Senior HV Motor Drive Engineer – 4-Quadrant Inverters

allocortech inc.; Charlottesville (VA); On-site; USD 120,000 - 170,000; Full time

Benefits offered by this job

Equity opportunities

Cash bonus

Top-tier medical

Company-sponsored HSA

Unlimited PTO

401(k) match

Job summary

Allocor.Tech in Virginia leads Taurus-class inverters for 4-quadrant FOC/SVPWM drives from ~20 V to 405 V and up to 32 kW, designed and tested in Virginia. The role owns the schematic-to-bring-up process and drives layout, EMI, and production testing to meet aerospace vibration and thermal requirements.

You will push the front end with precise current sensing, isolation, and high-dv/dt performance, with opportunities to scale to 800 V class and future high-power platforms.

Qualifications

• 5+ years on motor drives or HV power stages.
• BLDC/PMSM inverter topologies, gate drivers, current sensing, snubbers, creepage/clearance, magnetics.
• Schematic and layout judgment on mixed-signal, high-dv/dt boards (Altium or equivalent).
• Lab fluency: scopes, current probes, power analyzers, thermal cameras, dyno or equivalent.
• Bonus: SiC, DO-160, CAN, isolated comms, hybrid-electric or eVTOL programs.

Responsibilities

• Own schematic-to-bring-up: SiC/Si MOSFET inverters, gate drive, isolated sensing, DC link, protection, thermal path.
• Design for 80-400+ V, tens of kW peak, four-quadrant regen, IP67 packaging, and aerospace vibration/thermal environments.
• Get the analog front end right - current sense, offset, bandwidth, isolation, ADC integrity - because FOC depends on it.
• Drive layout review, proto, EMI/thermal debug, and production test.
• Help stand up the next voltage and power class, including 800 V-class work already in motion.

Skills

Motor drives

HV power stages

BLDC/PMSM

Gate drivers

Current sensing

Snubbers

Creepage/clearance

Magnetics

Altium

Oscilloscope

Current probes

Power analyzers

Thermal camera

Lab equipment fluency

Tools

Altium

Oscilloscope

Current probes

Power analyzers

Thermal camera

Job description

Allocor.Tech in Virginia leads Taurus-class inverters for 4-quadrant FOC/SVPWM drives from ~20 V to 405 V and up to 32 kW, designed and tested in Virginia. The role owns the schematic-to-bring-up process and drives layout, EMI, and production testing to meet aerospace vibration and thermal requirements.

You will push the front end with precise current sensing, isolation, and high-dv/dt performance, with opportunities to scale to 800 V class and future high-power platforms.