Energous – WattUp Power-Harvesting

The WattUp Power-Harvesting Developer Kit

This energy harvesting kit developer combines e-peas’ power management IC technology with Energous’ radio frequency (RF) solution to support at-a-distance wireless charging applications for smart buildings, industrial IoT sensors, retail electronic displays and more.

The WattUp Power-Harvesting transmitter incorporates the DA14682, DA4100, EN3921 and EN3913M devices. The DA4100 is a highly integrated system-on-chip (SoC) Wireless Power Transfer (WPT) transmitter IC, the EN3913M is a highly efficient GaN power amplifier (PA) controlled by the EN3921, while the DA14682 is a Bluetooth low energy 5.0 SoC with enhanced security and integrated FLASH memory. A lower power option is available with the DA3210 CMOS power amplifier.

On the receiver side, there are 3 input paths to choose from based on use case with either discrete diode or DA2210 RF-to-DC implementations which connect to the AEM30940 ambient energy manager chip and the DA14531, a size-optimized, ultra-low power Bluetooth low energy system-on-chip ideal for IoT devices.

Applications

IoT Sensors
Building Security
Occupancy Sensors/Management
Industrial Automation
Asset Tracking
Electronic Shelf Labels

Wireless charging transmitter supporting groundbreaking at-a-distance charging

Small size using optimized WattUp technology
1W or 5.5W of conducted power using a single WattUp PA
Charging Zone of +5 meters
Optimized antenna for performance design fitted to product mechanical requirements

Simple Implementation

Flexible designs that can fit into multiple transmitter and receiver designs
Universal transmitter supports variety of receiver devices charging at the same time “one to many”
Single PA/Antenna non-beamforming

User Friendly Experience

Over-the-air distance charging interoperability

Scalable Architecture

Multiple devices can charge simultaneously
Multiple Tx topology to increase area coverage

Developer Kit

Advantages

E-Peas AEM30940 Harvesting PMIC with Supercap or rechargeable Lithium battery support
Low Voltage Operation from 50mV to 5V
Cold Start from 380mV input voltage
DA14531-based BLE sensor hub with example sensors (Ambient light and Temperature/humidity)
Optional E-ink ultra-low-power Display
On-board or external BLE antenna
External Harvesting antenna
USB micro and JTAG Debug ports