Energy harvesting smart building sensors

To monitor and control smart buildings and enable the optimal use of resources, designers are incorporating an increasing number of remote wireless environmental sensors in both residential and non-residential buildings. For retrofitted buildings, it is easier to do this using plug and forget IoT sensors, where harvested energy is used to recharge embedded battery cells. These sensors can cover everything from temperature, air quality and humidity to light and motion.

Block diagram

Products

Design considerations

Optimize power consumption to increase the effectiveness of energy harvesting. This can be done by carefully selecting components with low standby current, optimizing transmission intervals, and implementing sleep modes - Nexperia can help customers make the right calculation
Cost is a key concern, so standard SOT23 / SOT323 package options can be preferred to smaller, more efficient SMD package

Adaptive energy harvesting PMIC enables environmentally friendly autonomous, connected devices

Ambient energy harvesting has often been proposed for recharging batteries in remote internet-of-things devices but hasn’t yet taken off. Nexperia's new dedicated PMIC is set to radically improve the viability of energy harvesting with significant benefits for the environment.ve energy harvesting PMIC enables environmentally friendly autonomous, connected devices