Bipolar transistors

Diodes

ESD protection, TVS, filtering and signal conditioning

MOSFETs

SiC power devices

GaN FETs

IGBTs

Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)

High-voltage (> 400 V) 3-phase standard inverter (PMSM & ACIM)

High-voltage 3-phase inverters operating above 400 V represent the high-end of industrial and infrastructure power conversion. Often driving permanent magnet synchronous motors (PMSM) and AC induction motors (ACIM) in demanding applications such as industrial pumps and compressors, traction drives, wind turbine pitch control and grid-tied energy storage systems. At these voltage levels, semiconductor stress, insulation coordination and system-level safety become paramount concerns, while the choice between GaN FETs, SiC MOSFETs and IGBT modules defines the efficiency, switching frequency and thermal envelope of the entire drive system. The increasing adoption of variable speed drives (VSD) at high voltage is further intensifying demands for wider operating voltage ranges, longer service lifetimes and compliance with stringent industrial and grid standards.


  • Block diagram
  • Design considerations
  • Design resources
  • Product listing
  • Support

Block diagram

AC / DC Power management Gatedriver Commsinterrface Signalprocessing Sensorinterface Aux powersupply aaa-045216 Inverter stage and break Single or3-phase CPU CAN Wired / Wireless grid M 3 Highlighted components are Nexperia focus products.

Select a component

To view more information about the Nexperia components used in this application, please select a component above or click on a component (highlighted in blue) in the block diagram.

Design considerations

  • Above ~400 V, selection is driven by efficiency vs switching speed vs cost, with SiC often preferred for high efficiency and high-frequency operation.
  • Isolation and gate-driver robustness are mandatory - use isolated drivers or supplies with strong CMTI and dV/dt immunity, as switching nodes can exceed tens of kV/µs.
  • Overvoltage and transient margins become a primary failure risk. DC bus spikes from switching and regen require higher voltage derating, snubbers and robust clamp / protection design.
  • Safety, creepage, and fault handling drive system architecture. High voltage demands galvanic isolation, reinforced protection and fast fault response (DESAT/OCP) to protect devices and meet compliance.

 

 

Product listing