In this article, based on the LLC resonant converter fundamental harmonic analysis model,
the modulation strategies for LLC resonant converter can be categorized into the following …

LLC resonant converter is a prevalent isolated dc/dc topology due to its high efficiency, high
power density, and simple structure. However, it is challenging to optimize the design of …

In conventional LLC-based plug-in electric vehicle (PEV) onboard chargers, the battery pack
voltage varies in a wide range with the change of state of charge. This makes it difficult to …

This paper presents a theoretical analysis, an optimal design method, and experimental
results for a wireless power transfer (WPT) system with an intermediate coil. The analytical …

Recently, the full-bridge (FB) LLC resonant converter is getting more attention due to its zero-
voltage switching of the primary switches, zero-current switching of rectifier diodes, and high …

High switching frequency is an effective method to improve power density for LLC resonant
converters. However, conventional digital controllers, such as general-purpose digital signal …

In this paper, an effective output voltage control method using adjustable frequency-duty-
cycle hybrid control is presented. By using the proposed method, the operating performance …

A control method that improves performance of series-resonant converters that operate with
a wide input voltage and/or output voltage range by substantially reducing their switching …

In this paper, the soft start-up process for the LLC resonant converter is investigated and
optimized based on a graphical state-trajectory analysis. By setting a current limitation band …

A new LLC series resonant converter that has a narrow switching frequency variation and
reduced conduction losses is proposed in this paper. In the proposed converter, one leg of …