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在大功率領域,中點鉗位三電平和H橋級聯中壓變頻器應用最廣泛,本文在詳細討論它們優缺點的基礎上給出其主要適用場合,并分別介紹了它們各自的改進方案。文中還介紹了三種較少應用的多電平變換器:有源中點鉗位三電平逆變器;電容鉗位四電平變頻器和在相支路中接入耦合電抗的多電平變換器。
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USB 2.0 Specification Engineering Change Notice (ECN) #1: Mini-B connector Date: 10/20/2000 Reason for ECN: The USB 2.0 specified device-side connector – the B connector – is too large for use with a new generation of handheld and mobile devices, e.g., cell phones which would benefit from connectivity to the PC. This ECN incorporates a specification of a device-side mini connector (hereafter r