Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Node Analysis for AC Circuits

Node Analysis for AC Circuits

Consider an angioplasty system featuring a catheter equipped with a turbine, a critical tool for removing plaque deposits from coronary arteries. This intricate medical device operates using a circuit model reminiscent of a dual-node RLC circuit powered by a current-controlled voltage source.
To unravel the complexities of this system, nodal analysis is employed, a powerful technique founded on Kirchhoff's current law (KCL), which remains valid for phasors. AC circuits can effectively be...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

A scaling limit theorem for controlled branching processes with a size-divisible term.

Revista de la Real Academia de Ciencias Exactas, Fisicas y Naturales. Serie A, Matematicas·2026

Same author

AMS-HD: Hyperdimensional Computing for Real-Time and Energy-Efficient Acute Mountain Sickness Detection.

IEEE transactions on bio-medical engineering·2026

Same author

Adoption and Practice Variability of Prostate Stereotactic Body Radiotherapy (SBRT) in Latin America: The Role of Continuous Education in Advancing Quality and Standardization.

Cureus·2026

Same author

A 23-µJ-per-frame All-on-Chip TinyML U-Net Processor for Real-Time Autonomous Image Segmentation in Miniaturized Ultrasound Devices.

IEEE transactions on biomedical circuits and systems·2026

Same author

A Direct Current-to-Digital Converter IC for Luminescence-Based Detection Toward an Energy Efficient Transcutaneous Carbon Dioxide Sensor Wearable.

IEEE open journal of the Solid-State Circuits Society·2026

Same author

Towards accurate transcutaneous CO<sub>2</sub> sensing: A behavioral model using time-correlated single photon counting.

Biosensors & bioelectronics·2026

Search research articles

Related Experiment Video

Updated: Jun 25, 2026

Autonomous and Rechargeable Microneurostimulator Endoscopically Implantable into the Submucosa

Autonomous and Rechargeable Microneurostimulator Endoscopically Implantable into the Submucosa

Published on: September 27, 2018

A Design Review for Biomedical Wireless Power Transfer Systems with a Three-Coil Inductive Link through a Case Study

Amin Hazrati Marangalou¹, Miguel Gonzalez¹, Nathaniel Reppucci¹

¹Department of Electrical and Computer Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USA.

Electronics

|January 22, 2025

Summary

This study presents a three-coil inductive link for efficient biomedical wireless power transfer in neonatal intensive care units. The Class-E power amplifier design achieves up to 75% efficiency for powering wearable devices.

Keywords:

class-E power amplifier energy harvesting inductive coupling power transfer mattress neonatal intensive care power delivered to load power transfer efficiency wearable biomedical devices wireless power transfer

More Related Videos

Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver

Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver

Published on: August 27, 2021

Implantation and Control of Wireless, Battery-free Systems for Peripheral Nerve Interfacing

Implantation and Control of Wireless, Battery-free Systems for Peripheral Nerve Interfacing

Published on: October 20, 2021

Related Experiment Videos

Last Updated: Jun 25, 2026

Autonomous and Rechargeable Microneurostimulator Endoscopically Implantable into the Submucosa

Autonomous and Rechargeable Microneurostimulator Endoscopically Implantable into the Submucosa

Published on: September 27, 2018

Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver

Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver

Published on: August 27, 2021

Implantation and Control of Wireless, Battery-free Systems for Peripheral Nerve Interfacing

Implantation and Control of Wireless, Battery-free Systems for Peripheral Nerve Interfacing

Published on: October 20, 2021

Area of Science:

Biomedical Engineering
Electrical Engineering
Power Electronics

Background:

Biomedical wireless power transfer (WPT) systems are crucial for powering implantable and wearable devices, especially in critical care settings.
Traditional WPT systems face challenges with efficiency, coil configuration, and load variations.
Neonatal intensive care units (NICUs) require safe and reliable WPT solutions for monitoring and therapeutic devices.

Purpose of the Study:

To outline a design approach for a three-coil inductive link for biomedical WPT systems.
To investigate the suitability of Class-E power amplifiers for efficient WPT in NICU applications.
To analyze the performance of WPT systems with varying distances and load conditions.

Main Methods:

Literature review on power amplifier classes and inductive link concepts.
Theoretical analysis and simulation of two-coil and multi-coil inductive links.
Experimental validation using lab equipment and a three-coil link with a Class-E amplifier.
Case study simulating a NICU application with a wearable device.

Main Results:

Class-E amplifiers offer enhanced efficiency and simpler implementation for biomedical WPT.
A three-coil inductive link was designed and tested for powering a wearable device at distances of 4-12 cm.
Power transfer efficiency ranged from 75% to 25%, with power delivery from 340 mW to 25 mW for a 500 Ω load.

Conclusions:

The proposed three-coil inductive link with a Class-E amplifier is a viable solution for biomedical WPT in NICU applications.
The system demonstrates acceptable efficiency and power delivery for powering wearable devices on infants.
Further research can optimize coil design and amplifier efficiency for improved WPT performance.