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Voltage balancing between series-connected cells of rechargeable lithium-ion batteries is important for battery life, autonomy, and safety. Active balancing is the designated choice for applications that are sensitive to energy losses and maximized autonomy. First, a well-known next-to-next balancing technique is presented and its design and operating limitations are analyzed. Then, the paper focuses...
Dual Active Bridge converter is selected for the implementation of hybrid integration of isolated low power low voltage SMPS. Its architecture, as well as natural ZVS operation and limited amount of passive devices are convincing criteria for this type of application. Its design analysis shows outstanding ability to minimize passive elements while offering high efficiency levels, in the range of 90%...
Energy storage systems are critical elements in electric vehicle (EV) and hybrid electric vehicle (HEV) applications. In these systems, lithium-ion batteries are preferred for their outstanding characteristics and advantages: high power density, long life cycles and high efficiency. For high voltage applications, batteries cells are connected in series, raising the issue of voltage balancing among...
Voltage balancing between series-connected cells of rechargeable lithium-ion batteries is important for battery life, autonomy and security. Active balancing is the designated choice for applications that are sensitive to energy losses. A well-known next-to-next balancing technique is presented and its design and operating limitations are analyzed. This paper then presents a new technique for next-to-next...
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