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Advances in Power-Management Integrated Circuits

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F: Electrical Engineering".

Deadline for manuscript submissions: closed (31 July 2022) | Viewed by 4987

Special Issue Editor


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Guest Editor
Department of Electronic Engineering, The Chinese University of Hong Kong (CUHK), Hong Kong, China
Interests: power-management integrated circuits; ultra-low-power analog integrated circuits

Special Issue Information

Dear Colleagues,

Power-management integrated circuit (PMIC) design impacts power-usage efficiency in system-on-a-chip. In addition, to switch between different modes of operations such as the power-saving and full-power modes, the design of voltage regulators is undoubtedly very important. Over the past two decades, power efficiency, steady-state accuracy and transient errors, as well as recovery speed of voltage regulators were key research topics in PMIC designs. Since the size of today’s portable electronic devices are shrinking signficantly, in the coming five to six years, more attentions will be focused on size and weight reductions of the voltage-regulator circuits. This trend causes more challenges to PCB design, and thus, minimization of component count on the PCB is necessary. The external passive components such as inductors and capacitors for voltage regulators are expected to be further minimized. The ultimate goal is to integrate all required passive components to the PMIC chips to achieve local on-chip regulation, while the chip-area cost due to on-chip passive components can be further reduced.

This Special Issue, “Advances in Power-management Integrated Circuits”, is focused on bringing together innovative developments of DC-DC converters. We invite prospective authors to submit outstanding research and development results in topics that include—but are not limited to—the following:

  • ultra-low-power voltage references;
  • analog and digital low-dropout regulators;
  • switch-inductor DC-DC converters;
  • switch-capacitor DC-DC converters;
  • energy-harvesting circuits;
  • wireless power transfer.

We look forward to receiving your contributions. It is recommended to send a tentative title and a short summary of the manuscript to Energies Editor Ms. Carly Liu <[email protected]>.

Dr. Ka Nang Leung
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. Energies 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 2600 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-management integrated circuits
  • Energy harvesting
  • DC-DC converters
  • System-on-a-chip
  • Wireless power transfer

Published Papers (2 papers)

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Research

15 pages, 4514 KiB  
Article
A CMOS Active Rectifier with Efficiency-Improving and Digitally Adaptive Delay Compensation for Wireless Power Transfer Systems
by Yichen Zhang, Junye Ma and Xian Tang
Energies 2021, 14(23), 8089; https://doi.org/10.3390/en14238089 - 2 Dec 2021
Cited by 4 | Viewed by 2014
Abstract
A CMOS active rectifier with digitally adaptive delay compensation for power efficiency improvement is presented in this work. The power transistors are turned on and turned off in advance under the control of the regenerated compensation signals, which are generated by the proposed [...] Read more.
A CMOS active rectifier with digitally adaptive delay compensation for power efficiency improvement is presented in this work. The power transistors are turned on and turned off in advance under the control of the regenerated compensation signals, which are generated by the proposed compensation control circuit; therefore, the reverse current is eliminated, and the efficiency is increased. Simulation results in a standard 0.18 μm CMOS process show that the turn-on and turn-off delay of the rectifier is effectively compensated. The power efficiency is up to 90.6% when the proposed rectifier works at the operation frequency of 13.56 MHz. Full article
(This article belongs to the Special Issue Advances in Power-Management Integrated Circuits)
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14 pages, 2688 KiB  
Article
Optimization of Charge Pump Based on Piecewise Modeling of Output-Voltage Ripple
by Yajun Lin, Jianxin Yang, Tin-Wai Mui, Yong Zhou and Ka-Nang Leung
Energies 2021, 14(16), 4809; https://doi.org/10.3390/en14164809 - 6 Aug 2021
Cited by 1 | Viewed by 2025
Abstract
This work proposes a piecewise modeling of output-voltage ripple for linear charge pumps. The proposed modeling can obtain a more accurate design expression of power-conversion efficiency. The relationship between flying and output capacitance, as well as switching frequency and optimize power-conversion efficiency can [...] Read more.
This work proposes a piecewise modeling of output-voltage ripple for linear charge pumps. The proposed modeling can obtain a more accurate design expression of power-conversion efficiency. The relationship between flying and output capacitance, as well as switching frequency and optimize power-conversion efficiency can be calculated. The proposed modeling is applied to three charge-pump circuits: 1-stage linear charge pump, dual-branch 1-stage linear charge pump and 4× cross-coupled charge pump. Circuit-level simulation is used to verify the accuracy of proposed modeling. Full article
(This article belongs to the Special Issue Advances in Power-Management Integrated Circuits)
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