Wireless Power Transfer Using Inductive Coupling: A Low-Cost Approach for Short-Range Applications

Banti Yadav; Badal Kumar

doi:10.55878/SES2026-6-1-5

editorSES@esciencesspectrum.com

Spectrum of Emerging Sciences

ISSN: 2583-2603 | Indexed In: Google Scholar, Researchgate | Issues per year: Bi-annually

ISSN:2583-2603

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Wireless Power Transfer Using Inductive Coupling: A Low-Cost Approach for Short-Range Applications

Author(s): Banti Yadav, Badal Kumar

Email(s): bantiyadav102030@gmail.com, badalkrssm11@gmail.com

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Department of Electronics and Communication Engineering, IIMT College of Engineering, Gretaer Noida, UP, India.

Published In: Volume - 6, Issue - 1, Year - 2026

DOI: 10.55878/SES2026-6-1-5

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ABSTRACT:
This paper presents the design and implementation of a low-cost wireless power transfer (WPT) system using inductive coupling for short-range applications. The proposed system eliminates the need for physical wires by transferring electrical energy through a magnetic field induced between two coils. The system comprises a transmitter circuit with a 2N2222 transistor acting as a high-frequency switch, a 9V DC battery as the power source, insulated copper wire coils for transmission and reception, and an LED as the load. The transmitter coil generates an alternating magnetic field when supplied with high-frequency alternating current, which induces voltage in the receiver coil placed within proximity. The system successfully illuminated an LED wirelessly at distances up to 2–3 cm, demonstrating the practical feasibility of low-cost WPT. With a total component cost of approximately ₹175, this system is highly affordable for educational demonstrations and low-power applications such as wireless charging of small electronic devices, medical implants, and consumer electronics. The paper also discusses three main WPT technologies—inductive coupling, magnetic resonance, and radio frequency—along with their respective advantages and disadvantages.

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Cite this article:
Banti Yadav, Badal Kumar, Wireless Power Transfer Using Inductive Coupling: A Low-Cost Approach for Short-Range Applications, Spectrum of Emerging Sciences, 6 (1)1-6 10.55878/SES2026-6-1-5, DOI: https://doi.org/10.55878/SES2026-6-1-5

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