Magnetics Engineer, Medium-Frequency Transformers

Skills

About the Role

You will design the medium-frequency transformer at the heart of every SST cell, choosing core materials, windings, insulation and liquid cooling. You will validate designs with hi-pot, partial-discharge, impulse and thermal-cycling tests, review vendor designs, and turn your design into a manufacturable part with a qualified second source.

Requirements

• Designed and built high-frequency transformers or inductors for power converters at tens to hundreds of kilowatts
• Designed medium-voltage insulation and run hi-pot, partial-discharge, and impulse tests
• Used FEA to predict losses, leakage inductance, and hot spots
• Experience cooling windings through the insulation system without partial discharge
• Taken a magnetic component from prototype to volume production
• Root-cause failure analysis experience

Responsibilities

• Design the medium-frequency transformer for every SST cell
• Choose core materials, winding structures, insulation, and liquid cooling
• Prove designs with hi-pot, partial-discharge, impulse, and thermal-cycling tests and set production acceptance tests
• Review vendor transformer designs and sign off on insulation margins
• Make the design manufacturable by suppliers and qualify a second source

Benefits

• Equity in the form of restricted stock units
• Benefits package