Battery Management System for Smart Wi-Fi Router Adapter for Rural Applications

In the modern era, internet access is essential for every human being for business, communication, entertainment, travelling, education, research and development, digital transactions, etc. This paper focuses on the continuous electricity supply requirement of Wi-Fi routers for internet access. The power backup is necessary for remote, rural, and urban internet access. Due to the failure of power, important transactions will fail. In this paper, a smart adapter for Wi-Fi routers with storage capacity has been discussed. A power backup system enhances the resilience and seamless integration of Wi-Fi Routers. A power backup system requires simple and less infrastructure for this setup. Li-Ion-based chargeable storage system receives the power from the supply when available. When the supply is unavailable, the Wi-Fi router gets the power from a Li-Ion-based battery. In case of a power outage, the Li-Ion battery may supply the Wi-Fi router with power for up to 5 hours. Battery management systems regulate and monitor the charging and discharging process, state of charge (SOC), residual operating time, capacity and power consumption for batteries. A bidirectional converter (BDC) interfaces the Li-Ion batteries between the supply and load. BDCs are used to supply flawless power in both directions. Power adapters receive power from the supply and step down at a suitable voltage (12V) for the Wi-Fi router. The power adapter handles power factor enhancement, protection issues, and temperature control management to improve the efficiency and reliability of the system.