Active energy harvesting dev kit supports OTA IoT wireless charging

Active energy harvesting dev kit supports OTA IoT wireless charging
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Wireless charging technology company Energous Corporation, the developer of the WattUp RF-based at-a-distance wireless charging technology, has announced the availability of a 1W active energy harvesting developer kit.
By Rich Pell


The 1W Developer Kit can charge multiple devices simultaneously, enabling at-a-distance wireless charging for the growing Internet of Things (IoT) ecosystem. This technology, says the company, represents the lowest cost, smallest size solution for any known active energy harvesting ecosystem.

The 1W Active Harvesting Developer Kit is complementary metal–oxide semiconductor (CMOS)-based and features a smaller footprint than the company’s 5.5W kit announced earlier this year. The kit leverages the company’s WattUp RF-based wireless charging technology, delivering an over-the-air (OTA) solution that enables device manufacturers to implement wireless charging and active energy harvesting for smart buildings, industrial IoT sensors applications, retail electronic displays and other connected devices.

“As the IoT ecosystem continues to expand, enabling manufacturers to develop devices that can be wirelessly charged over-the-air will be critical to its success,” says Cesar Johnston, acting CEO of Energous Corporation. “Our 1W Active Energy Harvesting Developer Kit allows developers to harvest RF-based energy at power levels much higher than passive solutions and supports charging of multiple, simultaneous receiving devices over-the-air, making it an ideal fit for a wide range of IoT applications across industrial, healthcare, consumer, smart home, and more.”

Unlike passive solutions that harvest ambient energy from the surrounding environment, which typically offer extremely low amounts of power and can be unpredictable in terms of how much power is available, the company’s active energy harvesting solution includes a dedicated six-inch transmitter that emits 1W of conducted power in a specific area or direction via its RF-based wireless charging technology. This RF-based energy is harvested by Energous-enabled receiving devices, which can be combined with RF energy harvesting IC technology from e-peas. The Energous 1W active energy harvesting solution allows multiple devices to be simultaneously charged from a single transmitter.

The 1W Active Energy Harvesting Developer Kit includes one transmitter and one or more receiver units, is designed with e-peas’ power management IC technology and a broad array of Energous and partner IP including:

  • DA14682 SmartBond Bluetooth system-on-chip (SoC)
  • DA4100 Wireless Power Transmitter SoC
  • DA3210 Power Amplifier
  • A discrete rectifier and a DA2210 WPT rectifier
  • An e-peas AEM30940 harvesting PMIC
  • Supercap energy storage device with support for a rechargeable lithium battery
  • DA14531 BLE SoC
  • An ambient light sensor and a temperature/humidity sensor

For more, and to order the kit, see “WattUp 1W Active Energy Harvesting Developer Kit.”

Energous Corporation

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