功率的变(bian)(bian)压器(qi),高频变(bian)(bian)压器(qi)比低(di)频变(bian)(bian)压器(qi)体积小得多,发热(re)量低(di)。因此目(mu)前很多消费电(dian)子(zi)产(chan)(chan)品(pin)和(he)网络产(chan)(chan)品(pin)电(dian)源(yuan)(yuan)适(shi)配器(qi),都(dou)是(shi)(shi)开(kai)关电(dian)源(yuan)(yuan),内部的高频变(bian)(bian)压器(qi)是(shi)(shi)开(kai)关电(dian)源(yuan)(yuan).主要的组成(cheng)部分(fen)。基本原理是(shi)(shi)把(ba)输(shu)(shu)入的交流(liu)(liu)电(dian)先变(bian)(bian)成(cheng)直(zhi)流(liu)(liu)然后通过(guo)三极(ji)管(guan)或场(chang)效应管(guan)等变(bian)(bian)成(cheng)高频通过(guo)高频变(bian)(bian)压器(qi)变(bian)(bian)压,之后再次整流(liu)(liu)输(shu)(shu)出,加上其他控制部分(fen),稳定输(shu)(shu)出直(zhi)流(liu)(liu)电(dian)压。
总之,高、低频(pin)变(bian)压器(qi)相同之处都是(shi)利(li)用电磁感应原理,不同之处在低频(pin)变(bian)压器(qi)是(shi)硅钢片(pian)叠成的金(jin)属芯(xin),高频(pin)变(bian)压器(qi)是(shi)锰锌铁氧体等材(cai)料对接成的整块。
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