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New Challenges in Low-Power Electronics Design

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Energy Science and Technology".

Deadline for manuscript submissions: 31 October 2025 | Viewed by 1315

Special Issue Editor


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Guest Editor
Power Electronics Team, Compound Semiconductor Applications Catapult, Innovation Centre, Imperial Park, Celtic Way, Newport NP10 8BE, South Glamorgan, UK
Interests: power electronics

Special Issue Information

Dear Colleagues,

Our modern lifestyle relies heavily on various applications that demand low-power electronics. Devices such as smartphones, laptops, e-readers, smartwatches, drones, hearing aids, headphones, and portable medical equipment are just a few examples that require the appropriate energy sources and highly efficient power converters to charge their batteries while ensuring reliable power conditioning for optimal functionality.

This Special Issue focuses on the ongoing challenges in the design, power conditioning, integration, and control of suitable electronic circuits and their energy storage means. These include consumer electronics, portable devices, medical applications, energy harvesting, low-power renewable energy systems, battery chargers, and other applications up to 1000 W.

The key challenges to overcome include improving efficiency, optimizing standby operation, enabling fast charging, managing power and heat, achieving miniaturization, extending battery life, and reducing costs.

Suggested themes and article types for submissions:

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  1. Power converters for portable applications;
  2. battery and power management;
  3. energy harvesting;
  4. thermal management;
  5. GaN/SiC power devices.

We look forward to receiving your contributions.

Dr. Gerardo Calderon-Lopez
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • power conversion for low power
  • battery management
  • supercapacitors
  • high power efficiency
  • energy harvesting
  • miniaturization
  • fast charging
  • power management integrated circuits

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Published Papers (2 papers)

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Research

26 pages, 5483 KiB  
Article
Optimization with Time and Frequency Constraints Using Automatic Differentiation: Application to an Aircraft Electrical Power Channel
by Lucas Agobert, Laurent Gerbaud and Benoit Delinchant
Appl. Sci. 2025, 15(7), 3624; https://doi.org/10.3390/app15073624 - 26 Mar 2025
Viewed by 178
Abstract
The ordinary differential equations used to model a dynamic system can evolve during the simulation in circumstances where unpredictable events occur, more specifically, in regard to the domain of power electronics, for example, static converters will exhibit natural switching. Optimal sizing, on top [...] Read more.
The ordinary differential equations used to model a dynamic system can evolve during the simulation in circumstances where unpredictable events occur, more specifically, in regard to the domain of power electronics, for example, static converters will exhibit natural switching. Optimal sizing, on top of developing such a model, is a significant challenge for designers, particularly due to the complexity of incorporating efficiently both time-domain and frequency-domain constraints and objectives. This paper presents a methodology and tool to address this issue, leveraging a ‘white-box’ modeling approach, with automatic gradient computation. An efficient optimizer is coupled with a differential equation solver, capable of leveraging automatic differentiation and symbolic derivation, leading to both faster and more accurate outcomes than alternative methods. Furthermore, the developed solver incorporates original functionalities that are crucial for optimization, such as the ability to automatically detect the steady state and extract time-domain and frequency-domain features from the simulations to be optimized or constrained. The methodology is demonstrated through its application in regard to the optimal design of an aircraft electrical power channel. Full article
(This article belongs to the Special Issue New Challenges in Low-Power Electronics Design)
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16 pages, 7195 KiB  
Article
Analysis and Design of a Transient-State Resonant Converter Used as a Frequency Multiplier
by Josué Lara Reyes, Mario Ponce-Silva, Leobardo Hernandez-Gonzalez, Claudia Cortés-García, Jazmin Ramirez-Hernandez, Susana E. DeLeon-Aldaco, Oswaldo Ulises Juarez-Sandoval and Ricardo E. Lozoya-Ponce
Appl. Sci. 2025, 15(6), 3346; https://doi.org/10.3390/app15063346 - 19 Mar 2025
Viewed by 692
Abstract
The main contribution of this paper is to show the analysis and design of a resonant converter which was designed to operate in the transient stage and with underdamped response, where the resonant network stage has a frequency equal to “n” times the [...] Read more.
The main contribution of this paper is to show the analysis and design of a resonant converter which was designed to operate in the transient stage and with underdamped response, where the resonant network stage has a frequency equal to “n” times the frequency of the switching stage (fsw) “fo = nfsw”. The main advantage of this design methodology is to be able to operate the converter with frequencies higher than 1 MHz in the resonant network stage, without obtaining high levels of losses in the inverse stage. To validate this design methodology, a full bridge resonant converter acting as a frequency multiplier was implemented for a low power wireless power transmission application. For the experimental tests, a base frequency of 300 kHz was decided in the inverting stage, with a frequency multiplication of n = 3, 5, 7 in the resonant network stage (900 kHz, 1.5 MHz, 2.1 MHz) for an output power of 12 watts. Experimental tests proved the operation of the converter acting as a multiplier, where it was possible to reduce losses in the inverter stage, achieving efficiencies of up to 93% in the switching stage with frequencies higher than 1 MHz. Full article
(This article belongs to the Special Issue New Challenges in Low-Power Electronics Design)
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