Y A W A R .
Engineering the Physical Layer.
"The physical layer is unforgiving—it demands absolute truth."
I work on hardware and software across power electronics, embedded systems, test equipment, and space applications.
My work spans the product lifecycle: translating requirements into system architecture, designing circuits and PCBs, developing firmware, bringing up prototypes, and preparing hardware for manufacture and test. This includes DFM/DFA, vendor coordination, and reliability analysis through FMECA, FMEA, and worst-case circuit analysis.
Recent projects include electrical power system (EPS) architecture for LEO satellite constellations, battery management for ground-based energy storage, and grid-tied solar PV inverters at 10kW and above. I also develop electrical ground support equipment (EGSE), hardware-in-the-loop setups, power loggers, and protection instrumentation to help test and understand these systems.
Alongside hardware, I build desktop applications and embedded software for data acquisition, load analysis, billing, and engineering calculations. My experience also includes technical advisory work on spacecraft components and energy infrastructure, working with other engineers, researchers, and vendors from early design through testing and commissioning.
Current work
Plug-in custom camera hardware
Closed SourceDeveloping a pluggable camera hardware interface, with attention to high-speed signal integrity and system integration.
Precision PCB Heater
Active R&DDesigning a PCB heater with thermistor feedback and PWM power control for controlled thermal environments.
Portable Power Supply
Active R&DDeveloping a portable power supply with battery management, compact converters, and electrical protection.
Electro-Optics: Line Scanners & MOKE
ExploratoryExploring line scanners and Magneto-Optic Kerr Effect (MOKE) instrumentation for measurement and sensing.
Interactive Engineering Tools
Engineering calculators for loop compensation, IPC trace width, and magnetic component parameters.
LAUNCH TOOLSSelected projects
Hardware & embedded systems
Power Logger
Software / HardwareTen-channel bidirectional DC power logger rated to 100 V, with an analog front end and STM32 USB interface. The project includes firmware, calibration, and a desktop app for plotting and comparing channels.
Satellite EPS & EGSE
hardware / SpaceThis work covers satellite power systems and the ground equipment used to test and support them.
Power Conversion
hardwareBuilt a 100W linear power supply, a 100W two-quadrant power supply, and a 150W electronic load. Also worked on 10kW+ grid-integrated PV inverters and motor controllers.
Ground Energy Storage BMS
hardwareDesigned and deployed battery management systems (BMS) for ground energy storage.
DFIG Test Bench
hardwareDesigned a Doubly Fed Induction Generator test bench through the PCB layout stage.
DACard-Basic DAQ Prototype
Hardware / prototypeSTM32-based data-acquisition prototype with analog inputs, sensing, GPIO, and PWM interfaces. The public repository documents the hardware; its firmware and host software are not included.
500 W Three-Phase Inverter Board
hardwareThree-phase inverter PCB tested at 500 W continuous power, with on-board output-filter and DC-link capacitor options.
Software
CATS (CAN Automated Testing Software)
SoftwareHardware test software using a PCAN interface to send commands, read responses, check results, and record them.
Custom Desktop Applications
Software / DesktopDeveloped desktop applications for electrical load profiles, billing, and data acquisition (DAQ).
Transformer Design Tools
Software / EDABuilt software tools for transformer and inductor calculations and design.
WayriCAD (formerly KiWay)
Software / EDAOpen-source KiCad plugin suite for PCB design and analysis, including fanout routing, via stitching, BOM editing, trace RLC analysis, and power and signal integrity checks.
sigLib
Software / DSPC library of filters, signal checks, and PID control functions.
Advisory & Strategy
Consulted on spacecraft components, GNSS simulators, magnetic torque rods, and state-level energy infrastructure.
Production & Verification
Familiar with Design for Manufacturing/Assembly (DFM/DFA), Test-jigs, Bed of Nails design, and cultivating long-term vendor relationships.
Reliability Analysis
Work includes root cause analysis, fault analysis, hardware debugging, FMECA, FMEA, and WCCA.
Areas of work
Worked across product design, Design for Manufacturability (DFM), Design for Assembly (DFA), vendor coordination, and reliability analysis including FMECA, FMEA, and Worst-Case Circuit Analysis (WCCA). Advised on state-level infrastructure projects and coordinated small teams during design, testing, and commissioning of satellite systems and 10kW grid-tied inverters.
Designed satellite EPS subsystems and ground support equipment (EGSE). Other work includes ground energy storage BMS, 10kW grid-tied PV inverters, 100W linear and two-quadrant power supplies, 150W electronic loads, motor controllers, and DFIG test benches, along with near-field and thermal sensing tools.
Designed mixed-signal boards operating around 1GHz, including dense layouts with up to 16 layers.
Designed BLDC, induction, and DC motor controllers from 2W to 2kW. Wound transformers and inductors for designs below 300W.
Developed desktop applications for data acquisition (DAQ), electric load analysis, billing, transformer design, and HIL system control.
