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This paper highlights the importance of a BMS when operating with lithium-ion cells, especially within narrow SOA. A classification of BMSs is proposed based on four criteria. Based on the classification guidelines for optimal selection of a BMS for given application are also proposed. Using the guidelines an example BMS is selected and studied experimentally. The studied system operates within the...
High efficiency is among the most important targets in power electronic converters. A possible approach to obtain this goal is the usage of better switches. This paper is focused at the study and comparison of SiC and Si power MOSFETS in soft switching resonant DC/DC converter. The latter converter being a part of light battery charger used in ultra-light electric vehicles is realized and investigated...
The paper presents loss analysis and improvements of a battery charging system for light electrical vehicles. Possible solutions and design approaches are presented for reducing weight and improving efficiency of the system. The charger system (1500W) consists of rectifier with inrush current limiting, PFC and resonant DC/DC converter. Presented loss analyses leads to selection of proper switches...
The current paper presents an approach of selecting switches to reduce the switching losses in PFC converters. The presented concept speeds up the process of choosing the best transistor switch for PFC converters and therefore optimizes the efficiency by lowering the switching losses. The presented MATLAB Simulink model is used to determine the best transistor in a matter of efficiency. Experimental...
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