Power Electronics & Controls Engineer Resume Title

Mohan Akunuri

Email: **************@*****.*** Phone: +1-737-***-****

www.linkedin.com/in/akunurim

Power Electronics & Model-Based Controls Engineer

Professional Summary

Power Electronics Engineer with 6+ years of hands-on experience in the design, modeling, simulation, and validation of power electronic systems, including three-phase inverters, isolated and non-isolated AC/DC and DC/DC converters, motor drive systems, and high-power switching topologies. Strong expertise in power circuit analysis, IPM-based motor control, gate drive design, thermal and loss modeling, and efficiency optimization. Proven experience developing MATLAB/Simulink plant and control models for HVAC and chiller systems, executing MIL/SIL/HIL validation workflows, and correlating simulation results with hardware behavior. Proficient in embedded C/C++ for real-time control and test automation, PCB-level bring-up and debugging, and laboratory diagnostics using oscilloscopes, power analyzers, and high-voltage instrumentation. Experienced in system-level hardware testing, fault analysis, and verification of power electronics under real-world operating conditions.

Technical Skills

• Power Electronics: Inverters, DC-DC Converters, AC-DC Converters, Motor Drives, Gate Drivers

• Switching Devices: IGBT, MOSFET, SiC devices; Device Characterization; Loss Modeling

• Simulation: MATLAB/Simulink, PLECS, PSPICE, Thermal Modeling & Circuit Analysis

• Controls & HVAC: HVAC/Chiller Simulation, Model-Based Controls, MIL/SIL, Stateflow

• Hardware & Testing: HIL (dSPACE, OPAL-RT), PCB Prototyping, Oscilloscopes, Power Analyzers

• Programming: Embedded C, C++, Python, MATLAB Scripts

• Instrumentation: Thermal Cameras, DAQ Systems, Diagnostic Tools Professional Experience

Power Electronics & Controls Engineer – Renesas Electronics, Texas Sep 2024 – Present

• Designed and simulated inverter and IPM-based motor-drive control architectures in MATLAB/Simulink, implementing PWM modulation schemes, inner current-loop control, protection mechanisms, and fault- handling logic suitable for embedded motor-control platforms.

• Developed real-time HIL validation setups using dSPACE and OPAL-RT to evaluate inverter switching dynamics, closed-loop control stability, fault response, and motor-drive protection behavior prior to physical hardware integration.

• Performed detailed power semiconductor characterization of IGBT and MOSFET devices, including turn- on/turn-off behavior, dv/dt and di/dt analysis, switching-loss estimation, and high-frequency gate-driver performance evaluation.

• Executed electro-thermal modeling of inverter power stages, analyzing junction temperature rise, heat-sink performance, transient and steady-state thermal behavior, and derating limits under varying load conditions.

• Conducted laboratory validation on 400–600V inverter prototypes, capturing switching waveforms, verifying gate-drive timing margins, evaluating EMI-sensitive transitions, and analyzing transient responses using high-bandwidth oscilloscopes and power analyzers.

• Developed HVAC and system-level thermal control models in Simulink to support cooling-loop regulation, airflow dynamics, and thermal balancing for power electronics and motor-drive assemblies.

• Supported prototype hardware bring-up through PCB schematic and layout reviews, component qualification, gate-driver tuning, and systematic debugging of inverter power stages and control interfaces.

• Implemented test automation and data-logging frameworks using MATLAB and Python to support power- cycle testing, waveform acquisition, regression testing, and CI/CD-based validation of control and power electronics performance.

Power Electronics Systems Engineer – Flanders, Evansville, IN May 2023 – Sep 2024

• Developed inverter, DC-DC converter, and power-distribution models for vehicle electrification systems using Simulink and PLECS.

• Designed and tested IPM motor-drive control algorithms including torque control, FOC blocks, and inverter PWM sequences.

• Created MIL/SIL test cases for thermal derating, DC-link behavior, power-flow modeling, and switching- event validation under transient load conditions.

