Ammar.S

Architecting firmware for high-power EV charging infrastructure and isolated multi-port power converters.

• Architected safety-critical firmware for the Liquid Cooling System of a 200kW Level 3 EV charger, ensuring thermal stability under peak loads.
• Engineered a custom synchronization architecture for bare-metal dual-core applications on the Zynq-7000 SoC, offloading blocking routines to a secondary core to avoid control loop disruption.
• Designed and implemented high-performance FPGA IP cores in VHDL, including a configurable-frequency PWM driver and a real-time ADC processing engine with averaging and min-max detection.
• Co-led firmware evolution from a single-port architecture to a centralized-distributed multi-port system, integrating replicated ports and designing a custom serial link protocol for hub-port synchronization.
• Implemented fixed-point weighted average and sliding window filtering algorithms within FPGA fabric for low-latency signal conditioning in power control loops.
• Co-leading the R&D cycle for a High Power Density Isolated Multi-port Converter, overseeing inverter control algorithm implementation, debugging, and maturity.

Led electronics design and firmware engineering for avionics test and instrumentation systems.

• Led development of a BLDC Thrust Stand to characterize motor profiles; designed custom Fault Data Recorder (FDR) tester tools to validate hardware integrity.
• Decoded and implemented the S-BUS protocol on STM32 platforms for high-speed radio signal capture; developed PC-side parsing utilities for MR-72 nano-Radar telemetry.
• Designed two-layer PCBs in Altium and complex wiring harnesses in Visio for custom FDR tester hardware; developed HMI interfaces using Nextion Studio.
• Developed robust firmware for STM32-based devices using STM32Cube and GNU Arm Toolchain, focusing on real-time sensor fusion and data logging.

Worked on control systems and high-fidelity simulation for precision instrumentation.

• Developed a closed-loop control system for precision magnetic field regulation.
• Identified super-capacitor parameters and performed high-fidelity simulations for capacitor-based voltage sensing circuits.

Multi-rotor drone-swarm

• Led the development of the multi-rotor drone-swarm. Demonstrated a triangular swarm formation, consisting of three drones, with the leader on front vertex broadcasting it's coordinates, followed by two followers on both flanks, intercepting the leader's co-ordinates and following optimal calculated trajectory to maintain triangular formation.