低電壓輸出的穩壓電源模塊（VRM）

摘要：新一代微處理機要求供電電源的輸出電壓低至1-2V，輸出電流達50-100A，并且電流轉換速率高。因而需要高效率高。因而需要高效率、快速響應、高密度的低電壓輸出穩壓電源模塊（VRM）。為提高VRM的效率，輸入電壓為12V的VRM，廣泛應用了同步整流BUCK變換器。多通道交錯并聯拓撲的電感小，可改進VRM的瞬態響應。輸入電壓為48V的VRM，應用有隔離變壓器的電路拓撲，如有源箝位正激變換器、半橋變換器等。 敘詞：穩壓電源模塊（VRM） 電流轉換速率 SR-BUCK變換器 多通道 交錯（移相）控制 高壓及低壓輸入的VRM Abstract：It is expected that next generation of data processing IC's will demand power supplies with as low as 1-2V output voltages and draw figher current to 50-100 A with high slew rate.The voltage regulator module(VRM) with low output voltage which feeds micro-processors have to have high efficiency,fast reponse and high density.In order to improve the efficiency of the VRM the SR-BUCK converter is widely used for the 12V input VRM.Multi-Channel interleaving makes it possible to use small inductance to improve transient reponse of the VRM.The isolated converter topology is used for 48V input VRM,such as active clamped forward or half-bridge converters. Keyword：voltage regulator module(VRM) slew rate SR-BUCK converter multi-channel interleaving(phase-shifted) control VRM with low and high input voltage