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Sr. Principal Power Supply Designer - Palm Bay FL or Fort Wayne IN

Company: L3Harris Technologies
Location: Melbourne
Posted on: September 19, 2023

Job Description:

Description: Job Title: Sr. Principal Power Supply Designer (Relocation assistance will be provided to candidates outside the posted locations)
Job Code: SAS20231904-99844
Job Location: Palm Bay, FL or Ft Wayne, IN
Job Description:
The Power Supply Design Engineer will be responsible for specification, design, analysis and testing of GaN-based power supplies for avionics and spaceborne applications.
Essential Functions:

  • Provide program support, including mission/requirements definition, concept generation and trade studies.
  • Perform system, sub-system, circuit card assembly (CCA) design of GaN-based power supply circuits, including development from preliminary concept to final design. Specific tasks include schematic diagram generation, component selections, modeling and simulation, circuit analysis, testing, evaluation and integration support.
  • Effectively address specific design considerations and apply best design practices relevant to GaN power switching components:

    • Device biasing, driving, and stability through all quadrants of operation
    • Switching and conduction losses modeling, simulation, empirical measurement
    • Device paralleling and current sharing
    • Key layout practices to minimize and balance undesired parasitics (minimizing loop size, magnetic flux cancellation, gate trace and source return symmetry strategies)
    • Thermal considerations and management
    • Mounting considerations and galvanic isolation
    • EMI/EMC design considerations and problem resolution.
    • Produce technical documentation: including review materials for Customers, performance requirement specifications, test plans, and analysis reports.
    • Lead or support internal and external Design reviews, including Milestone events.
    • Perform Worst Case analyses (WCAs); support root cause corrective actions (RCCAs) and Failure Review boards (FRB).
    • Collaborate with manufacturing operation for fabrication in a program team environment.
    • Work independently or lead a small team of designers.


      • Bachelor's Degree with at least 9 years of relevant experience, OR a Graduate Degree with at least 7 years of relevant experience.
      • 7+ years of experience interpreting high level requirements to develop GaN-based power solutions.
      • 7+ years of experience in the design, development, test, evaluation and troubleshooting of GaN-based power converters.
      • 7+ years of experience of detailed power converter design across multiple topologies; GaN device characteristics, control loop theory, thermal management, custom magnetics design, PWB layout best practices and EMI filtering.

        Preferred Additional Skills:

        • Active TS/SCI clearance.
        • Experience with SPICE, MathCAD, Matlab, Simulink, Allegro and MentorGraphics tools.
        • Extensive discrete power supply design experience with GaN power switching components implemented across different topologies of AC/DC and DC/DC power converters (both isolated and non-isolated) that meet power and EMI/EMC requirements described under MIL-STD-1275, MIL-STD-704, MIL-STD-461, and DO-160.
        • Experience with Root Cause Corrective Actions (RCCA) and Failure Review Boards (FRB).
        • Experience leading teams and project designs.
        • Strong communication skills and the ability to work in a multi-disciplinary team environment
        • Demonstrated effective collaboration across all levels of organizational Leadership.

Keywords: L3Harris Technologies, Melbourne , Sr. Principal Power Supply Designer - Palm Bay FL or Fort Wayne IN, Other , Melbourne, Florida

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