> POWER
IoT Sensors Without Batteries –
Maintenance-Free With a Long Life Vishay Supports Reference Designs
Vishay is setting new standards in the world of IoT. This is achieved by photovoltaic energy harvesting, among other factors, in conjunction with a hybrid supercapacitor. Energy harvesting is the derivation of small amounts of energy from energy sources in the surroundings, such as light, heat, vibration, or other differential quantities. The main problems in this area are the most effective harvesting, efficient transformation to a usable voltage level, and lossless storage. Storage capacitors with minimum leakage current are key components here.
> JULY 2021
ENYCAP™ capacitor technology provides good properties to satisfy the demands in this area. It possesses small size, high energy density, low leakage current, and more than 90 % of the rated capacitance, even after 35,000 deep discharge cycles. With these types of energy sources from the surroundings, combined with the correct charging technology, sensors are completely self-sustaining and can be used for considerably longer than the 10 years intended for IoT applications.
34
•Vol - 03 / 07
