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Article

Resonant Hybrid Flyback, a New Topology for High Density Power Adaptors

1
Infineon Technologies AG, 85579 Munich, Germany
2
Pervasive Electronics Advanced Research Laboratory, Department of Electronics and Computer Technology, University of Granada, 18071 Granada, Spain
*
Author to whom correspondence should be addressed.
Electronics 2018, 7(12), 363; https://doi.org/10.3390/electronics7120363
Received: 1 November 2018 / Revised: 20 November 2018 / Accepted: 26 November 2018 / Published: 1 December 2018
(This article belongs to the Section Power Electronics)
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. View Full-Text
Keywords: adaptor; flyback; power density; efficiency; MOSFET; GaN adaptor; flyback; power density; efficiency; MOSFET; GaN
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MDPI and ACS Style

Medina-Garcia, A.; Schlenk, M.; Morales, D.P.; Rodriguez, N. Resonant Hybrid Flyback, a New Topology for High Density Power Adaptors. Electronics 2018, 7, 363. https://doi.org/10.3390/electronics7120363

AMA Style

Medina-Garcia A, Schlenk M, Morales DP, Rodriguez N. Resonant Hybrid Flyback, a New Topology for High Density Power Adaptors. Electronics. 2018; 7(12):363. https://doi.org/10.3390/electronics7120363

Chicago/Turabian Style

Medina-Garcia, Alfredo, Manfred Schlenk, Diego P. Morales, and Noel Rodriguez. 2018. "Resonant Hybrid Flyback, a New Topology for High Density Power Adaptors" Electronics 7, no. 12: 363. https://doi.org/10.3390/electronics7120363

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