二(er)(er)(er)(er)(er)(er)极(ji)管功(gong)(gong)率(lv)(lv)器件(jian)的(de)(de)反(fan)向(xiang)(xiang)击(ji)(ji)穿(chuan)电(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)高，意味着(zhe)它(ta)能(neng)(neng)够承受较(jiao)高的(de)(de)反(fan)向(xiang)(xiang)电(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)而(er)不(bu)会发生击(ji)(ji)穿(chuan)。击(ji)(ji)穿(chuan)是(shi)指当反(fan)向(xiang)(xiang)电(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)超过(guo)(guo)二(er)(er)(er)(er)(er)(er)极(ji)管的(de)(de)击(ji)(ji)穿(chuan)电(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)时(shi)(shi)，电(dian)(dian)(dian)(dian)(dian)(dian)流(liu)会突(tu)然(ran)增(zeng)加，导致(zhi)二(er)(er)(er)(er)(er)(er)极(ji)管失(shi)去正(zheng)常(chang)(chang)工(gong)作状(zhuang)态。击(ji)(ji)穿(chuan)可(ke)(ke)能(neng)(neng)会导致(zhi)二(er)(er)(er)(er)(er)(er)极(ji)管烧毁或(huo)损(sun)坏，从(cong)而(er)使整个电(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)失(shi)效。通过(guo)(guo)选择具有(you)高反(fan)向(xiang)(xiang)击(ji)(ji)穿(chuan)电(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)的(de)(de)二(er)(er)(er)(er)(er)(er)极(ji)管功(gong)(gong)率(lv)(lv)器件(jian)，可(ke)(ke)以(yi)(yi)有(you)效地保(bao)(bao)(bao)护电(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)免受过(guo)(guo)电(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)损(sun)害。当电(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)中出(chu)现过(guo)(guo)电(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)时(shi)(shi)，二(er)(er)(er)(er)(er)(er)极(ji)管能(neng)(neng)够承受较(jiao)高的(de)(de)反(fan)向(xiang)(xiang)电(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)，阻止电(dian)(dian)(dian)(dian)(dian)(dian)流(liu)突(tu)然(ran)增(zeng)加并(bing)保(bao)(bao)(bao)持正(zheng)常(chang)(chang)工(gong)作状(zhuang)态。这样可(ke)(ke)以(yi)(yi)保(bao)(bao)(bao)护其他(ta)电(dian)(dian)(dian)(dian)(dian)(dian)子元件(jian)免受过(guo)(guo)电(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)的(de)(de)影(ying)(ying)响。二(er)(er)(er)(er)(er)(er)极(ji)管功(gong)(gong)率(lv)(lv)器件(jian)的(de)(de)反(fan)向(xiang)(xiang)击(ji)(ji)穿(chuan)电(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)高还可(ke)(ke)以(yi)(yi)提高电(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)可(ke)(ke)靠性(xing)和(he)(he)稳定性(xing)。在正(zheng)常(chang)(chang)工(gong)作条件(jian)下，电(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)中的(de)(de)电(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)通常(chang)(chang)是(shi)稳定的(de)(de)。