Reduction on radiation noise level for inductive power transfer systems with spread spectrum focusing on combined impedance of coils and capacitors

2016 ◽  
Author(s):  
Kent Inoue ◽  
Keisuke Kusaka ◽  
Jun-ichi Itoh
Keyword(s):  
Spread Spectrum ◽  
Noise Level ◽  
Power Transfer ◽  
Inductive Power Transfer ◽  
Radiation Noise ◽  
Inductive Power

scholarly journals Comparative Verification of Radiation Noise Reduction Effect Using Spread Spectrum for Inductive Power Transfer System

2019 ◽  
Vol 10 (2) ◽  
pp. 40
Author(s):  
Keisuke Kusaka ◽  
Kent Inoue ◽  
Jun-ichi Itoh
Keyword(s):  
Noise Reduction ◽  
Spread Spectrum ◽  
Compensation Method ◽  
Power Transfer ◽  
Series Compensation ◽  
Constant Frequency ◽  
Inductive Power Transfer ◽  
Reduction Methods ◽  
Radiation Noise ◽  
Inductive Power

This paper provides a comparative study on radiation noise reduction methods for inductive power transfer systems using spread spectrum. In the spread spectrum methods, the radiation noise is reduced by continuously changing an output frequency of the inverter according to pseudorandom numbers. The effects of the radiation noise reduction are evaluated with the inductive power transfer (IPT) system with series-parallel compensation and series-series compensation. The results show that the peak values of the radiation noise around the fundamental frequency are reduced by 7.8 and 8.1 dBμA in maximum with the series-series compensation method and the series-parallel compensation method, respectively in comparison with the constant frequency operation. From these results, the proposed methods are effective for both the series-series compensation and series-parallel compensation method. Moreover, the efficiency of the IPT system with spread spectrum method is evaluated. The maximum DC-to-DC efficiency with the spread spectrum is 94.1% and 92.0% with the series-series compensation and the series-parallel compensation, respectively.

Thermal Evaluation of an Inductive Power Transfer Pad for Charging Electric Vehicles

2021 ◽  
pp. 1-1
Author(s):  
Seho Kim ◽  
Maedeh Amirapour ◽  
Tharindu Dharmakeerthi ◽  
Vahid Zahiri Barsari ◽  
Grant A. Covic ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Power Transfer ◽  
Inductive Power Transfer ◽  
Inductive Power
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