论文信息 - Spread Spectrum Technology to Reduce the EMI from the Constant Voltage Source Type Wireless Power Transfer System

Spread Spectrum Technology to Reduce the EMI from the Constant Voltage Source Type Wireless Power Transfer System

The electromagnetic interference (EMI) from the coil system for the wireless power transfer (WPT) with the voltage source and series LC resonance type can be reduced by 20dB at the most by using the spread spectrum technology when operating frequency 20 kHz, peak deviation 1%, and modulation frequency 156.25Hz.

[1] M. Soljačić,et al. Wireless Power Transfer via Strongly Coupled Magnetic Resonances , 2007, Science.

[2] Joungho Kim,et al. Spread spectrum clock Generator with delay cell array to reduce electromagnetic interference , 2005, IEEE Transactions on Electromagnetic Compatibility.