Infrared light solution offers wireless charging alternative

March 11, 2015 // By Paul Buckley
An Israeli technology startup, Wi-Charge, is aiming to change the way people power their devices with the launch of Wi-Charge’s wireless charging technology that claims to deliver up to 10 W of power over 30 feet to multiple devices via an infrared light beam.

The technology, claims to offer smart home and mobile devices a source of unlimited and safe power, carries power by an infrared light beam from one point to another using Wi-Charge’s proprietary technology. At the receiving end, the light energy is transferred to usable electrical power using a high-efficiency photovoltaic cell. The transmitter locates devices having Wi-Charge receivers in the room and charges them as needed.

Wi-Charge technology differs from magnetic induction/resonance charging technologies in two ways.

1. Coverage area - magnetic induction is limited to very short range, which limits its usability to 'charging pad' applications. Wi-Charge technology enables wireless power transmission over a range of up to 10 meters (30 feet) within line of sight which enables an entire room to be covered by a single transmitter, and requires no action on part of the users.

2. EMI and RF radiation – Unlike other technologies, the Wi-Charge technology does not emit RF radiation and is completely EMI-free.

Wi-Charge is capable of powering multiple devices at any given time and can prioritize devices by their battery level or other customized scheme.

Currently, each client device needs a Wi-Charge receiver component. Initially the receiver will be an aftermarket accessory but over time the receivers will be pre-integrated into the mobile and smart devices.