scholarly journals Optimal Design Analysis with Simulation and Experimental Performance Investigation of High-Power Density Telecom PFC Converters

2021 ◽  
Vol 11 (17) ◽  
pp. 7911
Author(s):  
Ahmed H. Okilly ◽  
Jeihoon Baek
Keyword(s):  
Optimal Design ◽  
Power Density ◽  
Power Factor ◽  
High Power ◽  
Power Efficiency ◽  
Printed Circuit Board ◽  
Current Control ◽  
Circuit Board ◽  
High Power Density ◽  
Control Circuits

The spread of the 5G technology in the telecom power applications increased the need to supply high power density with higher efficiency and higher power factor. Thus, in this paper, the performance of the different power factor correction ( PFC ) topologies implemented to work with high power density telecom power applications are investigated. Two topologies, namely the conventional and the bridge interleaved continues-current-conduction mode (CCM) PFC boost converters are designed. Selection methodology of the switching elements, the manufacturing of the boost inductors, and the optimal design for the voltage and current control circuits based on the proposed small signal stability modeling are presented. The printed circuit board (PCB) for the two different PFC topologies with a power rating of 2 kW were designed. PSIM simulation and the experiments are used to show the supply current total harmonic distortions (THD), voltage ripples, power efficiency, and the power factor for the different topologies with different loading conditions.

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.

scholarly journals Power Quality Improved Single Stage High Gain DC to DC Converter

2019 ◽  
pp. 308-313
Author(s):  
B Kunjithapatham ◽  
S. Gnanapragash
Keyword(s):  
Power Density ◽  
Power Factor ◽  
High Power ◽  
Feedback Linearization ◽  
High Efficiency ◽  
Low Cost ◽  
Power Conversion ◽  
High Power Density ◽  
Magnetizing Current ◽  
Single Power

This project presents a single-switch single power-conversion (S3PC) power factor correction (PFC) converter. The control algorithm derived from feedback linearization enables the S3PC converter to obtain good controllability. The proposed converter performs both PFC control and output power control through single power-conversion. The S3PC converter provides high efficiency and high power factor in excess of 0.994.. The proposed converter is able to offer low cost and high power density in step up application due to the following features: ZCS turn-on and ZVS turn-off of switch and ZCS turn-off of diodes regardless of voltage and load variation; low rated lossless snubber; reduced transformer volume compared to fly back based converters due to low magnetizing current. The proposed converter is able to offer high power density in step-up application because of its simple structure; low rated lossless snubber; reduced transformer volume compared to isolation based converters due to low magnetizing current. The proposed converter is capable to stabilize the output efficiency. Experimental results are provided to validate the proposed concept. The Simulation is done with the help of MATLAB Software using Simulink.

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