然(ran)而(er)，由于电(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)波动、温(wen)度(du)变化或(huo)其他(ta)因素，电(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)中的(de)(de)电(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)可(ke)(ke)能(neng)(neng)会发生变化。如果(guo)二(er)(er)(er)(er)(er)(er)极(ji)管的(de)(de)反(fan)向(xiang)(xiang)击(ji)(ji)穿(chuan)电(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)较(jiao)低，那(nei)么即使是(shi)较(jiao)小(xiao)的(de)(de)电(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)变化也可(ke)(ke)能(neng)(neng)导致(zhi)击(ji)(ji)穿(chuan)，从(cong)而(er)影(ying)(ying)响电(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)正(zheng)常(chang)(chang)工(gong)作。而(er)具有(you)高反(fan)向(xiang)(xiang)击(ji)(ji)穿(chuan)电(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)的(de)(de)二(er)(er)(er)(er)(er)(er)极(ji)管功(gong)(gong)率(lv)(lv)器件(jian)可(ke)(ke)以(yi)(yi)更好地适(shi)应电(dian)(dian)(dian)(dian)(dian)(dian)压(ya)(ya)(ya)(ya)变化，保(bao)(bao)(bao)持电(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)稳定性(xing)和(he)(he)可(ke)(ke)靠性(xing)。IGBT功(gong)(gong)率(lv)(lv)器件(jian)的(de)(de)开关损(sun)耗小(xiao)，能(neng)(neng)够减少能(neng)(neng)源(yuan)消耗和(he)(he)碳排(pai)放。西(xi)安工(gong)业市场功(gong)(gong)率(lv)(lv)器件(jian)

IGBT功率(lv)器件(jian)(jian)由P型(xing)半(ban)导(dao)(dao)体和(he)(he)N型(xing)半(ban)导(dao)(dao)体组(zu)成(cheng)(cheng)，中间有(you)一层PN结。在正常工作状(zhuang)态(tai)(tai)下(xia)，N型(xing)半(ban)导(dao)(dao)体中的(de)(de)少(shao)量载(zai)流(liu)(liu)子(zi)(zi)会向(xiang)P型(xing)半(ban)导(dao)(dao)体扩散(san)(san)，形成(cheng)(cheng)空穴；而(er)在反向(xiang)电(dian)(dian)压(ya)作用(yong)下(xia)，P型(xing)半(ban)导(dao)(dao)体中的(de)(de)多数载(zai)流(liu)(liu)子(zi)(zi)会向(xiang)N型(xing)半(ban)导(dao)(dao)体扩散(san)(san)，形成(cheng)(cheng)电(dian)(dian)子(zi)(zi)。这(zhei)种载(zai)流(liu)(liu)子(zi)(zi)的(de)(de)扩散(san)(san)和(he)(he)复合过(guo)程使(shi)得(de)PN结两侧(ce)的(de)(de)电(dian)(dian)场发生变化(hua)，从而(er)产生一个与(yu)输(shu)入(ru)电(dian)(dian)压(ya)和(he)(he)电(dian)(dian)流(liu)(liu)方向(xiang)相反的(de)(de)电(dian)(dian)压(ya)。这(zhei)个电(dian)(dian)压(ya)就(jiu)是IGBT的(de)(de)开关(guan)损耗。为了减小(xiao)开关(guan)损耗，提高器件(jian)(jian)的(de)(de)工作效(xiao)率(lv)，通常采用(yong)栅(zha)(zha)极(ji)电(dian)(dian)压(ya)来(lai)控制PN结两侧(ce)的(de)(de)电(dian)(dian)场。具体来(lai)说(shuo)，当(dang)栅(zha)(zha)极(ji)电(dian)(dian)压(ya)为负时(shi)(shi)，N型(xing)半(ban)导(dao)(dao)体中的(de)(de)载(zai)流(liu)(liu)子(zi)(zi)向(xiang)P型(xing)半(ban)导(dao)(dao)体扩散(san)(san)，使(shi)得(de)PN结两侧(ce)的(de)(de)电(dian)(dian)场减弱；而(er)当(dang)栅(zha)(zha)极(ji)电(dian)(dian)压(ya)为正时(shi)(shi)，P型(xing)半(ban)导(dao)(dao)体中的(de)(de)载(zai)流(liu)(liu)子(zi)(zi)向(xiang)N型(xing)半(ban)导(dao)(dao)体扩散(san)(san)，使(shi)得(de)PN结两侧(ce)的(de)(de)电(dian)(dian)场增强。