ยฉ Ashique Anan Abir, 2025
About Me
Hi there! I'm Ashique Anan Abir, and I have a bachelor's degree in Electrical and Electronic Engineering (EEE). My journey in engineering has been exciting and full of learning. I'm enthusiastic to learn about new and emerging technologies, which will allow me to approach real-world problems from multiple perspectives.
My Research Interests
I'm passionate about several areas of technology and engineering. I love exploring different fields, from power electronics and renewable energy to embedded systems, artificial intelligence, machine learning, data science, and biomedical engineering. I believe that looking at problems from different angles can lead to unique and creative solutions.
Highlighted Research
I designed and built a prototype Arbitrary Waveform Generator that outputs complex bipolar signals with seven selectable, positive and negative voltage levels, reaching up to 100 V. This first version operates in the subโkHz range and involved endโtoโend work across schematic design, PCB layout, and firmware to shape and control the waveforms. Iโm now working on a next iteration to push higher frequencies, expand the voltage range, and add more output levels.
Publications
I've published some of my research papers from my completed projects and thesis, and I'm just getting started! I'm always on the lookout for new and exciting topics to explore, so I'll be updating this page with my latest findings. Check out the list below to see what I've published so far. And if you're curious for more, feel free to swing by my Google Scholar page for a deeper dive.
1. A single-phase cascaded h-bridge multilevel inverter with reduced switching devices and harmonics
2. Generation of 13-Level Output Voltage from Single-Phase Multilevel Inverter Consisting of Cascaded Three H-Bridge Units
3. Experimental investigation on single-phase multilevel inverter for generating 21-level output voltage using four H-bridge units
4. Experimental and Simulation Study of Harmonics in Asymmetric Multilevel Inverter Fabricated Using Four Units
5. An Experimental Study of Cascaded H-Bridge Multilevel Inverter for Obtaining Multiple Voltage Waveforms Containing Different Number of Levels
My Works
From pioneering cascaded H-bridge multilevel inverters in my undergraduate thesis to publishing IEEE conference papers based on my self-built test bench, my research journey has been electrifying! I then shifted gears as a Research Assistant at Giga Tech Ltd., where I harnessed my embedded systems know-how to develop a prototype mechanical ventilator, blending tech with healthcare. Professionally, I've powered through roles at Giga Tech Limited, mastering medical device accuracy, and at United Mymensingh and United Jamalpur Power Ltd., where I navigated the vast operations of power plants. These eclectic experiences fuel my passion as I steer toward my doctoral research goals.
Project Ventilator
Here is a running demonstration of the prototype ventilator that I worked on. Powered by a Cortexยฎ-M4F-based MCU TM4C123G, it operated with and controlled several flow and pressure sensors, O2 sensors, and CO2 sensors connected via the I2C protocol, along with several controlling valves. It featured UART device-to-device communication with a Linux-based HMI for human operation. I worked on the backend of this device.
Experimental Setup of MLI
Here are some pictures of the experimental setup of the Multilevel Inverter. Using an ATmega2560-based microcontroller (Arduino Mega), I generated gate pulses and controlled the final multileveled output. In simulation, by optimizing the gate pulse timings, I achieved even lower harmonics. I plan to continue working on this project, as I see huge potential for improved results and modifications for use in other impactful devices.
MLI in Simulations
My journey into multilevel inverter research began with simulations. Following the experimental setup, I have made numerous incremental improvements through continued simulation. As shown in the figure, the adjusted gate pulse timings have resulted in a remarkably low Total Harmonic Distortion (THD), a highly desirable attribute of the output voltage.
Ventilator; Under The Hood
This demonstration showcases the hardware-level functionalities of the prototype ventilator. It highlights the MCU and HMI communicating seamlessly while the device is fully operational.
Deep Analysis of Datasets
I love the thrill of dissecting large datasets to uncover hidden insights and wisdom. Equipped with a diverse skill set in programming and data analysis, I'm continually enhancing my abilities by learning new techniques. In this section, you'll discover the intriguing results from my analysis of the "mpg" dataset, a key component of a recent project. For a deeper dive into my methods and findings, feel free to explore the full project on my GitHub repo!
Mileage Prediction with ML
I dove into the thrilling world of data analysis and machine learning with the "mpg" dataset, a treasure trove of car information, including mileage. I analyzed this data to extract insights and developed a machine-learning model. This adventure was as fun as it was educational!
Predicting Survivability with ML
In this exciting project, I explored the Titanic dataset, rich with passenger information. I meticulously analyzed and cleaned the data, using it to develop a model that predicts individual survival likelihood, achieving a strong performance score.
Classifying Flower Species with Decision Trees
As I dove into this project, I explored the Iris dataset, aiming to develop an algorithm to predict and classify flower species based on their characteristics. Using decision tree classifier, I achieved impressive results. While hyperparameter optimization was considered, the initial model's high accuracy highlighted the quality of the data.
High-Voltage AWG (Prototype)
Designed and built a prototype Arbitrary Waveform Generator (AWG) capable of producing complex bipolar signals with 7 distinct positive and negative voltage levels, each designed to reach up to 100V. This initial proof-of-concept operates in the sub-kHz range. The project involved schematic design, PCB layout, and firmware development to control the output waveforms. The next iteration will focus on significantly increasing the output frequency, voltage and levels.
End-to-End Hardware Prototyping
I bring my electronic designs to life through full-cycle prototyping: from initial concept and simulation to circuit design, PCB layout, and final assembly. I have experience designing for multi-layer boards but have successfully adapted and manufactured several complex projects on single-layer PCBs, optimizing layouts to overcome local manufacturing constraints. This process has honed my skills in practical, resourceful engineering.
ESP32 Environmental Data Logger and Web Dashboard
A compact ESP32 system that reads BMP280 temperature/pressure, computes altitude, and hosts a live web dashboard over WiโFi. Data is logged to SPIFFS as CSV, with lightweight JSON APIs and real-time charts in the browser. Iterations added timestamps, runtime stats, CSV download, and history backfillโresulting in a minimal, selfโhosted monitor on the local network.
Beyond the Resume
When I'm not diving deep into work or research, you'll find me chasing inspiration through a kaleidoscope of hobbies! My camera is my trusty sidekick, capturing the world's wonders one snap at a time. There's something exhilarating about the roar of my motorcycle, whether I'm cruising down open roads or tinkering with its mechanics in my garage. The virtual world of video games and esports is my playground, where I revel in epic adventures and thrilling competitions. But that's not allโI have a soft spot for the skies and the open road, with a keen interest in aviation and automobiles. My techie side loves geeking out over the latest in camera gear and computer hardware. And when I need a dose of deep thought, philosophy is my go-to. These passions fuel my curiosity and keep my learning engine revving!View My World in Photos
If you are interested in my photography and want to see the world through my eyes, feel free to check out my photography page.
GGWP
Thanks for visiting my portfolio website! I hope you find my work and journey interesting and inspiring. Feel free to reach out if you want to collaborate, discuss ideas, or just chat. Let's create and innovate together!