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Location: Bengaluru
Company: Larsen & Toubro
The engineer will work on key subsystems such as the Motor Control Unit/Inverter, PDU, On-Board Charger, DC-DC Converter, DC bus architecture, gate driver circuits, sensing circuits, power supplies, protection circuits, and system-level hardware integration.
This role is suitable for candidates with strong fundamentals in power electronics hardware design, EV high-voltage systems, analog/digital circuits, semiconductor devices, and product development from concept to functional prototype.
Roles and Responsibilities
- Design and develop hardware for 400V EV power electronics systems including Motor Control Unit/Traction Inverter, Power Distribution Unit, On-Board Charger, DC-DC Converter, DC Bus interconnect architecture, X-in-1 system level integration
- Perform detailed hardware architecture definition based on system requirements, vehicle requirements, power ratings, thermal limits, safety requirements, and packaging constraints.
- Select suitable components for high voltage EV applications, including IGBT/SiC/MOSFET, Gate Drivers, DC Link Capacitors, Sensors, Sensing circuits, contactors, fuses, magnetics, EMI/EMC filters, Busbars, etc
- Carry out component derating analysis and prepare design calculations
- Develop detailed schematics for power stages, gate drivers, sensing paths, auxiliary power supplies, protections, control cards, comm interfaces, HVIL and safety circuits
- Work closely with PCB layout engineers for high–current layout, high voltage creepage and clearance, loop optimisations, EMI-EMC sensitive routing, isolation barriers, vias and copper balancing, grounding, etc.
- Carry out functional bring-up of prototype hardware boards and complete EV power electronics systems.
- Perform board-level and subsystem-level testing.
- Support integration testing with motor, gearbox, battery simulator, dyne, vehicle controller and BMS.
- Support integration of MCU, PDU, OBC, DC-DC, motor, gearbox, cooling system and control electronics into a compact X-in-1 EV drivetrain system.
- Support design reviews, schematic reviews, PCB reviews, prototype reviews and customer/OEM technical discussions.
- Coordinate with mechanical, thermal, software, motor, gearbox and vehicle integration teams.
Eligibility
- Total experience – 3 to 5 years in power electronics hardware design, preferably in EV, automotive, industrial drives, chargers, DC-DC converters, motor controllers or high-voltage systems.
- M.E. / M.Tech in Power Electronics and Drives.
- The candidate should have knowledge of power electronics fundamentals, HV EV systems, components selection, magnetics design, schematic design, thermal and electrical derating, EMI EMC design basic
Desired Skills
- Understanding of automotive development processes
- Experience working with suppliers, semiconductor vendors and PCB manufacturers
- Hands-on approach to hardware bring-up and debugging
- Willingness to work in fast-paced EV product development environments
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