: Power Electronics Firmware Senior Specialist

Position: Senior Specialist Power Electronics Firmware

Experience: 10–12 Years

Location: (Specify)

Department: R&D; / Product Engineering

Employment Type: Full-time

Role Overview The Senior Specialist – Power Electronics Firmware will lead the design, development, and optimization of embedded control firmware for advanced power electronic converters and UPS systems. This role requires deep expertise in closed-loop control algorithms, real-time embedded development, multilevel & interleaved PWM techniques, and load-sharing/paralleling control strategies. The candidate will work closely with hardware, system engineering, and validation teams to deliver high-performance, reliable, and certified power products.

Key Responsibilities

1. Firmware Development & Control Algorithms

- Design and implement real-time embedded control firmware for power converters (DC-DC, AC-DC, DC-AC, 3-level NPC, interleaved converters, UPS inverters).
- Develop advanced closed-loop control algorithms:
- PI/PR controllers
- dq-frame control
- current/voltage loop control
- grid-tie and standalone inverter control
- droop control
- nonlinear/observer-based controls (as needed)
- Implement digital PWM, dead-time control, PLL, current balancing, and modulation schemes (SPWM, SVPWM, 3-level modulation, interleaved PWM).
- Develop and optimize firmware for DSP/MCU platforms (TI C2000 preferred).

1. Paralleling & • Load Sharing

- Lead the development of paralleling algorithms for multi-converter and UPS systems (N+1 redundant, hot-sync, load-share control).




- Implement communication-based and droop-based load-sharing control loops.
- Ensure system stability during synchronization, phase alignment, current sharing, and transient events.
- Troubleshoot dynamic instability, oscillations, harmonics, and cross-current issues in paralleled systems.

1. Architecture, Design & • Documentation

- Define firmware architecture, state machines, safety routines, and diagnostic strategies.
- Develop detailed design documentation, test plans, and release notes.
- Ensure compliance with quality processes (MISRA-C, IEC/UL, documentation standards).

1. System Integration & • Validation

- Work closely with hardware teams to optimize sensor interfaces, protection circuits, and control bandwidth.
- Conduct lab testing of converters/UPS systems, tuning control loops, and managing EMI/thermal/efficiency trade-offs.
- Perform root-cause analysis and debug failures at system, firmware, and hardware levels.

1. Leadership & • Collaboration

- Mentor junior engineers in embedded development and control theory.
- Work cross-functionally with hardware, mechanical, compliance, and product teams.
- Drive innovation in converter topologies, control techniques, and software processes.





Required Skills & • Expertise

Technical Expertise

- Strong hands-on experience (10–12 years) in embedded firmware for power electronics.
- Deep understanding of closed-loop control of converters/inverters (dc-link control, current/voltage loops, PLL, PR, droop, dq-control).
- Expertise in paralleling of converters/UPS including sync control, load sharing, circulating current minimization.
- Solid experience with TI C2000 family (F280x, F2837x, F28004x, F2838x or similar).
- Proficiency in C/C++, fixed-point arithmetic, real-time firmware optimization.
- Experience with control design tools: MATLAB/Simulink, PSIM, PLECS.
- Knowledge of common topologies: interleaved converters, 3-level NPC, full-bridge inverters, LLC/DC-DC.
- Experience with communication interfaces: CAN, RS485, SPI, I2C, Modbus.

Preferred Additional Skills
- Experience with FPGAs or fast control loops on MCUs.
- Exposure to EMI/EMC compliance, safety standards, and grid-connect requirements.
- Knowledge of grid codes (IEC 62040, IEC 62109, IEEE 1547) is a plus.
- Understanding of reliability engineering and protection mechanisms.

Educational Qualifications
- B.E./B.Tech or M.E./M.Tech in Electrical Engineering, Power Electronics, Embedded Systems, or related field.

Behavioral Competencies
- Strong analytical mindset and problem-solving abilities.
- Ability to work independently and lead technically complex tasks.
- Good communication and teamwork skills.
- Ownership mindset with focus on quality and reliability.

📌 Senior Specialist Firmware. (Pune)
🏢 Fuji Electric
📍 Pune