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In this paper a digital control technique for light load efficiency and THD improvement for a PFC converter is presented. This technique does not require any complex external logic or cycle intensive software algorithms. When a PFC converter runs in discontinuous conduction mode (DCM) and the PFC MOSFET is in off state, the energy in the MOSFET parasitic capacitance resonates between the PFC inductor...
Conventional power converters control pulse width modulation (PWM) signals based on the directly sensed feedback signals or estimated state signals. Recently, information and communication technologies are beginning to integrate power converters into smart grid applications. This paper presents a Hardware-In-The-Loop Testbed using a WirelessHART network for smart home applications in a case study...
Coupled inductor has been widely used in voltage regulator (VR) applications for many years because it can help reducing current ripple and improving transient performance. In this paper, the coupled inductor concept is applied to interleaved totem-pole critical conduction mode (CRM) PFC converter for 6.6kW on board battery charger. The difference between negative coupling and positive coupling will...
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