Wireless Charging 2.0 Has Arrived: First Wireless Charger That Works From Up To 3 Feet Away


Dialog has taken a noteworthy step towards the acceleration of wireless charging technology by starting mass production of the complete end-to-end WattUp wireless charging chipset, following the FCC approval of the Energous Mid Field WattUp transmitter reference design. The acceleration of the chipset mass production is hoped to fundamentally change the way consumers charge many of their portable electronics and Internet of Things (IoT) devices, including smartphones, wearables and hearables. The company is also working on high power gallium nitride (GaN) devices to increase the charging range.

FCC approval validates WattUp over-the-air wireless charging enabling Dialog to accelerate chip set mass production. The WattUp Mid Field transmitter can deliver power via radio frequency (RF) energy to WattUp-enabled electronic devices at a distance of up to three feet.

As the only technology that can do both contact-based and non-contact-based wireless charging, as well as charge multiple devices at once, WattUp is highly scalable and automatically charges devices, as needed, until they are topped off.

“While older charging technologies allow for only contact-based charging, Energous is the only company to achieve Wireless Charging 2.0 to-date, which is the ability to charge devices both at contact (including fast charging large battery devices such as smartphones and tablets), as well as power-at-a-distance”, according to the company.


Furthermore, similar to WiFi, the WattUp ecosystem ensures interoperability between receivers and transmitters, regardless of the manufacturer, making the entire ecosystem flexible and accessible for consumers and manufacturing partners.

Dialog has already successfully launched and sampled to customers the world’s first WattUp wireless power transmitter System-on-Chip (SoC), the DA4100, alongside the first WattUp RF-to-DC receiver ICs, the DA2200 and DA2210.

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These chips not only enable RF-based, Near Field (contact based) wireless charging but are also fundamental to the now certified Over-the-Air, Power-at-a-Distance Wireless Charging system.

“As a result, Dialog is accelerating the next phase in WattUp chip set qualification by adding the critical DA1210 Beamforming IC and the DA3210 Power Amplifier (PA) IC, needed to complete the chipset for the Power-at-a-Distance transmitter system”, the announcement stated.

The recent announcement by the FCC is the first time equipment certification has been awarded to any device that charges wirelessly at a distance, and operates under Part 18 of the FCC’s rules. The FCC’s Part 18 rules permit higher-power operations than are permitted under the Part 15 rules that have been used to approve other at a distance charging devices.

Commented Mark Tyndall, Senior Vice President Corporate Development & Strategy, Dialog Semiconductor: “It proves the era of wireless charging 2.0 has arrived as power-at-a-distance wireless charging becomes a reality with the delivery of a complete system chipset.”

Dialog will be sampling the DA1210 beamforming IC and DA3210 PA to lead customers this quarter and will provide complete system solutions for both Near Field and Power-at-a-Distance Wireless Charging by combining the full range of WattUp ICs with Dialog’s complementary SmartBond Bluetooth low energy, AC/DC and Power Management chips delivering optimized transmitter-to-receiver solutions.

Additionally, Dialog is working with Energous to commercialize WattUp high power Near Field systems through the use of high-efficiency GaN ICs which provide sufficient power to charge smartphones and other such consumer devices.

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