Judy Amanor-Boadu

ORCID: 0000-0003-0401-1009
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About
Contact & Profiles
Research Areas
  • Advanced Battery Technologies Research
  • Energy Harvesting in Wireless Networks
  • Advanced Battery Materials and Technologies
  • Advancements in Battery Materials
  • Green IT and Sustainability
  • Low-power high-performance VLSI design
  • Electromagnetic Compatibility and Noise Suppression
  • Microgrid Control and Optimization
  • IoT-based Smart Home Systems
  • Photovoltaic System Optimization Techniques
  • Software-Defined Networks and 5G
  • Innovative Energy Harvesting Technologies
  • Wireless Power Transfer Systems
  • Advanced DC-DC Converters
  • Analytical Chemistry and Sensors
  • Advanced Sensor and Energy Harvesting Materials
  • Fuel Cells and Related Materials
  • Analog and Mixed-Signal Circuit Design
  • 3D IC and TSV technologies
  • Sensor Technology and Measurement Systems
  • Silicon Carbide Semiconductor Technologies
  • Electronic Packaging and Soldering Technologies
  • Power Line Communications and Noise
  • Semiconductor materials and devices

Intel (United States)
2021-2024

Phoenix (United States)
2023

Texas A&M University
2014-2022

Institute of Electrical and Electronics Engineers
2022

University of Catania
2022

Arizona State University
2020

Many methods have been proposed for faster and better battery charging with increased energy efficiencies. One of the most promising has pulse charge algorithm-also referred to as a technique. researchers investigated impact on lithium-ion batteries. However, combined duty cycle frequency current polymer batteries is seldom investigated. This work uses Taguchi orthogonal arrays search optimal parameters that will maximize efficiencies while decreasing time. Confirmation experiments were...

10.1109/tie.2018.2807419 article EN IEEE Transactions on Industrial Electronics 2018-02-19

The pulse charging algorithm is seen as a promising battery technique to satisfy the needs of electronic device consumers have fast and increased charge energy efficiencies. However, get benefits charging, current parameters be chosen carefully ensure optimal performance also extend life cycle battery. impact factors on characteristics are seldom investigated. This paper seeks evaluate factors, such frequency duty cycle, impedance lithium-ion polymer batteries (LiPo) while using design...

10.3390/en11082162 article EN cc-by Energies 2018-08-18

A pH-responsive, poly(2-hydroxyethyl methacrylate) [poly(HEMA)]-based hydrogel has been fashioned into an impedimetric pH sensor for the continual measurement and monitoring of tissue acidosis that can arise due to hemorrhaging trauma. Four systems molecularly engineered influence water distribution ionic abundance were studied: a cationogenic primary amine, N-(2-aminoethyl) methacrylate (AEMA), tertiary amine moiety, N,N-(2-dimethylamino)ethyl (DMAEMA), combined AEMA–DMAEMA formulation....

10.1021/acssensors.9b02336 article EN ACS Sensors 2020-01-17

This paper presents a multi-input battery charging system that is capable of increasing the efficiency lithium-ion (Li-ion) batteries. The proposed consists three main building blocks: pulse charger, step-down dc-dc converter, and power path controller. charger allows via wall outlet or an energy harvesting system. It implements charge techniques increase Li-ion battery. controller (PPC) functions as monitor selects optimal for either ac adapter. converter provides initial supply voltage to...

10.1109/tie.2018.2793243 article EN IEEE Transactions on Industrial Electronics 2018-01-15

This paper presents low-power circuit techniques for comparators and controllers to reduce increasing power loss of an active diode with offset/delay calibration in a 13.56-MHz CMOS rectifier. Unlike conventional switched-offset comparator, the proposed voltage-mode comparator reuses its bias current generate continuously adjustable offset voltage, thereby reducing loss. Offset accurate switching is adopted improve conversion efficiency (PCE) voltage ratio (VCR). The switch controller uses...