• Validated thermal performance of inverter modules, analyzing junction rise, cooling efficiency, and load- dependent temperature stability.

• Performed switching-transient and harmonic analysis for 400–600V traction inverter stages, ensuring safe and stable operation under various load profiles.

• Modeled HVAC/thermal-management systems in Simulink, supporting vehicle conditioning cycles, airflow simulations, and compressor-control strategies.

• Integrated fault-diagnostics, high-voltage protections, and derating strategies into inverter control logic for safe operation under abnormal conditions.

• Executed lab validation of inverter prototypes, including current-loop tuning, DC-link behavior evaluation, device stress analysis, and waveform diagnostics.

Power Electronics Design Engineer – Tata Electronics, India Oct 2020 – Aug 2021

• Designed IPM motor driver circuits including gate-driver stages, current feedback paths, protection loops, and PWM switching strategies.

• Developed DC-DC converter topologies (buck, boost, synchronous buck) for high-efficiency power stages used in industrial and automation systems.

• Executed end-to-end hardware development from schematic design and component selection to prototype build, testing, and final validation.

• Performed switching device characterization for IGBTs/MOSFETs/SiC devices, analyzing switching curves, rise/fall behavior, and loss distribution.

• Worked extensively on 600V inverter platforms, validating HV insulation, creepage/clearance rules, protection circuits, and thermal behavior.

• Conducted thermal modeling and reliability analysis for power modules, verifying junction temperatures under continuous and transient operating states.

• Carried out lab testing of inverter boards using oscilloscopes, DSOs, power analyzers, and thermal cameras to evaluate waveform quality and switching transitions.

• Executed EMI/EMC pre-compliance tests and applied layout/design modifications to meet UL/IEC power- electronics standards.

• Supported PCB layout reviews for power boards, gate drivers, high-current paths, and snubber networks ensuring stable switching performance.

• Delivered engineering documentation including thermal reports, switching analysis, test plans, and prototype validation summaries.

• Automated HIL tests using MATLAB/Python scripts for data capture, regression runs, waveform analysis, and performance verification.

• Identified system-level issues through HIL testing—such as switching instability, timing mismatches, and thermal overshoot—and implemented corrective design changes before prototype fabrication. Embedded Power Controls Engineer – LG Electronics, India Aug 2017 – Sep 2020 Designed and implemented embedded motor-control algorithms for inverter-driven compressors and motors using MATLAB/Simulink, Stateflow, and embedded C/C++.

• Implemented IPM motor-control architectures including field-oriented control (FOC), vector control, PWM generation, current/torque regulation, and fault-management logic.

• Developed dynamic HVAC and chiller system models in MATLAB/Simulink to evaluate cooling load behavior, compressor sequencing, airflow response, and thermal dynamics.

• Created and executed MIL/SIL validation frameworks to verify control algorithms, switching sequences, signal-conditioning paths, and edge-case operating scenarios.

• Built and deployed HIL test environments using OPAL-RT and dSPACE to validate real-time inverter control, switching transients, IPM response, and protection mechanisms.

• Performed hands-on inverter prototype validation including oscilloscope waveform analysis, current-loop tuning, harmonic evaluation, and thermal performance assessment.

• Validated 600V compressor inverter hardware, ensuring correct operation of high-voltage protection features including OCP, OVP, UVP, OTP, and short-circuit handling.

• Supported power-electronics hardware bring-up through gate-driver evaluation, DC-link stability analysis, and systematic power-stage debugging.

• Developed MATLAB and Python automation tools for simulation orchestration, data capture, and regression analysis integrated into CI/CD validation pipelines.

• Authored detailed technical documentation covering system models, control-flow changes, validation results, and hardware-software integration for design reviews and certification support. Education

• Master of Science in Computer Sciences – Eastern Illinois University

• Bachelor of Technology in Electronics & Communication Engineering – KL University

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