Abstract

Near-field dual-band wireless power transfer (WPT) systems can be compatible with distinct operating bands. Several systems are available with different architectures, such as multi-coil module or repeater-based coil module. However, their efficiencies become smaller when the coupling among coils change. In this work a dual-band WPT system with efficiency-tracking circuits-boost converters is proposed to obtain higher efficiency under dynamic-coupling applications. The simulation results show that the efficiency can be increased by 5-25% at 6.78 MHz and 13.56 MHz when the receiver coils are deviated from the optimal positions.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call