1.7 kW 6.78 MHz Wireless Power Transfer with Air-Core Coils at 95.7% DC-DC Efficiency
Lei Gu, Juan Rivas-Davila
Abstract
This paper describes the design and implementation of a 1.7 kW wireless power transfer system that operates at 6.78 MHz and uses low-cost air-core coils. The demonstration achieves a dc-dc efficiency of 95.7% at 1.7 kW and maintains above 93% efficiency between 100 W and 1.7 kW.
Topics & Concepts
Wireless power transferElectrical engineeringPower (physics)Core (optical fiber)WirelessMaximum power transfer theoremElectronic engineeringComputer scienceMaterials scienceEngineeringElectromagnetic coilPhysicsTelecommunicationsQuantum mechanicsWireless Power Transfer SystemsEnergy Harvesting in Wireless NetworksInnovative Energy Harvesting Technologies