开关(guan)(guan)电(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)是利用(yong)(yong)现代电(dian)(dian)(dian)(dian)(dian)(dian)力(li)电(dian)(dian)(dian)(dian)(dian)(dian)子技术，采用(yong)(yong)功率半导体器(qi)件作为开关(guan)(guan)，通(tong)过(guo)控制(zhi)开关(guan)(guan)晶体管(guan)开通(tong)和(he)关(guan)(guan)断(duan)的(de)(de)(de)时(shi)间(jian)比率(占(zhan)空(kong)比)，调(diao)整输出(chu)电(dian)(dian)(dian)(dian)(dian)(dian)压，维(wei)持输出(chu)稳定的(de)(de)(de)一(yi)种电(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)。早(zao)在 20世纪80年(nian)代计算机电(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)全面实现了开关(guan)(guan)电(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)化，率先完成(cheng)计算机电(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)换代，进入(ru)90年(nian)代开关(guan)(guan)电(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)已(yi)广泛应用(yong)(yong)在各种电(dian)(dian)(dian)(dian)(dian)(dian)子、电(dian)(dian)(dian)(dian)(dian)(dian)器(qi)设备，程控交换机、通(tong)讯、电(dian)(dian)(dian)(dian)(dian)(dian)力(li)检测设备电(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)和(he)控制(zhi)设备电(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)之(zhi)中。经过(guo)三十多年(nian)的(de)(de)(de)发(fa)展，中国的(de)(de)(de)开关(guan)(guan)电(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)产(chan)业(ye)已(yi)形成(cheng)了自己完善的(de)(de)(de)产(chan)业(ye)链。据中国电(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)学会(hui)统计，目(mu)前国内生(sheng)产(chan)开关(guan)(guan)电(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)的(de)(de)(de)企业(ye)超过(guo)一(yi)千家。

  开(kai)(kai)(kai)(kai)关(guan)(guan)电(dian)(dian)(dian)源(yuan)(yuan)(yuan)是(shi)电(dian)(dian)(dian)子电(dian)(dian)(dian)源(yuan)(yuan)(yuan)的(de)(de)主要大(da)类(lei)产(chan)品(pin)(pin)，由(you)于其小型(xing)化、重量轻(qing)、功率密度/转换效率高(gao)、输(shu)入电(dian)(dian)(dian)压范围广、热消(xiao)耗较少等众多种优点，并得益于电(dian)(dian)(dian)子产(chan)品(pin)(pin)轻(qing)薄短小的(de)(de)需求趋(qu)势，其发展迅(xun)速，迅(xun)速取代线性电(dian)(dian)(dian)源(yuan)(yuan)(yuan)普及于各种电(dian)(dian)(dian)子产(chan)品(pin)(pin)领域。根据中国电(dian)(dian)(dian)源(yuan)(yuan)(yuan)学会收集整理的(de)(de)数据，2008年全国开(kai)(kai)(kai)(kai)关(guan)(guan)电(dian)(dian)(dian)源(yuan)(yuan)(yuan)(主要包含(han)消(xiao)费类(lei)开(kai)(kai)(kai)(kai)关(guan)(guan)电(dian)(dian)(dian)源(yuan)(yuan)(yuan)、工业类(lei)开(kai)(kai)(kai)(kai)关(guan)(guan)电(dian)(dian)(dian)源(yuan)(yuan)(yuan)、通信电(dian)(dian)(dian)源(yuan)(yuan)(yuan)、PC电(dian)(dian)(dian)源(yuan)(yuan)(yuan))产(chan)值达到855亿(yi)(yi)元(yuan)，2009年达931亿(yi)(yi)元(yuan)，增长(zhang)8.8%;2010年达到1027 亿(yi)(yi)元(yuan)，增长(zhang)10.3%。按开(kai)(kai)(kai)(kai)关(guan)(guan)电(dian)(dian)(dian)源(yuan)(yuan)(yuan)应用领域细分(fen)，占(zhan)(zhan)据全行业产(chan)出份(fen)额第一的(de)(de)是(shi)工业类(lei)开(kai)(kai)(kai)(kai)关(guan)(guan)电(dian)(dian)(dian)源(yuan)(yuan)(yuan)，2010年达到全行业产(chan)值的(de)(de)比重为56%，居第二(er)位的(de)(de)是(shi)消(xiao)费类(lei)开(kai)(kai)(kai)(kai)关(guan)(guan)电(dian)(dian)(dian)源(yuan)(yuan)(yuan)，占(zhan)(zhan)32%，通信开(kai)(kai)(kai)(kai)关(guan)(guan)电(dian)(dian)(dian)源(yuan)(yuan)(yuan)占(zhan)(zhan)6%，PC开(kai)(kai)(kai)(kai)关(guan)(guan)电(dian)(dian)(dian)源(yuan)(yuan)(yuan)占(zhan)(zhan)3%。

