提出以4路電流模塊LTM4601并聯(lián)的方式實(shí)現(xiàn)低壓大電流輸出的解決方案，其關(guān)鍵是并聯(lián)模塊間的均流，設(shè)計(jì)以4路交錯(cuò)90°的波形分別同步4路模塊的波形交錯(cuò)技術(shù)實(shí)現(xiàn)。設(shè)計(jì)的獨(dú)特之處在于并聯(lián)電源系統(tǒng)輸出電流母線引入電流反饋以實(shí)現(xiàn)輸出電流值的控制。基于大電流印刷電路板(PCB)設(shè)計(jì)得到電源樣機(jī)，其實(shí)驗(yàn)結(jié)果與設(shè)計(jì)目標(biāo)基本相符。實(shí)驗(yàn)得到最大輸出電流達(dá)到40 A，電源轉(zhuǎn)換效率在80%以上，并驗(yàn)證電源系統(tǒng)的過(guò)電壓保護(hù)和過(guò)電流保護(hù)以及強(qiáng)制停機(jī)等功能。

　　Abstract:

　　The paper proposed a low voltage and high output current solution by paralleling four current mode modules LTM4601， and balanced the current of each module by interleaving parallel technique， and synchronized each module by four interleaving 90 degree waves. It was special that controlling the value of output current by inserting feedback from output current mother line. Prototype was made based on high current PCB design， and experiment results are basically identical with design target. The max output current was 40A， and convert efficiency was over 80%. The conclusion was verified experimentally， including over voltage protection， over current protection，run control and so on.