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A conventional phase-shift full-bridge (PSFB) converter suffers from easy failure of zero-voltage switching (ZVS) in the lagging leg under light load conditions. This poses a significant challenge to the optimal design of PSFB-based plug-in electric vehicle (PEV) onboard chargers. In this paper, a self-reconfigured integrated onboard charger architecture is proposed for PEVs to cope with this design...
In this paper, an integrated onboard charger architecture is proposed for plug-in electric vehicle (PEV). In this architecture, the phase shift full bridge (PSFB) converter serves as the main high voltage battery charging topology, and the half bridge LLC resonant converter serves as the low voltage battery charging topology. Under light charging mode, the half-bridge LLC is reconfigured to be paralleled...
In a two stage LLC based plug-in electric vehicle (PEV) onboard charger, the dc link voltage is usually kept constant while the battery pack voltage varies in a wide range. This makes it extremely difficult to optimally design the second stage pulse frequency modulated (PFM) LLC resonant converter. In this paper, a modified pulse width modulated (PWM) LLC resonant topology is proposed and investigated...
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