您的位置：電源在線首頁(yè)>>技術(shù)文摘>>設(shè)計(jì)分析>>低電壓大電流軟開(kāi)關(guān)電源的設(shè)計(jì)正文

低電壓大電流軟開(kāi)關(guān)電源的設(shè)計(jì)

摘要：本文介紹了一種大功率低壓大電流開(kāi)關(guān)電源的設(shè)計(jì)方案,該電源滿(mǎn)載輸出功率為60kW（5000A/12V），采用軟開(kāi)關(guān)移相全橋控制方式,實(shí)現(xiàn)了零電壓軟開(kāi)關(guān);控制電路中采用了穩(wěn)壓穩(wěn)流自動(dòng)轉(zhuǎn)換方案，實(shí)現(xiàn)了輸出穩(wěn)壓穩(wěn)流的自動(dòng)切換，提高了輸出性能;采用多個(gè)變壓器串并聯(lián)結(jié)構(gòu)，使并聯(lián)的輸出整流二極管之間實(shí)現(xiàn)自動(dòng)均流;設(shè)計(jì)并使用了容性功率母排，減小了系統(tǒng)中的振蕩，減小了功率母排的發(fā)熱，達(dá)到了令人滿(mǎn)意的實(shí)驗(yàn)結(jié)果。 敘詞：移相FB-PWM, 軟開(kāi)關(guān), 無(wú)感功率母排, 變壓器 Abstract：This paper presents one design of switching power supply which is high power, low voltage and high current, the full load output power of which is 60kW(5000A/12V). The strategy of phase-shifted soft-switch full-bridge control is applied in the power supply, which realizes zero-voltage soft switching. The control circuit adopts the strategy of automatic conversion with steady voltage and steady current, which results in the automatic shift of output steady voltage and steady current, thus improving the output quality. The power supply uses multi-transformer-series-parallel structure, which results in the automatic load sharing among each output rectifier diode that is paralleled. And the performance is observably improved by inductance-less power bus. Keyword：shifting phase PWM, soft switching, inductance-less power bus, transformer

我要發(fā)表評(píng)論：

驗(yàn)證碼：

用戶(hù)名：  密碼：  

敬請(qǐng)注意：
·尊重網(wǎng)上道德，遵守中華人民共和國(guó)各項(xiàng)有關(guān)法律、法規(guī)
·遵守《全國(guó)人大常委會(huì)關(guān)于維護(hù)互聯(lián)網(wǎng)安全的決定》及《互聯(lián)網(wǎng)電子公告服務(wù)管理規(guī)定》
·承擔(dān)一切因您的行為而直接或間接導(dǎo)致的民事或刑事法律責(zé)任
·電源世界網(wǎng)網(wǎng)站管理人員有權(quán)保留或刪除留言中的任意內(nèi)容
·您在本網(wǎng)站相關(guān)欄目發(fā)表的評(píng)論信息，本網(wǎng)站有權(quán)在網(wǎng)站內(nèi)轉(zhuǎn)載或引用
·不要重復(fù)發(fā)布評(píng)論信息，評(píng)論內(nèi)容不能超過(guò)200個(gè)字符
·參與本評(píng)論即表明您已經(jīng)閱讀并接受上述條款