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The interleaved structure of LLC resonant converter with the phase-shift modulation (PSM) is presented and then its optimum operating region is discussed. The LLC resonant converters can achieve zero-voltage switching (ZVS) of the primary switches and zero-current switching (ZCS) of the secondary switches. However, the secondary peak current is large due to the discontinuous conduction mode (DCM)...
In this paper, the effect of phase shift modulation on the LLC resonant converter for an interleaved LLC resonant converter with phase shift modulation is investigated. The LLC resonant converters can achieve zero voltage switching (ZVS) of the primary switches and the zero current switching of secondary switches. Due to the sinusoidal shapes and discontinuous conduction of secondary current, the...
This paper presents a novel interleaved LLC resonant converter using phase shift modulation (PSM). The LLC resonant converters can achieve zero voltage switching (ZVS) of primary switches and zero current switching (ZCS) of secondary switches. However, the peak of secondary current is large due to the discontinuous current in secondary side. The PFM controlled interleaved LLC resonant converter has...
This paper presents a new synchronous rectifier method for a LLC resonant converter with voltage-doubler. The pulse width of secondary rectifier cannot be obtained in LLC resonant converter based on the primary side current because primary current include not only the current that is transferred to the secondary side but also the magnetizing current. In the proposed method, the pulse width of synchronous...
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