这(zhei)样，通过(guo)改变栅(zha)(zha)极(ji)电(dian)(dian)压(ya)的(de)(de)大小(xiao)和(he)(he)方向(xiang)，可(ke)以实现对IGBT导(dao)(dao)通状(zhuang)态(tai)(tai)的(de)(de)控制。成(cheng)(cheng)都碳(tan)化(hua)硅半(ban)导(dao)(dao)体功率(lv)器件(jian)(jian)三(san)极(ji)管功率(lv)器件(jian)(jian)的(de)(de)抗干扰(rao)(rao)能力较(jiao)强，可(ke)以有(you)效(xiao)抵抗外(wai)界电(dian)(dian)磁干扰(rao)(rao)。

在(zai)高(gao)(gao)(gao)频率(lv)开(kai)关(guan)操(cao)(cao)作(zuo)中(zhong)，IGBT功率(lv)器件具(ju)(ju)(ju)有(you)以下优势：1.减少电(dian)(dian)磁(ci)干(gan)扰(rao)：由(you)于(yu)(yu)IGBT具(ju)(ju)(ju)有(you)较(jiao)(jiao)(jiao)高(gao)(gao)(gao)的(de)(de)(de)(de)输(shu)入阻抗(kang)(kang)(kang)和(he)较(jiao)(jiao)(jiao)低(di)的(de)(de)(de)(de)导通压降(jiang)，使得(de)其在(zai)高(gao)(gao)(gao)频操(cao)(cao)作(zuo)中(zhong)具(ju)(ju)(ju)有(you)较(jiao)(jiao)(jiao)强(qiang)的(de)(de)(de)(de)抗(kang)(kang)(kang)干(gan)扰(rao)能(neng)力。这有(you)助于(yu)(yu)降(jiang)低(di)电(dian)(dian)磁(ci)干(gan)扰(rao)对设(she)(she)(she)备(bei)的(de)(de)(de)(de)影(ying)响(xiang)，提(ti)高(gao)(gao)(gao)设(she)(she)(she)备(bei)的(de)(de)(de)(de)可(ke)靠(kao)(kao)性和(he)稳定性。2.降(jiang)低(di)噪声：高(gao)(gao)(gao)频率(lv)开(kai)关(guan)操(cao)(cao)作(zuo)会产生(sheng)较(jiao)(jiao)(jiao)大(da)的(de)(de)(de)(de)噪声，影(ying)响(xiang)设(she)(she)(she)备(bei)的(de)(de)(de)(de)正常(chang)运行。而IGBT功率(lv)器件具(ju)(ju)(ju)有(you)良好的(de)(de)(de)(de)抗(kang)(kang)(kang)干(gan)扰(rao)能(neng)力，可(ke)以有(you)效(xiao)地降(jiang)低(di)噪声对设(she)(she)(she)备(bei)的(de)(de)(de)(de)影(ying)响(xiang)。3.提(ti)高(gao)(gao)(gao)设(she)(she)(she)备(bei)效(xiao)率(lv)：由(you)于(yu)(yu)IGBT具(ju)(ju)(ju)有(you)较(jiao)(jiao)(jiao)高(gao)(gao)(gao)的(de)(de)(de)(de)输(shu)入阻抗(kang)(kang)(kang)和(he)较(jiao)(jiao)(jiao)低(di)的(de)(de)(de)(de)导通压降(jiang)，使得(de)其在(zai)高(gao)(gao)(gao)频操(cao)(cao)作(zuo)中(zhong)具(ju)(ju)(ju)有(you)较(jiao)(jiao)(jiao)小的(de)(de)(de)(de)损耗。这有(you)助于(yu)(yu)提(ti)高(gao)(gao)(gao)设(she)(she)(she)备(bei)的(de)(de)(de)(de)整体效(xiao)率(lv)，降(jiang)低(di)能(neng)耗。4.简化驱动电(dian)(dian)路(lu)：由(you)于(yu)(yu)IGBT具(ju)(ju)(ju)有(you)较(jiao)(jiao)(jiao)高(gao)(gao)(gao)的(de)(de)(de)(de)开(kai)关(guan)速(su)度(du)和(he)较(jiao)(jiao)(jiao)低(di)的(de)(de)(de)(de)导通压降(jiang)，使得(de)其所需的(de)(de)(de)(de)驱动电(dian)(dian)路(lu)较(jiao)(jiao)(jiao)为(wei)简单(dan)。这有(you)助于(yu)(yu)降(jiang)低(di)设(she)(she)(she)备(bei)的(de)(de)(de)(de)复杂性，提(ti)高(gao)(gao)(gao)系统(tong)的(de)(de)(de)(de)可(ke)靠(kao)(kao)性。

