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直流電壓變換器是一種什么元件?

發表時間:2021-03-30 17:02【 閱讀量:-查看手機網址
掃一掃!直流電壓變換器是一種什么元件?掃一掃!

  直流電壓變換器是一種將模擬量轉變為數字量的半導體元件。按功能可分為:升壓變版換器、降壓變換器和升降權壓變換器。在燃料電池汽車中主要采用升壓變換器。變換器首先通過電力電子器件將直流電源轉變成交流電(AC),一般稱作逆變,然后通過變壓器(升壓比為1∶n)升壓,最后通過整流、濾波電路產生變壓后的直流電,以供負載使用.直流變換器與一般的變換器相比,具有抗干擾能力強、可靠性高、輸出功率大、品種齊全等特點,用途廣泛,輸入輸出完全隔離,輸出多路不限,極性任選。


  寬范圍輸入變換器是專為滿足輸入電壓變化范圍較大場合需要而開發的一種直流穩壓電源,其輸入直流電壓可以在DC100V-375V寬范圍內變動而保證輸出電壓的穩定性.此外,這種電源體積小,重量輕、保護功能完善,具有良好的電磁兼容性。本身具有過流、過熱、短路保護。多檔輸出的變換器,它不僅提供電源而且有振鈴和報警功能。該變換器分為軍用、工業及商業三個品級,在諸如通信機房、艦船等蓄電池供電的場合極為適用。

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