BMS

AFE for BMS Design 2 - Schematic Capture In part one of this series I looked at the inital concept of what an AFE is and a basic outline. In the previous post I presented the follow ideas for the design of the system : 9-15S LiPo battery (BQ76940) 100mA balance current 40A continuous duty current shunt, 50A peak PCB area less than 10x10cm panel LED SOC indication Ability to communicate to an external display to show detailed information Temperature sensing inside the battery pack Track the health of the pack Looking at this design, I selected to use a companion controller to work with the AFE for the inital design of this BMS....

Getting Started with AFE’s for BMS design. Analog Front End IC’s are becoming more popular from major IC manufacturers. These chips are designed to wrap all the analogue circuitry required for the design and operation of a BMS system up into a small package. Reducing design and programming time for the designer(s). This forfill a useful segment of the market where the application may want different design parameters to a normal BMS design, or even just for learning the operation modes of a BMS....

LiPro PCB LiPro Micro The LiPro Micro provides state of charge monitoring, passive balancing and safety discharge for lithium batteries. The key benefit to utilising the LiPro Micro on your battery pack is the high accuracy balancing of the internal cells, prolonging the life of the battery. The key features of the LiPro Micro: State of Charge display (Based on cell voltage curve) Cell balancing (to within 5mV total error) Safety discharge after 7 days idle If pack sits at a high voltage for a long period of time the unit will discharge the pack down to a safer voltage level to prevent cell damage Very low power usage....