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