Jobs · Information Technology · California

Intern, Power Magnetics Engineer

Heron Power · Scotts Valley, CA · 4 mo ago
On-siteInformation TechnologyFull-time

Job Overview

Heron Power develops advanced power electronics systems to modernize and scale electrical energy infrastructure. As a Power Magnetics Engineer Intern, you will support the design, validation, and characterization of magnetic components used in high-efficiency, high-power, and medium-voltage converter systems.

How You Will Contribute

  • Support the validation and characterization of medium-voltage magnetic components including inductors, transformers, planar magnetics, magnetic current sensors, and common-mode chokes
  • Affiliate in developing and executing test plans to evaluate magnetic performance, including inductance, loss, saturation, thermal behavior, and insulation integrity
  • Perform laboratory measurements using oscilloscopes, impedance analyzers, LCR meters, power analyzers, and thermal measurement tools
  • Analyze switching waveforms to evaluate magnetic performance within power converter systems
  • Support EMI/EMC validation efforts, including evaluation of common-mode chokes and filtering components
  • Assist with electromagnetic modeling and FEA simulations to analyze magnetic fields, losses, and parasitic effects
  • Help evaluate PCB layout and physical implementation to identify parasitic inductance, capacitive coupling, and EMI-related issues
  • Affiliate in building, assembling, and modifying prototype magnetic components and test fixtures
  • Collect, analyze, and document experimental data and compare results with design expectations and simulation models
  • Collaborate with power electronics, mechanical, and layout engineers to support magnetics integration and performance optimization

What You Will Bring

  • Currently pursuing a Bachelor’s, Master’s, or PhD in Electrical Engineering or related field
  • Strong fundamentals in power electronics, including switching converter operation
  • Familiarity with electromagnetic and magnetic component fundamentals
  • Familiarity with inductors, transformers, and magnetic materials
  • Hands-on laboratory experience with oscilloscopes, multimeters, or similar test equipment
  • Experience with circuit simulation tools such as LTspice, PLECS, or equivalent
  • Strong analytical and problem-solving skills
  • Ability to work in a hands-on hardware development environment

Must-Have Requirements

  • Experience testing or characterizing magnetic components
  • Familiarity with planar magnetics or PCB-integrated magnetics
  • Experience with electromagnetic simulation tools such as ANSYS Maxwell, FEMM, or COMSOL
  • Familiarity with EMI/EMC fundamentals and filtering techniques
  • Understanding of parasitic inductance, capacitance, and high-frequency effects in power converters
  • Experience working with magnetic core materials such as ferrite, nanocrystalline, amorphous, or powder cores
  • Understanding of insulation coordination, creepage and clearance, and partial discharge considerations
  • Experience with laboratory instruments such as impedance analyzers or power analyzers
  • Familiarity with wide-bandgap devices such as SiC or GaN
  • Experience with MATLAB or Python for data analysis
  • Strong interest in power electronics and energy systems

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