Employing Load Coils for Multiple Loads of Resonant Wireless Power Transfer

2015 ◽  
Vol 30 (11) ◽  
pp. 6174-6181 ◽  
Author(s):  
Yiming Zhang ◽  
Ting Lu ◽  
Zhengming Zhao ◽  
Fanbo He ◽  
Kainan Chen ◽  
...  
Keyword(s):  
Wireless Power Transfer ◽  
Power Transfer ◽  
Wireless Power ◽  
Multiple Loads

Wireless Power Transfer to Multiple Loads Over Various Distances Using Relay Resonators

2015 ◽  
Vol 25 (5) ◽  
pp. 337-339 ◽  
Author(s):  
Yiming Zhang ◽  
Ting Lu ◽  
Zhengming Zhao ◽  
Kainan Chen ◽  
Fanbo He ◽  
...  
Keyword(s):  
Wireless Power Transfer ◽  
Power Transfer ◽  
Wireless Power ◽  
Multiple Loads

scholarly journals Efficient, Load Independent and Self-Regulated Wireless Power Transfer with Multiple Loads for Long Distance IoT Applications

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1035
Author(s):  
Najam ul Hassan ◽  
Woochan Lee ◽  
Byunghun Lee
Keyword(s):  
Power Distribution ◽  
Wireless Power Transfer ◽  
Total Power ◽  
Total Efficiency ◽  
Power Transfer ◽  
Wireless Power ◽  
Long Distance ◽  
Multiple Loads ◽  
Transfer Distance ◽  
Iot Devices

This paper proposes a wireless power transfer (WPT) system by placing repeater coils to transfer power to multiple loads for the internet of things (IoT) devices and sensors in smart grid applications. The proposed system intermediate resonators (repeaters) not only function as power relays to enhance the transfer distance but also supplies power to its load attached to them. Equal power distribution and load-independent characteristics were obtained without efficiency degradation when any one of the loads was changed during system operation. Identical high-quality factor coils were designed using Litz-wire to reduce the skin effect. The coil size was 15.5 cm × 15.5 cm and the four relays achieved total efficiency of 51.7%, delivering 2 W power and output voltage of 5 V to each load with a total power transfer distance of 62 cm.

Load-Independent Wireless Power Transfer System for Multiple Loads Over a Long Distance

2019 ◽  
Vol 34 (9) ◽  
pp. 9279-9288 ◽  
Author(s):  
Chenwen Cheng ◽  
Fei Lu ◽  
Zhe Zhou ◽  
Weiguo Li ◽  
Chong Zhu ◽  
...  
Keyword(s):  
Wireless Power Transfer ◽  
Transfer System ◽  
Power Transfer ◽  
Wireless Power ◽  
Long Distance ◽  
Multiple Loads ◽  
Wireless Power Transfer System

Selective Wireless Power Transfer to Multiple Loads Using Receivers of Different Resonant Frequencies

2015 ◽  
Vol 30 (11) ◽  
pp. 6001-6005 ◽  
Author(s):  
Yiming Zhang ◽  
Ting Lu ◽  
Zhengming Zhao ◽  
Fanbo He ◽  
Kainan Chen ◽  
...  
Keyword(s):  
Wireless Power Transfer ◽  
Power Transfer ◽  
Wireless Power ◽  
Resonant Frequencies ◽  
Multiple Loads
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