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July 07, 2021 Wednesday 01:39:10 PM IST

Powering Wearables with Human Body

Science Innovations

A new technology developed by the National University of Singapore allows a single device such as a mobile phone placed in the pocket to wirelessly power other wearable devices on a user’s body, using the human body as a medium for power transmission. The novel system has an added advantage -- it can harvest unused energy from electronics in a typical home or office environment to power the wearables. Conventional wireless powering devices have a limitation regarding the distance that power can be transmitted. In the new system, the user needs to place the transmitter on a single power source, such as the smart watch on a user’s wrist, while multiple receivers (up to 10 wearable devices) can be placed anywhere on the person’s body. The process is termed body-coupled power transmission.

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