二极管(guan)功(gong)(gong)率(lv)(lv)器(qi)(qi)件的稳(wen)定(ding)性(xing)主要(yao)体现在(zai)(zai)以下(xia)几个方面：1.温度(du)稳(wen)定(ding)性(xing)：二极管(guan)功(gong)(gong)率(lv)(lv)器(qi)(qi)件具(ju)(ju)(ju)有(you)良好的温度(du)稳(wen)定(ding)性(xing)，能(neng)够(gou)在(zai)(zai)较大的温度(du)范围内保(bao)持(chi)正(zheng)常(chang)工(gong)(gong)作。这(zhei)使得设(she)备(bei)在(zai)(zai)高(gao)温或低温环(huan)(huan)境下(xia)都能(neng)保(bao)持(chi)稳(wen)定(ding)的性(xing)能(neng)，提(ti)高(gao)了(le)设(she)备(bei)的稳(wen)定(ding)性(xing)。2.电(dian)压(ya)(ya)稳(wen)定(ding)性(xing)：二极管(guan)功(gong)(gong)率(lv)(lv)器(qi)(qi)件具(ju)(ju)(ju)有(you)较低的电(dian)压(ya)(ya)门槛，即(ji)使在(zai)(zai)电(dian)压(ya)(ya)波动较大的环(huan)(huan)境下(xia)，也能(neng)够(gou)保(bao)持(chi)正(zheng)常(chang)工(gong)(gong)作。这(zhei)有(you)助于提(ti)高(gao)设(she)备(bei)在(zai)(zai)不同电(dian)网环(huan)(huan)境下(xia)的稳(wen)定(ding)性(xing)。3.抗干扰(rao)能(neng)力：二极管(guan)功(gong)(gong)率(lv)(lv)器(qi)(qi)件具(ju)(ju)(ju)有(you)较强的抗电(dian)磁干扰(rao)能(neng)力，能(neng)够(gou)在(zai)(zai)复杂的电(dian)磁环(huan)(huan)境中保(bao)持(chi)稳(wen)定(ding)的工(gong)(gong)作状态。这(zhei)使得设(she)备(bei)在(zai)(zai)受到外(wai)部干扰(rao)时，仍能(neng)保(bao)持(chi)正(zheng)常(chang)工(gong)(gong)作，提(ti)高(gao)了(le)设(she)备(bei)的稳(wen)定(ding)性(xing)。IGBT功(gong)(gong)率(lv)(lv)器(qi)(qi)件是一种高(gao)性(xing)能(neng)的半导体器(qi)(qi)件，具(ju)(ju)(ju)有(you)高(gao)电(dian)压(ya)(ya)和高(gao)电(dian)流承受能(neng)力。

IGBT功(gong)率器件(jian)具(ju)有稳(wen)定(ding)(ding)的(de)(de)(de)(de)(de)开关(guan)特性(xing)，能(neng)(neng)够保(bao)证系(xi)统的(de)(de)(de)(de)(de)稳(wen)定(ding)(ding)性(xing)和(he)可靠(kao)性(xing)。IGBT的(de)(de)(de)(de)(de)开关(guan)速度快、开关(guan)损耗低，能(neng)(neng)够稳(wen)定(ding)(ding)地进行(xing)高(gao)频率的(de)(de)(de)(de)(de)开关(guan)操作(zuo)。IGBT具(ju)有较高(gao)的(de)(de)(de)(de)(de)耐压能(neng)(neng)力和(he)耐温能(neng)(neng)力，能(neng)(neng)够在恶(e)劣环境下稳(wen)定(ding)(ding)工(gong)作(zuo)。IGBT还具(ju)有多种保(bao)护功(gong)能(neng)(neng)和(he)软开关(guan)功(gong)能(neng)(neng)，能(neng)(neng)够保(bao)护系(xi)统的(de)(de)(de)(de)(de)安全运行(xing)。此外，IGBT还具(ju)有低驱(qu)动(dong)电压、小(xiao)驱(qu)动(dong)功(gong)率、高(gao)集成度和(he)小(xiao)体积等优点，能(neng)(neng)够满足系(xi)统对功(gong)耗、成本和(he)尺寸的(de)(de)(de)(de)(de)要求。因此，IGBT功(gong)率器件(jian)是一种理想的(de)(de)(de)(de)(de)选择，能(neng)(neng)够提高(gao)系(xi)统的(de)(de)(de)(de)(de)稳(wen)定(ding)(ding)性(xing)和(he)可靠(kao)性(xing)。三极(ji)管(guan)功(gong)率器件(jian)的(de)(de)(de)(de)(de)可靠(kao)性(xing)较高(gao)，寿命长(zhang)，适用(yong)于长(zhang)时(shi)间运行(xing)的(de)(de)(de)(de)(de)电子设备。INTERSILIGBT功(gong)率器件(jian)供货价格

