E²Watt®

Forced ZVS wireless power transfer

Best for 30W - 10kW

E²Watt® is Eggtronic’s proprietary inductive wireless charging technology.

While offering backward compatibility with Qi, E²Watt offers significantly higher power ratings (up to 300W today with the next generation being able to work at >10kW), improved efficiency (up to 95% from DC input on TX side to DC output on RX side) and operation over extended distances.

Because it can be supplied directly from the AC mains (90-264VAC input), it supports a reduced BOM and increased performance, removing the need for an external AC/DC adapter, ensuring efficiency higher than 91% (from AC input on TX side to DC output on RX side).

E²Watt also provides a proprietary data channel able to reduce latency and increase bandwidth, resulting in a data-over-power channel able to hit Gbps super-speed data transfer, which can be used for any consumer, industrial and automotive application where high speed wireless data are needed together with wireless power.

Key features

  • Compatible with Qi 1.3 wireless power transfer
  • High power (up to kW)
  • AC input or DC input
  • High efficiency (up to 96% with DC input, up to 91% with direct AC input)
  • High distance (depending on mechanical constraints)
  • Custom-optimized coils provided
  • Receiver can be provided with different output configurations: Fixed voltage, CC/CV battery charger, USB Power Delivery 3.1
  • Low-latency high-bandwidth data-over-power

Typical applications

Best suited for high wireless power transfer

Smartphones
Tablets
Laptops
TVs panels
Home appliances
Drones
AGV robots
Electric scooters
E-bikes
Electric cars

Available configurations

   E2Watt_graph

Controllers

EPIC2ACE01 controller
E2Watt

EPIC2ACE01

High-Power Wireless Transmitter Controller

  • Up to 10kW wireless power
  • Optionally back-compatible with Qi (in low-power applications)
  • I2C / SPI / UART / USB low-latency high-bandwidth data-over-power
  • QFN40
  • 6mm x 6mm
  • 40 pins
EPIC2ACE02 controller
E2Watt

EPIC2ACE02

High-Power Wireless Receiver Controller

  • Optionally back-compatible with Qi (in low-power applications)
  • I2C / SPI / UART / USB low-latency high-bandwidth data-over-power
  • Battery Charger (CC /CV), fixed voltage, USB Power Delivery 3.1 output
  • QFN40
  • 6mm x 6mm
  • 40 pins

Reference Designs

30W Wireless charger

ERD00690

Features
  • Direct AC input
  • 90% efficiency (from AC input to DC output)
  • Data over power

60W Wireless charger

ERD00700

Features
  • Direct AC input - Synchronous rectification
  • 91% efficiency (from AC input to DC output)
  • Data over power