2098-DSD-HV030-DN，2098-DSD-HV030-DN

、直流電源的工作原理

　 IUXPOWER系列高頻開關(guān)直流電源采用了全橋移相式脈寬調(diào)制軟開關(guān)控制技術(shù)，使得模塊效率進一步提高，諧波減小。高頻開關(guān)直流電源模塊采用三相三線380VAC平衡輸入，無相序要求，無中線電流損耗，在交流輸入端，采用先進的尖峰抑制器件及EMI濾波電路。高頻開關(guān)直流電源由全橋整流電路將三相交流電整流為直流，經(jīng)無源功率因數(shù)校正（PFC）后，再由DC/DC高頻變換電路把所得的直流電逆變成穩(wěn)定可控的直流電輸出。

　　高頻開關(guān)直流電源脈寬調(diào)制電路（PWM）及軟開關(guān)諧振回路根據(jù)電網(wǎng)和負(fù)載的變化，自動調(diào)節(jié)高頻開關(guān)的脈沖寬度和移相角，使輸出電壓電流在任何允許的情況下都能保持穩(wěn)定。YK郵科系列電力高頻開關(guān)電源既可單機工作完成各種基本功能，又可并聯(lián)組合工作，并具有良好的并機均流效果。高頻開關(guān)直流電源通過與微機連接，可實現(xiàn)"遙測、遙信、遙控、遙調(diào)"四遙功能。高頻開關(guān)直流電源具備完善的保護功能，保證模塊或模塊組獨立運行和微機監(jiān)控下系統(tǒng)的安全、穩(wěn)定。高頻開關(guān)直流電源模塊采用總線采樣主、從均流控制方式。在并機運行時，高頻開關(guān)直流電源模塊組中能自動選出一臺主模塊，將分流器采集到的電流、電壓等外部參數(shù)進行處理，集中控制每一臺模塊的輸出電壓、電流。從而，即使在小電流時，也能得到較好的均流效果。

　　當(dāng)市電經(jīng)過輸入開關(guān)接通變壓器將市電電壓轉(zhuǎn)換成所設(shè)計的電壓后,進入了預(yù)穩(wěn)壓電路,預(yù)穩(wěn)壓電路是對所要的輸出電壓進行初步穩(wěn)壓,其目的是降低大功率調(diào)整管的輸入與輸出之間的管壓降，減少大功率調(diào)整管的功耗，提高直流電源的工作效率，預(yù)穩(wěn)壓電源一般由可控硅無級移相調(diào)整式用繼電器切換變壓器輸出的抽頭進行穩(wěn)壓。經(jīng)過預(yù)穩(wěn)壓電源和濾波器后，得到的電壓基本穩(wěn)定紋波相對較小的直流電源，經(jīng)過在控制電路的控制的大功率調(diào)整管進行精確快速的問頂壓后，將得到穩(wěn)壓精度和性能符合標(biāo)準(zhǔn)的直流電壓再經(jīng)過濾波器；進行濾波后既得到我的所需要的輸出直流電為了得到我的所需要的輸出電壓值或穩(wěn)流電流值，我們還需要對輸出的電壓值和電流值進行取樣檢測并將其傳送到控制/保護電路，控制/保護電路將檢測到的輸出電壓值錢和電流值與電壓/電流設(shè)定電路所設(shè)定的值進行比較分析后驅(qū)動預(yù)穩(wěn)壓電路和大功率調(diào)整管使直流穩(wěn)壓電源能輸出我們所設(shè)定的電壓和電流值，同時當(dāng)控制/保護電路檢測到異常的電壓或電流值等情況下將啟動保護電路使直流電源進入保護狀態(tài)。

〖 誠信經(jīng)營,質(zhì)量可靠,進口原裝,超大庫存,當(dāng)天付款,順豐速運,歡迎搶購 〗

〖 AB-模塊 〗 【加工定制：否,工作電壓：220(V),現(xiàn)貨/訂貨,產(chǎn)品圖片,產(chǎn)品價格,僅供參考】

〖 ABB-機器人 〗 【廈門航拓電氣有限公司 ,公司聯(lián)絡(luò)人：小吳 】

〖 施耐德-140Plc 〗 【Tel： 0592-5072236 】
〖 GE-IC693,IC697 〗 【Phone： 18965131356 】
〖 西門子-300,400 〗 【在線QQ： 1665532815 】
〖 福克斯波羅-FBM,Ⅲ代,ⅢI代 〗【Fax： 0592-5072083 】

〖發(fā)那科-各系列,西屋-各系列,安川-各系列,霍尼韋爾-各系列 〗

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