Design of a side-shielded wireless power transfer coil to achieve insensitivity against the human body effect

2016 ◽  
Vol 58 (5) ◽  
pp. 1169-1173 ◽  
Author(s):  
Juneseok Lee ◽  
Keum-Su Song ◽  
Jaehoon Choi
Keyword(s):  
Human Body ◽  
Wireless Power Transfer ◽  
Power Transfer ◽  
Wireless Power ◽  
Body Effect

scholarly journals A Study of Wearable Wireless Power Transfer Systems on the Human Body

2020 ◽  
pp. 1-1
Author(s):  
Juan Barreto ◽  
Gianfranco Perez ◽  
Abdul-Sattar Kaddour ◽  
Stavros V. Georgakopoulos
Keyword(s):  
Human Body ◽  
Wireless Power Transfer ◽  
Power Transfer ◽  
Wireless Power

EFFECT OF NUMBER OF TURNS AND MEDIUM BETWEEN COILS ON THE WIRELESS POWER TRANSFER EFFICIENCY OF AIMD’S

2019 ◽  
Vol 31 (02) ◽  
pp. 1950016
Author(s):  
B. P. Patil ◽  
Deepali Newaskar ◽  
Kunal Sharma ◽  
Tarun Baghmar ◽  
Mahesh Ku. Rajput
Keyword(s):  
Human Body ◽  
Wireless Power Transfer ◽  
Secondary Coil ◽  
Receiver Coil ◽  
Power Transfer ◽  
Wireless Power ◽  
Cardiac Pacemakers ◽  
Implantable Medical Devices ◽  
Body Tissues ◽  
Research Experiment

Active implantable medical devices (AIMDs) like implantable cardiac pacemakers play very important role in extending lives of patients with some cardiovascular diseases. The life of implantable device depends on life of battery. If this device can be charged from outside with power transfer device, then the cost of surgical procedures for patient can be saved. One must ensure, while transferring this power there should not be any abnormal effect on human body tissues. Wireless recharging of such devices through magnetic resonant coupling is of concern and hence the topic of more research to have uninterrupted supply from battery. The technique of wireless power transfer, primary or transmitting coil is assumed to be on body and receiver coil is assumed to be inside the human body. Several critical aspects need to be studied while designing coil for wireless power transfer (WPT). One of which is choice of operational frequency. In this research experiment, designed circuit is tested for checking power transfer was studied. Effect of the distance between primary and secondary coil affects the efficiency of power transfer. Authors also tied to test this for using different medium like air, placing 80 GSM paper and cloth. It is found that the medium between the primary and secondary affects the transfer of power. Careful thought needs to be given while designing power transfer system.

Effects of Wireless Power Transfer on Capacitive Coupling Human Body Communication

2015 ◽  
Vol 20 (3) ◽  
pp. 1440-1447 ◽  
Author(s):  
Rumei Zhang ◽  
Hao Liu ◽  
Qi Shao ◽  
Guiyang Li ◽  
Xuelin Fang ◽  
...  
Keyword(s):  
Human Body ◽  
Wireless Power Transfer ◽  
Capacitive Coupling ◽  
Power Transfer ◽  
Wireless Power ◽  
Human Body Communication

scholarly journals Wireless Power Transfer Through Inductive Coupling For Aimds

2019 ◽  
Vol 8 (11) ◽  
pp. 138-141
Keyword(s):  
Human Body ◽  
Wireless Power Transfer ◽  
The Body ◽  
Battery Life ◽  
Receiver Coil ◽  
Implantable Cardioverter Defibrillators ◽  
Power Transfer ◽  
Wireless Power ◽  
Cardiac Pacemakers ◽  
Resonance Coupling

For the patients with some cardiovascular diseases, implantable devices like implantable cardiac pacemakers and implantable cardioverter defibrillators play a very important role. The life of implantable device is limited by the life of battery and the size of implanted device is dependent on size of battery. More life of battery demands larger battery size. Since these devices are implanted inside the human body, they must be small in size as well as of long battery life. Wireless re-charging of such devices can only be the solution to reduce the size and increase life of AIMDs. Wireless recharging by magnetic resonance coupling in less time is expected and hence this topic is considered for more research to have uninterrupted power supply from battery. Selection of operating frequency for transfer of power wirelessly is of great concern as it requires attention towards certain guidelines as basic restrictions provided by International Commission on non-ionizing Radiation Protection (ICNIRP). With lower frequencies used for power transfer, the efficiency would be less whereas with higher frequencies efficiency would be higher but with the use of higher frequencies for power transfer certain biological issues needs attention like tissue heating. In the technique of wireless power transfer, the transmitting coil is assumed to be outside the body and receiver coil is considered to be inside the human body above the pacemaker shell. The efficiency of power transfer is affected by frequency for power transfer and distance between the two coils.

Effects of the Human Body on Wearable Wireless Power Transfer Systems

2021 ◽  
Vol 35 (11) ◽  
pp. 1454-1455
Author(s):  
Gianfranco Perez-Greco ◽  
Juan Barreto ◽  
Abdul-Sattar Kaddour ◽  
Stavros Georgakopoulos
Keyword(s):  
Human Body ◽  
Material Properties ◽  
Wireless Power Transfer ◽  
Power Transfer ◽  
Wireless Power ◽  
Strongly Coupled ◽  
Power Transfer Efficiency ◽  
Different Shapes ◽  
System Operating ◽  
Different Parts

In this paper, the effects of different parts of the human body on a wearable Wireless Power Transfer (WPT) system are examined. A Strongly Coupled Magnetic Resonators (SCMR) WPT system operating in the ISM band 40.68 MHz is used in this study. The results show that when the WPT system is placed directly on the human body its Power Transfer Efficiency (PTE) is reduced by 13% on average in both simulations and measurements. These losses are attributed to the material properties of the human body. Also, different parts of the human body cause different drops in PTE due to their different shapes and geometries.

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