10.1109/tvlsi.2018.2845369 article EN IEEE Transactions on Very Large Scale Integration (VLSI) Systems 2018-06-22

Pulse charging of lithium-ion polymer batteries (LiPo), when properly implemented, offers increased battery charge and energy efficiencies improved safety for electronic device consumers. Investigations the combined impact pulse duty cycle frequency current on performance (LiPo) used Taguchi orthogonal arrays (OA) to identify optimal robust parameters that maximize while decreasing time. These were confirmed by direct comparison with commonly applied benchmark constant current-constant...

10.3390/app10030895 article EN cc-by Applied Sciences 2020-01-29

Energy harvesting is a green source of energy which can help reduce the maintenance cost in frequent replacement batteries, pollution, and enable long term powering devices places that are not easily accessible. In recent past, systems have been proposed to use charge storage devices. This paper presents simple but effective solution combine multiple simultaneously for battery charging. ensures environmental microsystems at all times. The system has monitoring interface, monitors systems'...

10.1109/mwscas.2014.6908419 article EN 2022 IEEE 65th International Midwest Symposium on Circuits and Systems (MWSCAS) 2014-08-01

The development of the energy sector and corresponding universal access to electricity is crucial in developmental growth any nation. Sub-Saharan Africa with its massive population, a thirteenth world's currently has only 31.69% people electricity. Considering remote locations most `unelectrified' communities, it becomes almost impossible achieve without considering stand-alone solar systems. Stand-alone photovoltaic systems cannot be considered taking into account storage their associated...

10.1109/powerafrica.2017.7991219 article EN IEEE PES PowerAfrica 2017-06-01

Voltage Regulators (VR) use non-linear features to mitigate large transient droops and overshoots, enable high server processor performance. VR behavior due is complex, can no longer be modeled using simple linear modeling methods. Accurately in conjunction with Power Delivery Networks (PDN) platforms becoming a necessity predict, optimize, explore, identify performance impacts when changes are made design parameters, such as current (Iccmax), decoupling capacitor solutions, components....

10.1109/emc/si/pi/emceurope52599.2021.9559328 article EN 2021 IEEE International Joint EMC/SI/PI and EMC Europe Symposium 2021-07-26

Modern server packaging techniques employ different integration to connect several heterogeneous dies on a single package circumvent die fabrication challenges. The large span of distance between the can make power delivery challenging. A single-sided entry see significant voltage drop from platform regulator (VR) package. novel approach is highlighted in this paper showing design with multi-sided socket pins and VR placement. This utilizes most benefit board copper capacitors. pre-silicon...

10.1109/ectc51906.2022.00210 article EN 2022 IEEE 72nd Electronic Components and Technology Conference (ECTC) 2022-05-01

10.1109/mim.2024.10540398 article EN IEEE Instrumentation & Measurement Magazine 2024-05-28

Voltage regulator (VR) and power delivery network (PDN) models are critical to the design of server platforms. Inaccurate can result in over-design, leading increased costs or an under-design, which lead performance deterioration. Tools, such as HSPICE SIMPLIS, used predict platform systems. These tools have different strengths weaknesses, e.g., provides more reliable results first voltage droop timing waveforms but does not accurately model behavior complex nonlinear VR controllers, SIMPLIS...

10.1109/spi60975.2024.10539218 article EN 2024-05-12

10.1109/mim.2024.10700733 article EN IEEE Instrumentation & Measurement Magazine 2024-09-30

The power consumption of server platforms has been increasing due to memory and processing power. This increases decoupling capacitors, board stack-up layers, voltage regulator (VR) phase count, serverplatform costs. A VR topology known as Trans-inductor (TLVR) seeks address the challenges faced by traditional switching VRs, such limited bandwidth, frequency tradeoff with efficiency, increased capacitors. It does so replacing output inductor a transformer. use TLVR on promises improved...

10.1109/vts56346.2023.10140054 article EN 2023-04-24

In the age of big data, data is being processed at a much faster rate than it was few years ago. Online streaming, social media, banking, and video chatting are activities that contribute to increase in storage, processing, usage data. According Cyber Security ventures, global storage predicted exceed 200 zettabytes by 2025 [1]. The processing necessitates need for powerful units. This leads datacenters playing key roles

10.1109/mim.2022.9832824 article EN IEEE Instrumentation & Measurement Magazine 2022-07-18
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