uBeam Reveals Secrets on How Wireless Power Is Possible

uBeam revealed November 7 how their wireless power technology can charge phones without wires.

The company's owner Meredith Perry claims that charging phones will be like Wi-Fi with uBeam's new technology, according to a report from BBC. However, the company has plans beyond wireless charging. They claim that with uBeam, devices will no longer need electrical outlets. 26-year-old Meredith as a university student in 2011 vowed to create an ultrasound beam that would send electric charges through the air. After that promise, her company raised $23 million from investors, which ultimately led to the birth of uBeam.

However, the company has been receiving heavy attacks from critics, saying their technology is flawed and they are just wasting investors' money and time. 

Philly Voice reported that uBeam's technology wireless transmitters can send inaudible and high-pitched frequencies to devices. A receiver can turn these vibrations into electricity, which is the basic premise in uBeam's technology. According to the company, it now has 6 patents issued and over 30 more filed. These are usually in the ultrasonic transducer, which receives and sends sound waves on a frequency ranging 45kHZ to 75kHz. Its output ranges from 145dB to 155dB. This means, without obstruction, one uBeam transmitter can charge four devices at once in a four-meter range.

Tech Crunch gave additional information about uBeam that people usually want to know. The technology can send a minimum of 1.5 watts of electricity to a smartphone. It can typically charge at rates similar to using a wire. One of uBeam's patented technologies is the ultrasonic phased array transmitter that has thousands of addressable and controllable elements. It has beam forming algorithms that can manipulate beams to multiple devices. It also has a receiver that can harvest acoustic powers from different angles.

But everything else out there is apps and social photo sharing stuff "Perry contends. "We're building something real. We're building something that's insanely difficult. So difficult people think that we're frauds." 

This information dispels criticism that the technology is inefficient and unsafe. These rumors came as critics assumed that uBeam will radiate sound by a lower frequency and higher decibel levels.