Resonant Hybrid Flyback, a New Topology for High Density Power Adaptors
Metadatos
Mostrar el registro completo del ítemAutor
Medina-Garcia, Alfredo; Schlenk, Manfred; Morales Santos, Diego Pedro; Rodríguez Santiago, NoelEditorial
MDPI
Materia
Adaptor Flyback Power density Efficiency MOSFET GaN
Fecha
2018-12-01Referencia bibliográfica
Medina-Garcia, A.[et al.]. Hybrid Flyback, a New Topology for High Density Power Adaptors. Electronics 2018, 7, 363; doi:10.3390/electronics7120363.
Patrocinador
This research is financed by Infineon Tecnologias AG.Resumen
In this article, an innovative power adaptor based on the asymmetrical pulse width
modulation (PWM) flyback topology will be presented. Its benefits compared to other state-of-the-art
topologies, such as the active clamp flyback, are analyzed in detail. It will also describe the control
methods to achieve high efficiency and power density using zero-voltage switching (ZVS) and
zero-current switching (ZCS) techniques over the full range of the input voltage and the output load,
providing comprehensive guidelines for the practical design. Finally, we demonstrate the convenience
of the proposed design methods with a 65 W adaptor prototype achieving a peak efficiency of close
to 95% and a minimum efficiency of 93.4% at full load over the range of the input voltage, as well as
a world-class power density of 22 W/inch3 cased.