The wireless charging technology has once again made new breakthroughs. The new technology introduced by Energous is different from the general magnetic resonance technology, which transmits radio waves to the device to be charged, and claims to allow the device to move and charge within 4.7 meters.
According to the ExtremeTech website, Energous wireless charging technology can transmit 10 watts of power signals within 4.7 meters, and the technology has the ability to track the location of the device to be charged at any time. Energous is expected to be in the US in January 2015. At the Consumer Electronics Show (CES), we are working with vendors to launch new products.
The common technology for wireless charging is magnetic resonance technology. For example, Rezence, introduced by MIT derivative company WiTricity, uses the resonance principle of the same frequency of the charging base and the device to be charged, and transmits energy efficiently through the air.
However, according to MIT Technology Review, the technology used by Energous is based on a small array of antennas and transmits the radio waves to Bluetooth-identified devices.
Although the company did not disclose more details, ExtremeTech speculated that some kind of beamforming technology should be used to transmit electromagnetic radiation beams to the device.
Energous' transmitter EnergyRouter supports simultaneous charging of two groups of devices and can track devices moving within range, with an effective range of 4.7 meters and an efficiency of 20%.
It is assumed that when charging with Energous technology, the device to be charged must be installed with an antenna cover, which will be pre-emptive with EnergyRouters at the 2015 CES show. Energous has also planned to embed charging technology in the device in the future, and now it is the first to introduce receiver and transmitter chips.
Energous is one of the new companies that do not currently use magnetic resonance technology. Others such as WiTricity's Rezence wireless charging technology for magnetic resonance have been supported by major manufacturers such as Intel and Qualcomm. However, due to the limitations of physical conditions, magnetic resonance technology is relatively hindering its potential to play the role of wireless technology. It is more feasible to change the beamforming technology. It is easy to achieve wireless charging of most devices in a certain space. ? effect.
In the end, whether Energous or WiTricity's Rezence becomes the mainstream wireless charging technology for mobile phones, it is foreseeable that consumers can charge mobile devices anytime and anywhere, and wireless charging is also expected to provide power sources for smart homes or large sensor networks. .
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