Built Hardware-in-the-Loop (HIL) setups including DACard-Basic. Validation work includes test jigs, Bed of Nails fixtures, logging, near-field and thermal sensing, and hardware debugging tools.
Experience Timeline
Senior Electrical Engineer
currentWorking on EPS architecture for multiple satellites, ground support equipment, and test processes with other engineering teams.
- EPS Architecture & Design: Worked on LEO satellite EPS design from sizing and parts selection through assembly. Studied power system sizing from 200W to kilowatt-scale constellations and higher-orbit applications.
- Flight Hardware & Teamwork: Supported the design, testing, and commissioning of the Firefly satellite constellation. Worked with thermal, mechanical, AOCS, and AIT teams, and coordinated small teams developing in-house solar panels and internal components. Contributed to system architecture and led EPS design for subsequent satellites.
- Power Electronics: Designed buck power tiles (up to 100V) handling >200W/tile, achieving power densities ~800W/in³ and >93% efficiency. Developed current limiters and latch-up protection circuits.
- Simulation & Analysis: Used LTspice, Qspice, NX, and Ansys for electrical and thermal analysis with thermal teams.
- Software & Tooling: Developed EPS sizing software for solar arrays and batteries to speed up configuration and fault analysis.
- Reliability & Standards: Developed local component search tools and databases to support COTS evaluations for space applications. As part of a wider sourcing effort, contributed to work that reduced selected lead times from >6–7 months to 1–4 weeks. Contributed to FMECA, FDIR design, and firmware requirements, with work informed by MIL-STD-431G, ISRO PAX, IPC class 2/3, and ECSS standards.
Technical Advisor
Advised hardware startups on prototyping, production planning, component sourcing, and embedded systems integration.
- Mentored students and PhD candidates on hardware design.
- Ran hands-on hardware design workshops.
Project Associate (R&D Architecture)
Coordinated a small team developing a 10kW grid-tied inverter testbed. Built hardware and software for researchers to test power control algorithms, and contributed to a DFIG test setup.
- Developed grid-connected inverter hardware and custom PCBs.
- Designed custom signal isolation and DAQ pathways.
- Bridged high-level MATLAB/Simulink models with bare-metal PWM execution.
- Conducted applied workshops teaching systems-level hardware interaction.
- Mentored students and PhD candidates in hardware architecture.
Research Analyst / Associate & Technical Advisor
Analyzed how EV infrastructure could affect the local distribution grid and prepared recommendations for the state electricity regulator.
Latest Engineering Logs
#1 500W Three-Phase Inverter: Architecture and Layout
This article describes the architecture and layout choices for a three-phase inverter board tested at 500 W continuous power. The main design concerns include switching...
#2 Generating PWM with STM32
Microcontrollers handle tasks from sensor sampling to motor control. PWM generation is one example where the timer configuration matters as much as the application code....
Education
Academic Background
Masters in Electrical Engineering
Specialization in Power Systems & Renewable Energy | Graduated with Grade A
Lovely Professional University (LPU) | 2022
Bachelors in Electrical Engineering
Graduated with Grade A
University of Kashmir | 2019
Publications & Research
Ultracapacitor Integration with Regenerative Braking Systems in Electric Drive Trains
ScienceDirect / Elsevier | 2023 | DOI: S2352152X23025987
Application of V2V Energy Sharing in Electric Vehicles with Source Switching
IEEE Xplore | 2022 | Document: 9851081
Experimental Implementation of Optimally Tuned Multifunctional RLMLS Driven VSc Tied to Single Phase Voltage Weak Distribution Grid
Springer Link | 2023 | DOI: 10.1007/s12652-023-04578-w
A New Modular Multilevel converter Topology Using Flying Ultra-capacitor and cascaded h-bridges
Springer Book chapter | 2021 | DOI: 10.1007/978-981-16-1186-5_8
Where does the power go?
Change a load or its duty cycle. See what it costs in battery life.
- Average load
- 1.95 W
- Battery draw
- 2.17 W
- Conversion loss
- 0.22 W
- Peak load ceiling ⓘ
- 5.15 W
Radio uses 41% of the average load power.
How this estimate works
Average load = Σ(on-state power × duty cycle). Battery draw = average load ÷ converter efficiency. Runtime = usable battery energy ÷ battery draw. Peak load ceiling assumes every load with a nonzero duty cycle can turn on together; it is measured at the load, before converter losses.
The values are an editable example, not measurements from a project. This simple model assumes constant conversion efficiency and zero off-state power. Enter usable energy after any battery derating; standby draw, temperature effects, startup surges, and changes in efficiency need a more detailed budget.
Engineering Log & Case Studies
I occasionally write about engineering challenges, side projects, and learnings.
I'm open to talking about systems architecture, hardware development, energy technology, research, and projects involving planes, trains, satellites, or robots. Or, just to have a chat.
You can reach out to me on linkedin or .