摘要
To meet Energy Star and 80 Plus Titanium standards, the proposed hybrid gate driver reduces the quiescent current (I Q ) to 23.2μA by reducing GaN leakage current. The proposed auto-precharge (APC) technique can reduce the leakage current (I LKG ) in standby mode from a few milliamperes to 60.4μA, resulting in an efficiency greater than 92% at the entire output load. In addition, soft-start clamping (SSC) technique reduces the peak voltage from 2.51kVto 620V, safely reducing power consumption during soft-start. As a result, the LLC converter achieves a peak efficiency of 98.6%.