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開關電源主要分哪兩大類呢?

2019/8/30 14:22:54??????點擊:

  人們(men)在開(kai)關(guan)電(dian)源技術領域是(shi)邊(bian)開發相關(guan)電力電子器件,邊(bian)開發開關(guan)變頻技術,兩者(zhe)相互促進推(tui)動(dong)著(zhu)開關(guan)電源每年以超過(guo)兩位數字的增長率向著(zhu)輕、小、薄、低(di)噪聲(sheng)、高可靠、抗干(gan)擾(rao)的方(fang)向發展(zhan)。開關(guan)電源可分為AC/DC和DC/DC兩大類。

微型(xing)低功(gong)率(lv)開關電源
  開(kai)關(guan)(guan)(guan)電(dian)(dian)源(yuan)正在(zai)走向大眾化,微(wei)型化。開(kai)關(guan)(guan)(guan)電(dian)(dian)源(yuan)將(jiang)逐(zhu)步取代(dai)變壓(ya)器在(zai)生活中的(de)(de)(de)所有應(ying)用(yong)(yong),低功率微(wei)型開(kai)關(guan)(guan)(guan)電(dian)(dian)源(yuan)的(de)(de)(de)應(ying)用(yong)(yong)要首先體現在(zai),數(shu)顯(xian)表、智能電(dian)(dian)表、手機充電(dian)(dian)器等方(fang)面。現階段國(guo)家在(zai)大力推廣智能電(dian)(dian)網(wang)建設,對電(dian)(dian)能表的(de)(de)(de)要求大幅(fu)提高,開(kai)關(guan)(guan)(guan)電(dian)(dian)源(yuan)將(jiang)逐(zhu)步取代(dai)變壓(ya)器在(zai)電(dian)(dian)能表上面的(de)(de)(de)應(ying)用(yong)(yong)。
反轉(zhuan)式串聯開關電源
  反(fan)轉(zhuan)式(shi)串(chuan)聯(lian)(lian)開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)源與一(yi)般串(chuan)聯(lian)(lian)式(shi)開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)源的(de)(de)區別是(shi),這種反(fan)轉(zhuan)式(shi)串(chuan)聯(lian)(lian)開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)源輸(shu)出的(de)(de)電(dian)(dian)壓是(shi)負電(dian)(dian)壓,正好與一(yi)般串(chuan)聯(lian)(lian)式(shi)開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)源輸(shu)出的(de)(de)正電(dian)(dian)壓極性相反(fan);并(bing)且由于儲能電(dian)(dian)感L只在(zai)開(kai)(kai)(kai)關(guan)(guan)(guan)K關(guan)(guan)(guan)斷時才向負載輸(shu)出電(dian)(dian)流(liu),因(yin)此,在(zai)相同條件下,反(fan)轉(zhuan)式(shi)串(chuan)聯(lian)(lian)開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)源輸(shu)出的(de)(de)電(dian)(dian)流(liu)比(bi)串(chuan)聯(lian)(lian)式(shi)開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)源輸(shu)出的(de)(de)電(dian)(dian)流(liu)小一(yi)倍。

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