Recently, the Internet of Things (IoT) has become increasingly popular and complex, and the issue of power supply for these devices has come to the fore.
Sony Semiconductor Solutions Corporation (SSS) has developed a module that converts electromagnetic noise into energy to power IoT devices.
This compact 7 x 7 mm device can provide continuous power even when electromagnetic radiation sources are not actively used.
The technology is based on the use of metal parts of an IoT device as an antenna. It intercepts electromagnetic waves in the range from a few hertz to 100 MHz.
A special rectifier circuit then convertsintercepted waves into electric current. This means that devices that consume power from a few microwatts to several milliwatts can receive the energy they need.
One of the key advantages of the new technologyis its continuous work. Even if devices that generate electromagnetic interference are turned off or not actively used, the module continues to charge because the noise is still present.
This distinguishes the new technology from alternative methods that rely on solar energy or temperature changes.