What is it about?
This paper presents application of class - E driver circuit for inductive wireless power transfer. In this respect, an objective circuit is considered for a non-conductive housing telemetry unit consuming a minimum of 5 mA from a 5.5 V-regulated supply having maximum target distance is 70 mm. For this purpose, link optimization theory is used for designing exact link to select parameters of the objective circuit. In this prospect, a single 12V (drain to source) capacity MOSFET is used in the proposed driver circuit design. Results obtained from simulation shows that the proposed driver circuit provides a 5.5 V DC regulated supply to a distant load. In addition to that, acceptability of wireless power transfer is analysed from the view of performance parametric analysis.
Featured Image
Photo by Alexey Demidov on Unsplash
Why is it important?
We explore the application of current-limiting inductance in a class-E driver circuit designed for inductive wireless power transfer, specifically targeting telemetry units with non-conductive housing. This is important in advancing wireless power systems for compact, low-current devices operating at regulated voltages and moderate distances—key challenges in implantable and remote sensing technologies. Two significant contributions of this work are: a) the design of an optimized link using single 12V MOSFET-based driver circuitry that effectively delivers a stable 5.5 V DC supply to a load at up to 70 mm distance, and b) a comprehensive parametric performance analysis that validates the acceptability and efficiency of wireless power transfer under practical constraints. These insights help bridge theoretical circuit design with real-world demands for reliable, efficient wireless energy delivery in sensitive applications.
Perspectives
I hope this article demonstrates how a focused circuit innovation—like incorporating current-limiting inductance in a class-E driver—can make a real difference in the reliability and usability of wireless power systems. While the topic might seem narrowly technical, it touches on broader trends in electronics miniaturization and wireless healthcare devices, where power management is absolutely critical. For me, this work represents the kind of foundational engineering that enables next-generation devices to operate safely and efficiently, without bulky wires or frequent battery changes. More than anything, I hope readers find this study both practically useful and a reminder that progress often happens through smart, incremental improvements.
Md Khurram Monir Rabby
Read the Original
This page is a summary of: Application of current limiting inductance effect on class - E driver circuit for inductive wireless power transfer, December 2016, Institute of Electrical & Electronics Engineers (IEEE),
DOI: 10.1109/wiecon-ece.2016.8009129.
You can read the full text:
Contributors
The following have contributed to this page
