One feature that is seen on a majority of smartphones these days is reverse wireless charging. The reverse wireless charging module helps charge your TWS earphones and smartwatches from your phone battery on the go. Provided they support the feature. This feature is about to get upgraded thanks to NFC.
NFC or (Near Field Communication) is a wireless technology that can be used to communicate with devices around. According to latest reports, NFC could help charge your accessories wirelessly NFC Forum has released a new standard, the Wireless Charging Specification (WLC). The WLC could power devices like smartphones and chargers at a rate of 1 Watt of power.WLC aims to standardise the reverse wireless charging technology being developed by different OEMs. As of now, the reverse wireless charging technology is proprietary and varies from company to company.
As per a post from the NFC Forum website, this new technology has been approved. It will allow NFC-enabled devices to charge other “battery-powered consumer and IoT devices”. The WLC technology was published in 2019 as a Canadian Specification and after thorough testing is now ready for commercial use. The statement reveals that there are currently 36 billion IoT devices in use and a majority of these can be wireless equipped with WLC. There is no concrete roadmap for the rollout o WLC at the moment.
“NFC wireless charging is truly transformative because it changes the way we design and interact with small, battery-powered devices as the elimination of plugs and cords enables the creation of smaller, hermetically-sealed devices’, says Koichi Tagawa, chair, NFC Forum.
WLC technology enables NFC devices with single antennas to simultaneously draw power to the battery and communicate with other devices. This method uses 13.56 MHz base frequency and uses NFC link for functioning. For a constant carrier signal, NFC allows power transfer to an NFC tag for hand-shake. Thus devices are charged at 1W power.
In the upcoming years, we might be able to see NFC being used in smartphones to charger other devices. In this manner, other devices will be able to reverse wireless charge” gadgets including but not limited to smartwatches, TWS earbuds and charging cases.
According to rumours, Apple is planning to implement reverse wireless charging on upcoming iPhone 12. This new technology could help Apple achieve this easier. Apple, Sony and Google are officially the NFC Forum sponsors while Samsung is a principal member. The power of 1 Watt may be insufficient to be of any practical use, but it could pave the way to charging devices in a true-wireless fashion.
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