Design of a differential power oscillator for 433 MHz WPT using e-GaN HEMTs

Rezk, Theodora M.; Fahmy, Ghazal A.; Ibrahim, Sameh A.; Ragai, Hani

doi:10.1016/j.asej.2021.09.008

Cited by 8 publications

(2 citation statements)

References 11 publications

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“…In general, the NSM electrical analogy will lead to an equivalence between a system of DDEs and an electrical network, which is solved by means of appropriate circuit software. This last choice is not unique, but in this work we have selected the freeware LTspice [24], which adds value in terms of simplicity and usability, taking advantage of the powerful numerical codes embodied [25]. Additionally, LTspice presents a user-friendly environment, making the whole approach accessible for both researching and educational purposes in different areas.…”

Section: Introductionmentioning

confidence: 99%

A new Network Simulation Method for the characterization of delay differential equations

Garratón

García-Onsurbe

Soto-Meca

2023

Ain Shams Engineering Journal

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Section: Introductionmentioning

confidence: 99%

A new Network Simulation Method for the characterization of delay differential equations

Garratón

García-Onsurbe

Soto-Meca

2023

Ain Shams Engineering Journal

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“…Li et al [13] also demonstrated that the S-S topology possesses higher efficiency than the LCL-S topology. In addition, wide band semiconductor devices are used to improve the efficiency of WPT systems due to their excellent performance [14]. Qian et al verified that cascade GaN HEMTs have efficiency advantages for Si MOS over the wide load range in WPT system [15].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Analysis of S-S and LCCL-S Compensation for Wireless Power Transfer with a Wide Range Load Variation

Zhu

et al. 2022

Electronics

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Wireless power transmission (WPT) has great potential for charging electric vehicles. Constant voltage (CV) and constant current (CC) are two major types of battery charging modes. In this paper, we analyze the output characteristics of series–series (S-S) topology and double capacitances and inductances–series (LCCL-S) topology. Voltage gain variation is achieved in the LCCL-S compensation structure without additional components, and the system is still kept in resonant condition. A WPT experimental platform was also built and tested based on the theoretical analysis. When the load resistance is 300 Ω, a voltage gain of 0.7 or 2.22 is achieved for the LCCL-S with a compensating inductor of 100 μH or 33 μH, respectively. The experimental results fit the theoretical analysis. The CC/CV output characteristics and efficiencies of S-S and LCCL-S topologies in a wide load resistance range are also demonstrated. Moreover, zero voltage switch (ZVS) is also implemented in both two systems.

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