  节能降耗(hao)开关电(dian)源(yuan)给力家用电(dian)器“智”造

家(jia)电(dian)智能(neng)(neng)化，作为当(dang)今家(jia)电(dian)产业(ye)(ye)(ye)绿(lv)色、节能(neng)(neng)的(de)另一大发展趋势，它(ta)是随着节能(neng)(neng)减(jian)排技术改造后，对(dui)家(jia)电(dian)产业(ye)(ye)(ye)有针对(dui)性(xing)(xing)的(de)，趋于更(geng)人性(xing)(xing)化理念的(de)升级诠释。根据智能(neng)(neng)的(de)概念，只有模拟人的(de)某种(zhong)能(neng)(neng)力，从而(er)能(neng)(neng)够对(dui)自(zi)身性(xing)(xing)能(neng)(neng)进行自(zi)我完善，达到(dao)人类某种(zhong)需(xu)求，这就是真正的(de)智能(neng)(neng)家(jia)用电(dian)器(qi)，而(er)开关电(dian)源产业(ye)(ye)(ye)的(de)加入，也让(rang)家(jia)电(dian)产业(ye)(ye)(ye) “智”造更(geng)加给力。

   随着上游元器(qi)件技(ji)术水(shui)平(ping)的(de)(de)(de)提高(gao)和自身关(guan)键(jian)技(ji)术的(de)(de)(de)不断发(fa)展(zhan)(zhan)，开关(guan)电(dian)源技(ji)术在过去30年中取得(de)了飞(fei)速(su)的(de)(de)(de)发(fa)展(zhan)(zhan)。到20世纪 80年代(dai)后(hou)期，开关(guan)电(dian)源的(de)(de)(de)成(cheng)本和控制电(dian)路问题等技(ji)术难关(guan)被攻克后(hou)，其已迅(xun)速(su)成(cheng)长(zhang)为电(dian)源中的(de)(de)(de)主流(liu)产(chan)品(pin)。在节能降耗政策环境的(de)(de)(de)影响下，高(gao)效、节能已经成(cheng)为电(dian)源类产(chan)品(pin)发(fa)展(zhan)(zhan)的(de)(de)(de)方向，电(dian)源企业在设(she)计、材(cai)料、工艺等方面已实现技(ji)术升级，在数(shu)字电(dian)视、LED、IT等新兴领域(yu)的(de)(de)(de)智能化应(ying)用也将呈现出稳定增长(zhang)的(de)(de)(de)趋势，并(bing)带(dai)给(ji)我国(guo)开关(guan)电(dian)源行业更大(da)市场空(kong)间，并(bing)使之继(ji)续保持快速(su)发(fa)展(zhan)(zhan)。

   根据(ju)国际知名调查(cha)机(ji)构DATABEANS统计数据(ju)，从2004年(nian)(nian)至2010年(nian)(nian)每年(nian)(nian)全球开关电(dian)(dian)源(yuan)市(shi)场(chang)(chang)销售额平(ping)均保(bao)持了15%左(zuo)右(you)的(de)幅(fu)度增长(zhang)，到(dao)2010年(nian)(nian)约为(wei)(wei)120亿美元(yuan)(yuan)的(de)销售额，其(qi)中(zhong)消(xiao)费电(dian)(dian)子类电(dian)(dian)源(yuan)、通讯领域电(dian)(dian)源(yuan)和(he)工业领域电(dian)(dian)源(yuan)的(de)市(shi)场(chang)(chang)份额分别排名前三位，其(qi)市(shi)场(chang)(chang)规模分别为(wei)(wei)35亿美元(yuan)(yuan)、34亿美元(yuan)(yuan)、25亿美元(yuan)(yuan)。

提(ti)升服务竞争力实现(xian)开关电源(yuan)产业高效(xiao)复合(he)增长