Smart Water Purifier System

This system provides a single MCU-based solution. UV lamp-based water filtering kills germs and makes the water suitable for drinking. A pump-based application can be suitable for reverse osmosis (RO) filtering, the same MCU provides better control of the pump. The system can add intelligence and self-monitoring by using Bluetooth^® Low Energy (LE) and/or Wi-Fi communication which can alert the need for and request the replacement of filters and cartridges when required.

System Benefits​:

• Flyback SMPS with high efficiency, low cost and increased reliability.
• Smartness and intelligence can be added using the ultra-low power Wi-Fi + Bluetooth LE module.
• The load switch saves AC/DC and other failures by controlling the peak current flow and fault indication to the MCU.
• On-board UV lamp ballast reduces the BOM count.
• Matrix switching reduces the need for GPIOs for switch expansions.