Larsen & Toubro Ltd

Printed Circuit Board (PCB) Layout Engineer - Power Electronics

Larsen & Toubro Ltd
Bengaluru/Bangalore
Not disclosed
Work from OfficeWork from Office
Full TimeFull Time
Min. 4 yearsMin. 4 years

Job Description

PCB Layout Engineer

Role Summary  (P17)

The PCB Layout Engineer is responsible for designing multi-layer PCB layouts for power electronics hardware such as AC-DC rectifiers, DC-DC converters, inverters, onboard/offboard chargers, SMPS, gate drivers, and control boards.

The role focuses on high-power, high-voltage, high-frequency layout, ensuring thermal performance, EMI/EMC compliance, safety isolation, and manufacturability.

Key Responsibilities

1. PCB Layout Design (High Voltage / High Current / High Frequency)

  • Design multi-layer PCBs (2–12+ layers) for:
    – Power stages (MOSFET/IGBT/SiC/GaN)
    – Gate driver boards
    – HV/LV sensing circuits
    – Digital controller boards (MCU/DSP)
    – Auxiliary power supplies
  • Optimize layout for:
    – Low loop inductance
    – Controlled impedance traces
    – Creepage & clearance for HV designs
    – Short gate loops and Kelvin source routing
    – High current copper thickness and pours

2. EMI/EMC-Optimized Layout

  • Apply best practices for:
    – Minimizing switching noise
    – Grounding strategy (AGND/DGND/PGND separation)
    – Shielding and filtering
    – Common-mode noise control
    – Differential pair routing (CAN, LVDS, Ethernet)

3. Thermal & Mechanical Considerations

  • Design layouts supporting:
    – Heat spreading
    – Thermal relief, thermal vias
    – Heatsink and busbar interface
    – Component derating and spacing

-- component supports & PCB mounting considering vibration/shock

 

  • Work with mechanical team for 3D integration.

4. Compliance & Safety Layout

  • Ensure PCB meets:
    – Creepage/clearance per IEC/UL standards
    – Insulation requirements for HV (>800 Vdc)
    – Automotive or industrial safety rules
  • Design as per IPC/IEC standards
  • Design isolation barriers with proper spacing and cut-outs.

5. Design for Manufacturability (DFM) & Assembly (DFA)

  • Apply DFM/DFA rules with PCB fabs and assemblers.
  • Prepare fabrication files  Gerber/ODB++, Drill files, Stack-up,  Mask files, Assembly drawings, Pick & place data
  • Generate 3D models of the PCB
  • Perform /coordinate Signal integrity and Power Integrity Analysis

6. Library & Documentation Management

  • Create and maintain symbols, footprints, and 3D models.
  • Maintain layout documentation, revision control, and release notes.

7. Cross-Functional Collaboration

  • Work with:
    – Power Electronics/ Hardware circuit designers
    – Embedded/control engineers
    – Mechanical engineers
    – Manufacturing and quality teams
  • Participate in design reviews (DR0/DR1/DR2/DFM review).

Required Skills & Qualifications

Technical Skills

  • Strong experience in PCB layout for power electronics converters.
  • Experience in layout of Control boards with DSP/microcontrollers/FPGA
  • Expertise in:
    – High-voltage (400V, 800V, 1500V)
    – High-current (>100A)
    – High-frequency SiC/GaN switching layouts
  • Knowledge of EMI/EMC and grounding rules.
  • Strong understanding of analog, digital, and mixed-signal routing.
  • Understanding of PCB manufacturing constraints, soldering and assembly process
  • Good understanding of IPE /IEC standards for PCB layout (IPC2220series, IPC7531 etc)

 

Ability to read schematics and understand converter topologies.

Tools

  • Cadence Allegro / OrCAD
  • Altium Designer 
  • Mentor Graphics (PADS/Xpedition)
  • ECAD-MCAD integration (SolidWorks/Creo)

Experience

  • PCB layout experience in AC-DC PFC, LLC/DC-DC converters, Inverters/traction converters, EV chargers / BESS modules and their controllers
  • Experience with wide-bandgap SiC/MOSFET modules is an advantage.

Qualifications

  • Diploma / B.E / B.Tech in Electronics, Electrical.
  • Experience Levels    4–10 years with 4+ years in PCB layout

Preferred Experience

  • Circuit Design experience.
  • Hands-on knowledge of Kelvin source routing, Snubber loop optimization, Gate driver–power stage co-layout
  • Knowledge of simulation tools (ANSYS SIwave, HyperLynx) preferred.
  • Familiarity with safety standards (UL, IEC 61800, IEC 61000).

 

Job role

Work location
Work locationBengaluru
Department
DepartmentProduction / Manufacturing / Engineering
Role / Category
Role / CategoryManufacturing R&D
Employment type
Employment typeFull Time
Shift
ShiftDay Shift

Job requirements

Experience
ExperienceMin. 4 years

About company

Name
NameLarsen & Toubro Ltd
Job posted by Larsen & Toubro Ltd

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