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Advanced Device, Circuit, and Control Techniques for Energy Harvesting System...
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Advanced Device, Circuit, and Control Techniques for Energy Harvesting System Design

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Power Electronics".

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 3189

Special Issue Editor

Prof. Dr. Woo-Young Choi

E-Mail Website
Guest Editor
Division of Electronic Engineering, Jeonbuk National University, Jeonju 561-756, Republic of Korea
Interests: power electronics; energy conversion; circuit design; digital programming
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue is proposed to encourage further research and development in energy harvesting systems. The energy harvesting systems need to be designed to meet the power requirement of the various applications such as wake-up radios, self-powered sensors, and solar power generation. The design of energy harvesting systems is quite challenging and requires a multidisciplinary design approach. This Special Issue welcomes the submission of original contributions for advanced device, circuit, and control techniques applied to energy harvesting system design.

The topics of interests include, but are not limited to the following:

  •  Power devices using Si and WBG technologies;
  • PV devices for high-efficiency energy harvesters;
  • High-efficiency transducers for harvesting energy;
  • Circuit design for high-efficient RF to DC conversion;
  • Power management circuits and energy storage elements;
  • Micro-inverters for solar power generation and distribution;
  • Power converters for energy harvesting and energy management;
  • Micro-controllers, FPGAs, and SoCs for energy harvesting systems;
  • Applications of digital control techniques to energy harvesting systems;
  • Design methodology and system configuration of energy harvesting systems.

Prof. Dr. Woo-Young Choi
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. Electronics 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.

Published Papers (1 paper)

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Research

12 pages, 4061 KiB  
Article
A High Efficiency Low Noise RF-to-DC Converter Employing Gm-Boosting Envelope Detector and Offset Canceled Latch Comparator
by Thithuy Pham, Dongmin Kim, Seohyeong Jeong, Junghyup Lee and Donggu Im
Electronics 2021, 10(9), 1078; https://doi.org/10.3390/electronics10091078 - 02 May 2021
Viewed by 2561
Abstract
This work presents a high efficiency RF-to-DC conversion circuit composed of an LC-CL balun-based Gm-boosting envelope detector, a low noise baseband amplifier, and an offset canceled latch comparator. It was designed to have high sensitivity with low power consumption for [...] Read more.
This work presents a high efficiency RF-to-DC conversion circuit composed of an LC-CL balun-based Gm-boosting envelope detector, a low noise baseband amplifier, and an offset canceled latch comparator. It was designed to have high sensitivity with low power consumption for wake-up receiver (WuRx) applications. The proposed envelope detector is based on a fully integrated inductively degenerated common-source amplifier with a series gate inductor. The LC-CL balun circuit is merged with the core of the envelope detector by sharing the on-chip gate and source inductors. The proposed technique doubles the transconductance of the input transistor of the envelope detector without any extra power consumption because the gate and source voltage on the input transistor operates in a differential mode. This results in a higher RF-to-DC conversion gain. In order to improve the sensitivity of the wake-up radio, the DC offset of the latch comparator circuit is canceled by controlling the body bias voltage of a pair of differential input transistors through a binary-weighted current source cell. In addition, the hysteresis characteristic is implemented in order to avoid unstable operation by the large noise at the compared signal. The hysteresis window is programmable by changing the channel width of the latch transistor. The low noise baseband amplifier amplifies the output signal of the envelope detector and transfers it into the comparator circuit with low noise. For the 2.4 GHz WuRx, the proposed envelope detector with no external matching components shows the simulated conversion gain of about 16.79 V/V when the input power is around the sensitivity of −60 dBm, and this is 1.7 times higher than that of the conventional envelope detector with the same current and load. The proposed RF-to-DC conversion circuit (WuRx) achieves a sensitivity of about −65.4 dBm based on 45% to 55% duty, dissipating a power of 22 μW from a 1.2 V supply voltage. Full article
(This article belongs to the Special Issue Advanced Device, Circuit, and Control Techniques for Energy Harvesting System Design)
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