A High-<i>Q</i> Resonant Inductive Link Transmit Driver With Adaptive-Predictive Phase-Continuous Tuning and Deviation Frequency Calibration for Enhanced FSK/PSK Modulation and Power Transfer

Kennedy, Henry; Bodnar, Rares; Lee, T.; Redman-White, W.

doi:10.1109/jssc.2020.2991516

Cited by 4 publications

(2 citation statements)

References 8 publications

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“…The inductive power transmission link is extensively employed in IMDs for simultaneous power and data transmission due to its safety, reliability, simplicity, and suitable dimensions [11][12][13]. To improve power transmission efficiency, the Class-E power amplifier (PA) is commonly utilized to drive the inductive power transmission link as it can achieve high transmission efficiencies.…”

Section: Introductionmentioning

confidence: 99%

High-Performance Wireless Power and Data Transmission System for Medical Implant Devices Using ASK Modulation

Zhu,

Tahir,

et al. 2024

Energies

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Wireless power and data transmission (WPDT) solutions for medical implants are highly desired. However, achieving a high-power transmission efficiency and data rate simultaneously over an inductive link remains a significant challenge. This paper presents an innovative WPDT circuit that incorporates additional MOSFETs with an inductor in a Class-E power amplifier (PA), achieving amplitude-shift keying (ASK) modulation to address this issue. Firstly, the efficiency of the inductive power transmission link and Class-E PA was analyzed, providing design insights. Then, leveraging the insights, the proposed circuit was designed in such a way that it could effectively switch between two load networks to maintain high transfer efficiency for ASK modulation. Based on the load networks, the relationship between introducing the inductor’s value and the data modulation index (MI) was derived to help achieve the desired high-power transmission efficiency. Additionally, the design and calculation of the proposed circuit are also presented. Finally, the proposed circuit was validated through simulations and experiments, demonstrating a power delivery to a load of 84.1 mW with a power transmission efficiency of 70.8% at a data rate and carrier frequency of 3 Mbps and 16 MHz, respectively. Furthermore, the bit error rate (BER) is less than 10−6 with an MI of 10%.

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Section: Introductionmentioning

confidence: 99%

High-Performance Wireless Power and Data Transmission System for Medical Implant Devices Using ASK Modulation

Zhu,

Tahir,

et al. 2024

Energies

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“…As a direct band gap semiconductor, GaN has lower thermal conductivity, critical electric field and electron mobility than the wide band gap semiconductor SiC. Therefore, this technology has many advantages, such as safety, contactless, flexible and so on [1,2].…”

Section: Introductionmentioning

confidence: 99%

Gallium Nitride Power Devices in Magnetically Coupled Resonant Wireless Power Transfer Systems

Lu²

2023

J. Phys.: Conf. Ser.

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The main function of power devices is to convert electrical energy through high-speed switching, such as AC/DC, high and low voltage conversion, etc. Therefore, the performance of the device directly affects the performance of the power electronic device, thereby further affecting the conversion efficiency of electrical energy. The arrival of the 5G era has greatly increased the demand for gallium nitride (GaN). The development of the wireless communication market has made GaN play a key role in many aspects of human activities. The main aim of this article is to research the application of GaN power devices in magnetically coupled resonant wireless power transfer (WPT) systems. This paper first introduces the related concepts of GaN power devices, magnetic coupling resonance and WPT, and analyzes the construction of magnetic coupling resonance WPT system in detail. Secondly, the energy transmission structure is analyzed, the system is designed and the system loss is calculated and analyzed. The system loss experiment shows that by using the output capacitor of the GaN device, the dead time is optimized, the conduction loss of the switch tube is reduced, the efficiency of the converter device is improved, and the practical application of the GaN device is provided.

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A 70%-power transmission efficiency, 3.39 Mbps power and data telemetry over a single 13.56 MHz inductive link for biomedical implants

Chen

Pan

Lin

et al. 2022

Sci. China Inf. Sci.

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A High-Q Resonant Inductive Link Transmit Driver With Adaptive-Predictive Phase-Continuous Tuning and Deviation Frequency Calibration for Enhanced FSK/PSK Modulation and Power Transfer

Cited by 4 publications

References 8 publications

High-Performance Wireless Power and Data Transmission System for Medical Implant Devices Using ASK Modulation

High-Performance Wireless Power and Data Transmission System for Medical Implant Devices Using ASK Modulation

Gallium Nitride Power Devices in Magnetically Coupled Resonant Wireless Power Transfer Systems

A 70%-power transmission efficiency, 3.39 Mbps power and data telemetry over a single 13.56 MHz inductive link for biomedical implants

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