Power Electronics Engineer in Lincoln, United Kingdom
Power Electronics Engineer
Dynex Semiconductor Ltd
Power Assemblies Design
Full time
Permanent
THE OPPORTUNITY
We are seeking an experienced Electrical / Power Electronics Design Engineer to join our team and support the design, development, analysis, testing and validation of high-power semiconductor assemblies and power conversion systems.
The role covers the complete electrical design process, from system-level analysis and semiconductor selection through to detailed assembly design, simulation, testing, technical documentation and customer support.
KEY RESPONSIBILITIES
Analyse three-phase power systems, including six-pulse, twelve-pulse and multi-pulse rectifier topologies.
Perform transformer analysis, including star-star, star-delta, delta-star and delta-delta configurations.
Assess harmonics, power factor, commutation overlap, voltage regulation and fault currents.
Analyse transformer and semiconductor interaction, including leakage reactance, switching losses, reverse recovery and semiconductor stress.
Design high-voltage series-connected and high-current parallel-connected diode and thyristor assemblies.
Develop voltage and current sharing networks, including tolerance and worst-case assessments.
Design RC snubbers, surge suppression and crowbar protection systems.
Design low-inductance busbars and current paths, considering current density, short-circuit forces, stray inductance and thermal performance.
Carry out steady-state and transient thermal analysis for convection, forced-air and water-cooled systems.
Establish design margins, derating strategies and lifetime assessments.
Support testing, validation, technical investigations and customer requirements through to final technical documentation.
ABOUT YOU
You will be an experienced Electrical or Power Electronics Engineer with a strong understanding of high-power electrical systems and semiconductor applications.
You will have:
A degree in Electrical Engineering, Power Engineering or a related discipline.
At least 5 years' relevant experience in a power electronics or high-power electrical engineering environment.
Strong knowledge of transformers, power semiconductors and three-phase power systems.
