收藏本站|联系毅廷音响|在线留言|网站地图欢迎来到东莞市毅廷音响科技有限公司官方网站!
全国咨询热线:188-2586-2767

毅廷音响

专业蓝牙音箱喇叭生产厂商

快三倍投计划,快三回血倍投计划 » 毅廷资讯中心 » 喇叭常见问题 » 音响喇叭的阻抗和功放阻抗是否有关系

音响喇叭的阻抗和功放阻抗是否有关系

文章出处:责任(ren)编辑:查看手机网址
扫一扫!音响喇叭的阻抗和功放阻抗是否有关系扫一扫!
人气:-发表时间:2020-11-10 09:37【

  音响喇(la)叭的(de)(de)阻抗(kang)(kang)是否(fou)和功(gong)放(fang)(fang)输出的(de)(de)阻抗(kang)(kang)匹配是很重(zhong)要的(de)(de)一环。喇(la)叭是功(gong)放(fang)(fang)的(de)(de)负(fu)载主体,喇(la)叭的(de)(de)额定(ding)阻抗(kang)(kang)应(ying)与功(gong)放(fang)(fang)的(de)(de)额定(ding)输出阻抗(kang)(kang)相(xiang)等或相(xiang)近(jin)。功(gong)放(fang)(fang)电路应(ying)当配接多少额定(ding)负(fu)载阻抗(kang)(kang)值(zhi),这是生产厂家设计功(gong)放(fang)(fang)的(de)(de)一项基本参数。

  当(dang)功(gong)(gong)(gong)(gong)放(fang)的(de)(de)额定(ding)(ding)(ding)输(shu)出(chu)阻(zu)抗与喇叭的(de)(de)额定(ding)(ding)(ding)阻(zu)抗相一致时,功(gong)(gong)(gong)(gong)放(fang)处(chu)于(yu)最佳设计负载线状(zhuang)态,因此(ci)可以给出(chu)最大不(bu)失真功(gong)(gong)(gong)(gong)率(lv)(lv)(lv),如果喇叭的(de)(de)额定(ding)(ding)(ding)阻(zu)抗大于(yu)功(gong)(gong)(gong)(gong)放(fang)的(de)(de)额定(ding)(ding)(ding)输(shu)出(chu)阻(zu)抗,功(gong)(gong)(gong)(gong)放(fang)的(de)(de)实(shi)际(ji)输(shu)出(chu)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)将会小(xiao)于(yu)额定(ding)(ding)(ding)输(shu)出(chu)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)。如果喇叭的(de)(de)额定(ding)(ding)(ding)阻(zu)抗小(xiao)于(yu)功(gong)(gong)(gong)(gong)放(fang)的(de)(de)额定(ding)(ding)(ding)输(shu)出(chu)阻(zu)抗,音响系(xi)统能(neng)工作,但功(gong)(gong)(gong)(gong)放(fang)有过载的(de)(de)危(wei)险,要求功(gong)(gong)(gong)(gong)放(fang)有完(wan)善的(de)(de)过流保护措施来(lai)解决(jue)。

  当(dang)功(gong)放(fang)接入过低阻抗(kang)的喇叭时,瞬态特性变(bian)坏,失真(zhen)程度将增加本应有(you)更大(da)的功(gong)率输(shu)(shu)出(chu),却造(zao)成功(gong)率值(zhi)上不(bu)(bu)去。当(dang)功(gong)放(fang)连接高于(yu)其(qi)(qi)额定负(fu)载(zai)阻抗(kang)的喇叭时,额定输(shu)(shu)出(chu)功(gong)率下(xia)降,对其(qi)(qi)它性能(neng)指标(biao)影响不(bu)(bu)大(da);但(dan)若(ruo)电(dian)源电(dian)压裕量不(bu)(bu)大(da)时,可(ke)能(neng)尚未达到额定功(gong)率时,已经发生过载(zai)失真(zhen)。要(yao)清楚,当(dang)阻抗(kang)不(bu)(bu)匹(pi)配时,可(ke)能(neng)引起功(gong)放(fang)的阻尼系数变(bian)动。功(gong)放(fang)的阻尼系数是功(gong)放(fang)负(fu)载(zai)阻值(zhi)(主要(yao)是喇叭阻抗(kang)值(zhi))与功(gong)放(fang)输(shu)(shu)出(chu)内阻之比(bi)。当(dang)喇叭阻抗(kang)值(zhi)变(bian)动时,可(ke)引起功(gong)放(fang)的阻尼系数变(bian)动。

  因此,在做(zuo)音响设(she)计以(yi)及(ji)喇叭设(she)计时,要充分考(kao)虑阻抗是否(fou)匹(pi)配(pei)、功率是否(fou)合(he)理(li)等因素(su)。

此文关键(jian)字:音响喇叭的阻抗和功放阻抗