A Wireless Power and Data Transfer IC for Neural Prostheses Using a Single Inductive Link with Frequency-Splitting Characteristic

2021 ◽  
pp. 1-1
Author(s):  
Yechan Park ◽  
Seok-Tae Koh ◽  
Jeongeun Lee ◽  
Hongkyun Kim ◽  
Jaesuk Choi ◽  
...  
Keyword(s):  
Data Transfer ◽  
Neural Prostheses ◽  
Wireless Power ◽  
Inductive Link ◽  
Frequency Splitting

scholarly journals Wireless Power and Data Transfer via a Common Inductive Link Using Frequency Division Multiplexing

2015 ◽  
Vol 62 (12) ◽  
pp. 7810-7820 ◽  
Author(s):  
Jiande Wu ◽  
Chongwen Zhao ◽  
Zhengyu Lin ◽  
Jin Du ◽  
Yihua Hu ◽  
...  
Keyword(s):  
Data Transfer ◽  
Frequency Division Multiplexing ◽  
Frequency Division ◽  
Wireless Power ◽  
Inductive Link

scholarly journals Wireless power and data transfer through carbon composite using a common inductive link

2020 ◽  
Vol 11 (3) ◽  
pp. 1441
Author(s):  
Tuan Anh Vu ◽  
Chi Van Pham ◽  
William Tran ◽  
Anh-Vu Pham ◽  
Christopher S. Gardner
Keyword(s):  
Data Transfer ◽  
Data Communication ◽  
Carbon Composite ◽  
Power Transfer ◽  
Wireless Power ◽  
Inductive Link ◽  
Ac Power ◽  
Half Duplex ◽  
Power Transfer Efficiency ◽  
Helical Coils

This paper presents the design and development of an integrated wireless power transfer and data communication system. The power and data transfer share a common inductive link that consists of two identical Helical coils placed on both sides of a carbon composite barrier. Power and data are transferred simultaneously through a 5-mm thick carbon composite barrier without any physical penetration or contact. Power transfer measurements show that the system can deliver 9.7 AC power to the receiving coil with a power transfer efficiency of 36% through the carbon composite barrier. The system achieves a bidirectional half-duplex data communication with the data rate of unit 1.2kbit/s.

scholarly journals A Power and Data Decoupled Transmission Method for Wireless Power Transfer Systems via a Shared Inductive Link

Energies ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 2161 ◽  
Author(s):  
Xiaofei Li ◽  
Haichao Wang ◽  
Xin Dai
Keyword(s):  
Data Transmission ◽  
Output Voltage ◽  
Data Transfer ◽  
Control Method ◽  
Signal To Noise Ratio ◽  
Wireless Power Transfer ◽  
Power Transfer ◽  
Wireless Power ◽  
Transmission Method ◽  
Inductive Link

Wireless Power Transfer (WPT) technology is gaining global popularity. However, in some applications, data transmission is also required to monitor the load states. This paper presents an alternative wireless power and data transmission method via the shared inductive link. With the method, the system presents three characteristics: (1) controllability and stability of the output voltage; (2) miniaturization in volume of the system; (3) decoupled transmission of power and data. The output voltage control is realized by a non-inductive hysteresis control method. In particular, data is transferred when the power transmission is blocked (i.e., the hysteresis switch is off). The interference between power and data transmission is very small. The signal to noise ratio (SNR) performance which is relevant to the interference from power transfer to data transfer and data transfer capacity, is studied and optimized. Both simulation and experimental results have verified the proposed method.

scholarly journals Inductive link for power and data transfer to a medical implant

2017 ◽  
Vol 4 (2) ◽  
pp. 98-112 ◽  
Author(s):  
Giuseppina Monti ◽  
Maria Valeria De Paolis ◽  
Laura Corchia ◽  
Mauro Mongiardo ◽  
Luciano Tarricone
Keyword(s):  
Medical Device ◽  
Direct Contact ◽  
Pulse Generator ◽  
Data Transfer ◽  
Human Tissues ◽  
Wireless Power ◽  
Data Link ◽  
External Resonator ◽  
Inductive Link ◽  
Safety Regulations

This paper presents a resonant inductive link for power and data transfer to a pulse generator implanted in the chest. The proposed link consists of two planar resonators and has been optimized for operating in the MedRadio band centered at 403 MHz. The wireless power/data link occurs between an external resonator operating in direct contact with the skin and a receiving resonator integrated in the silicone header of a pulse generator implanted in the chest. Numerical and experimental results are presented and discussed. From measurements performed by using minced pork to simulate the presence of human tissues, an efficiency of about 51% is demonstrated. The feasibility of using the proposed link for recharging the battery of the medical device in compliance with safety regulations is also verified and discussed.

scholarly journals Simulation of 2-Coil and 4-Coil Magnetic Resonance Wearable WPT Systems

Proceedings ◽  
2021 ◽  
Vol 68 (1) ◽  
pp. 13
Author(s):  
Yixuan Sun ◽  
Stephen Beeby
Keyword(s):  
Power Efficiency ◽  
Power Transmission ◽  
Rotation Angle ◽  
Wireless Power ◽  
Peak Efficiency ◽  
Frequency Splitting ◽  
At Resonance ◽  
Higher Power ◽  
The Impact ◽  
Proper Frequency

This paper presents the COMSOL simulations of magnetically coupled resonant wireless power transfer (WPT), using simplified coil models for embroidered planar two-coil and four-coil systems. The power transmission of both systems is studied and compared by varying the separation, rotation angle and misalignment distance at resonance (5 MHz). The frequency splitting occurs at short separations from both the two-coil and four-coil systems, resulting in lower power transmission. Therefore, the systems are driven from 4 MHz to 6 MHz to analyze the impact of frequency splitting at close separations. The results show that both systems had a peak efficiency over 90% after tuning to the proper frequency to overcome the frequency splitting phenomenon at close separations below 10 cm. The four-coil design achieved higher power efficiency at separations over 10 cm. The power efficiency of both systems decreased linearly when the axial misalignment was over 4 cm or the misalignment angle between receiver and transmitter was over 45 degrees.

Design of Conductive Coupler for Underwater Wireless Power and Data Transfer

2021 ◽  
Vol 69 (1) ◽  
pp. 1161-1175
Author(s):  
Masaya Tamura ◽  
Kousuke Murai ◽  
Marimo Matsumoto
Keyword(s):  
Data Transfer ◽  
Wireless Power
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