Design considerations Plug-in hybrid electric vehicles (PHEVs) and battery electric vehicles (BEVs) are two rapidly emerging technologies that use powerful motors as a source of power. In order to power these motors, a large battery pack consisting of hundreds of batteries (300-400V total) is installed in the vehicle. Due to the limited battery capacity, PHEVs and BEVs must be recharged periodically, which is usually done by connecting to the grid. The charging system for these vehicles consists of an AC/DC rectifier that generates a DC voltage from the AC line, and a DC/DC converter that generates the DC voltage required by the battery pack. In addition, advanced charging systems may use a PLC modem to communicate with the grid to regulate charging based on grid conditions. The battery pack must also be carefully monitored during operation and charging to maximize energy usage and extend battery life. High-performance analog components also provide the functionality and features of critical systems such as sensor feedback, isolation, chip power and communication transceivers. The bq7xPLxxx device family is designed for multi-cell battery packs. They handle voltages and currents in higher power applications such as power tools and electromigration. The more batteries that are connected in series in the battery pack, the greater the difference in charge state, impedance, and capacitance that affects the condition of the battery pack and the energy supply. The bq7xPLxxx device includes circuitry to return the battery to equilibrium. This extends the life of the battery pack and helps provide as much energy as possible for the application. Each bq7xPLxxx device protects the battery pack and system from overcharging, overdischarging, overtemperature and high voltage. 12V 100AH LiFePO4 Battery Pack Shenzhen Jiesai Electric Co.,Ltd , https://www.gootuenergy.com