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This paper is aimed to develop a voltage equalization circuit for lithium iron phosphate batteries cooperating with supercapacitors. In this proposed equalizer, a bi-directional dc-dc converter circuit is utilized to deliver the redundant energy to supercapacitors such that the unequal battery voltage problem can be solved, while the energy loss can be minimized simultaneously. The study begins with...
This paper proposes a contactless energy-transfer system (CETS) for lithium iron phosphate battery-charging circuits. In the study, the design flow of contactless transformers and compensated circuit are investigated through the analysis of their impedance-matching and resonant features, by which the appropriate inductive coils can be optimally determined such that power transmission efficiency can...
This paper is aimed to develop a Li-ion battery charger with the intelligent decisions based on OCV information of the battery. In this method, the OCV function can be formulated through the measurement of output voltage with respect to a certain SOC value. Then using the obtained dynamics of battery intrinsic, a fast charging method can be developed to reach speedy and full charge without entering...
A matching design for the cooperation of super-capacitor and Lithium-ion battery in electric wheel motors is proposed in this paper. This concept is originated with anticipation of grasping the power delivery through the control of switching time between the super-capacitor and lithium-ion battery, by which the excessive energy of lithium-ion battery can be dissipated to each cell such that the battery...
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