二极管功(gong)率(lv)器件的尺寸(cun)小巧，适(shi)合(he)于(yu)紧凑型电(dian)子设备(bei)的设计。西安工业市场功(gong)率(lv)器件

三(san)极(ji)管功(gong)率(lv)器(qi)(qi)件(jian)(jian)(jian)(jian)的(de)(de)(de)(de)电(dian)(dian)流(liu)放大(da)(da)(da)倍(bei)(bei)数(shu)通(tong)常用(yong)β值(zhi)来表示。β值(zhi)是指集电(dian)(dian)区电(dian)(dian)流(liu)与(yu)基区电(dian)(dian)流(liu)之(zhi)间(jian)的(de)(de)(de)(de)比(bi)值(zhi)。一般来说，β值(zhi)越(yue)大(da)(da)(da)，电(dian)(dian)流(liu)放大(da)(da)(da)倍(bei)(bei)数(shu)就越(yue)高(gao)(gao)。三(san)极(ji)管功(gong)率(lv)器(qi)(qi)件(jian)(jian)(jian)(jian)的(de)(de)(de)(de)β值(zhi)通(tong)常在(zai)几(ji)十到(dao)(dao)几(ji)百之(zhi)间(jian)，有些高(gao)(gao)性(xing)能的(de)(de)(de)(de)器(qi)(qi)件(jian)(jian)(jian)(jian)甚至(zhi)可(ke)以(yi)达到(dao)(dao)上千。这(zhei)意(yi)味着当输(shu)(shu)(shu)入(ru)信号的(de)(de)(de)(de)电(dian)(dian)流(liu)较小(xiao)时(shi)，通(tong)过(guo)三(san)极(ji)管放大(da)(da)(da)后的(de)(de)(de)(de)输(shu)(shu)(shu)出(chu)信号电(dian)(dian)流(liu)可(ke)以(yi)达到(dao)(dao)较大(da)(da)(da)的(de)(de)(de)(de)数(shu)值(zhi)。三(san)极(ji)管功(gong)率(lv)器(qi)(qi)件(jian)(jian)(jian)(jian)的(de)(de)(de)(de)电(dian)(dian)流(liu)放大(da)(da)(da)倍(bei)(bei)数(shu)还(hai)可(ke)以(yi)用(yong)于电(dian)(dian)源(yuan)稳(wen)(wen)压(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)设计。电(dian)(dian)源(yuan)稳(wen)(wen)压(ya)(ya)器(qi)(qi)是一种(zhong)用(yong)于稳(wen)(wen)定(ding)输(shu)(shu)(shu)出(chu)电(dian)(dian)压(ya)(ya)的(de)(de)(de)(de)电(dian)(dian)子设备(bei)。它通(tong)常由一个三(san)极(ji)管功(gong)率(lv)器(qi)(qi)件(jian)(jian)(jian)(jian)和(he)一些辅助电(dian)(dian)路组成(cheng)。当输(shu)(shu)(shu)入(ru)电(dian)(dian)压(ya)(ya)发生变化时(shi)，三(san)极(ji)管功(gong)率(lv)器(qi)(qi)件(jian)(jian)(jian)(jian)可(ke)以(yi)根据输(shu)(shu)(shu)入(ru)信号的(de)(de)(de)(de)大(da)(da)(da)小(xiao)调整输(shu)(shu)(shu)出(chu)电(dian)(dian)压(ya)(ya)，从而实现电(dian)(dian)源(yuan)的(de)(de)(de)(de)稳(wen)(wen)定(ding)输(shu)(shu)(shu)出(chu)。这(zhei)种(zhong)电(dian)(dian)流(liu)放大(da)(da)(da)倍(bei)(bei)数(shu)较高(gao)(gao)的(de)(de)(de)(de)特性(xing)使得(de)电(dian)(dian)源(yuan)稳(wen)(wen)压(ya)(ya)器(qi)(qi)能够在(zai)输(shu)(shu)(shu)入(ru)电(dian)(dian)压(ya)(ya)波动较大(da)(da)(da)的(de)(de)(de)(de)情(qing)况下保持(chi)输(shu)(shu)(shu)出(chu)电(dian)(dian)压(ya)(ya)的(de)(de)(de)(de)稳(wen)(wen)定(ding)性(xing)。西(xi)安工业(ye)市场功(gong)率(lv)器(qi)(qi)件(jian)(jian)(jian)(jian)

本文来自东莞富发玻璃制品有限(xian)公司：//diyijian.cn/Article/81d47999439.html