Faster Charging Phones

Faster Charging Phones

When a company has a wireless power challenge that seems insurmountable, they call on NuCurrent. When we bring that dream to life we call it a NuCurrent Power Play

 

Power Play with Devant Technologies

Company: Devant Technologies, Inc.

Industry Standard: Qi

Challenge: High heat issues with coils in phone sleeve were a roadblock to Apple’s MFi certification due to slow charging speeds.

NuCurrent Power Play: Designed custom flex PCB coil that was High Q, low ESR to exceed MFi standards by maintaining full speed charging.

Outcome: The new coil allowed the system to remain cool enough during the recharge cycle to maintain full charge current of 1A, per Apple’s MFi requirements.

Devant Technologies, Inc. is an exciting company focused on accessory products for the mobile industry. They offer a range of premium consumer wireless charging products and commercial charging portals, usually based on the Qi standard.

Devant was developing its iPhone® 5 sleeve charging product but was having issues with the coils they were using. In order to receive Apple’s coveted MFi certification, a phone must be able to receive at least 5W of power (5V and 1A) throughout the entire charge cycle. However, if a phone gets too hot during charging, the charge current drops down to 500mA and, therefore, is not certifiable. Devant’s coils were getting too hot because of the relatively low quality factor and coupling with standard Qi transmitters like the A1, A5, A6 and A11

NuCurrent worked with Devant to design a custom flex PCB coil that was High Q, low ESR and solved Devant’s heating issues. This allowed the system to remain cool enough during the recharge cycle to maintain full charge current of 1A, per Apple’s MFi requirements.

In regards to competitive advantage, Devant CEO Soren Nielsen attested:

“Working with NuCurrent has allowed us to develop premium products that outperform the competition and meet the stringent requirements of Apple, Verizon and our customers.”

Devant products are available at www.verizonwireless.com and www.devant.com.

See the next Power Play

“Working with NuCurrent has allowed us to develop premium products that outperform the competition and meet the stringent requirements of Apple, Verizon and our customers.”

Soren Nielsen CEO
Soren Nielsen CEO
Devant Technologies