Finding the most appropriate architecture to achieve a function is a major engineering challenge. In the power conversion context, the question that arises is: what is the best trade-off between an architecture based on a single high-power converter and another based on the combination of multiple low-power converters? This article aims to answer t...
A 1-kW, 400-V input and 18-36V output dc-dc converter is developed as the basic cell of a future voltage-adaptable industrial battery charger. Aligned with the current paradigm shift from tradition silicon to wide-bandgap devices, gallium nitride high electron mobility transistors (GaN HEMTs) are used for high switching frequency and converter comp...
L'électrification des aéronefs définit les nouvelles exigences imposées à l'électronique de puissance moderne. Augmenter la densité de puissance, le rendement, et la fiabilité des convertisseurs, tout en faisant face à des contraintes spécifiques, faibles pressions, haute température, normes, est une priorité pour l'industrie aéronautiques. Le déve...
This dissertation focuses on the integration of two power electronic converters present in the electric vehicle (EV) architecture – the DC-DC con-verter interfacing the high and low voltage batteries (400V/14V) and the onboard charger (OBC). A three-port current-fed parallel resonant topology with zero voltage switching capability is developed. The...
To be compatible with all the existing spacecraft, 3D PLUS is developing a Front end power converter, which works from DC18V to DC110V for the input voltage, from DC3V for the output voltage and from 0W to 50W for the output power. The transformer design is critical because it should not penalize the operation of the converter in a reduced size. Th...
High Frequency LLC requires a smaller resonant inductance which is usually implemented by transformer leakage inductance. However, this small resonant inductance is difficult to deal with a wide input voltage range. This paper proposes a new method to implement a larger resonant inductance by using a magnetic shunt integrated into planar transforme...
This paper proposes an improved partially interleaved structure for high-voltage (Several kV) high-frequency (Several hundred kHz) multiple output applications. Six structures are compared with the leakage inductance, AC capacitance and the rate of AC/DC resistance taken into consideration. The proposed structure features lower leakage inductance, ...
This paper proposes an improved partially interleaved structure for high-voltage (Several kV) high-frequency (Several hundred kHz) multiple output applications. Six structures are compared with the leakage inductance, AC capacitance and the rate of AC/DC resistance taken into consideration. The proposed structure features lower leakage inductance, ...
This paper proposes an improved partially interleaved structure for high-voltage (Several kV) high-frequency (Several hundred kHz) multiple output applications. Six structures are compared with the leakage inductance, AC capacitance and the rate of AC/DC resistance taken into consideration. The proposed structure features lower leakage inductance, ...
High Frequency LLC requires a smaller resonant inductance which is usually implemented by transformer leakage inductance. However, this small resonant inductance is difficult to deal with a wide input voltage range. This paper proposes a new method to implement a larger resonant inductance by using a magnetic shunt integrated into planar transforme...
