Design and Control of A High Power Density Three-Phase Flying Capacitor Multilevel Power Factor Correction Rectifier

2021 ◽  
Author(s):  
Yong-Long Syu ◽  
Zitao Liao ◽  
Ni-Ting Fu ◽  
Yu-Chen Liu ◽  
Huang-Jen Chiu ◽  
...  
Keyword(s):  
Power Density ◽  
Power Factor ◽  
High Power ◽  
Power Factor Correction ◽  
High Power Density ◽  
Three Phase ◽  
And Control

scholarly journals Modified Power Factor Correction (PFC) Control and Printed Circuit Board (PCB) Design for High-Efficiency and High-Power Density On-Board Charger

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 605
Author(s):  
Jaeil Baek ◽  
Moo-Hyun Park ◽  
Taewoo Kim ◽  
Han-Shin Youn
Keyword(s):  
Power Density ◽  
Power Factor ◽  
High Power ◽  
Printed Circuit Board ◽  
High Efficiency ◽  
Power Factor Correction ◽  
Circuit Board ◽  
High Power Density ◽  
Printed Circuit ◽  
Pcb Design

This paper presents a modified power factor correction (PFC) ON/OFF control and three-dimensional (3D) printed circuit board (PCB) design for a high-efficiency and high-power density onboard charger (OBC). By alternately operating one of two boost modules of the PFC stage at a 50% or less load condition, the proposed PFC control can reduce the load-independent power loss of the PFC stage, such as core loss and capacitor charging loss of switches. It enables OBCs to have high efficiency across a wide output power range and better thermal performance. The 3D-PCB design decouples a trade-off relationship of the PCB trace design and heat spreader design, increasing the power density of OBCs. A 3.3 kW prototype composed of an interleaved totem-pole bridgeless boost PFC converter and full-bridge (FB) LLC converter has been built and tested to verify the proposed PFC control and 3D-PCB effectiveness design. The prototype has 95.7% full power efficiency (98.2% PFC stage efficiency) and 52 W/in3 power density.

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