Charging device for daily use

Researchers and enthusiasts have been working on collecting energy during everyday human movements for many years. But until now, all kinetic chargers have remained large enough that people do not want to keep them with them all the time.

The concept developed by Ampy charging was first introduced in 2009. The authors – three university professors – have since significantly improved the device, making it smaller, more efficient and giving it a comfortable rectangular shape.

The Ampy is about half the size of an average smartphone, it is convenient to carry it with you constantly in your pocket or handbag, as well as fasten it on your arm or hip during intense sports. With a weight of 100 g and a thickness of 1.95 cm, the Ampy surface area is just over 7.5 cm2.





The kinetic charger generates energy using linear inductance technology. Inside the Ampy there is a magnet, which from concussions during the movement of a person moves back and forth, exciting an electric current in the turns of the inductive coil. Energy is stored by a lithium-ion battery. In the future, it can be used to charge electronics connected to the built-in USB port.

“We have developed a new proprietary inductor architecture that allows us to generate significant power with a small form factor,” said Tejas Shastry, CEO and co-founder of Ampy. Inductors on the market used for kinetic charging, usually the size of a roll of paper towels. We have found a way to make them much smaller.”

According to the creators of Ampy, to provide three hours of smartphone operation, about one hour of cycling, 30 minutes of jogging or 10,000 steps of walking are enough. Battery capacity Ampy 1000 mAh. It has enough energy to fully charge a low-power electronic device, such as a smartwatch and fitness tracker, or recharge your smartphone by about 50 to 75%.





Ampy’s kinetic charging works alongside a smartphone app that tracks daily energy generation, calculating how much the wearer has burned and how much their personal carbon footprint has reduced.

While most kinetic charging is aimed at tourists and travelers, Ampy’s set of additional accessories – a clip, strap and case – makes using the charger more convenient in normal everyday conditions, making it easier to mount on your belt, arm or leg.

On Kickstarter started crowdfunding company Ampy. The first copies of the device, which is scheduled for delivery in June next year, are offered to investors for $75.





Source: facepla.net