EV auxiliary systems replace traditional belt-driven mechanical applications, when the vehicle architecture requires it, or can benefit from the change. For years, internal combustion engine (ICE) vehicles have integrated electric auxiliary systems using the 12V battery to power modules for electric power steering (EPS), 120VAC inverter and electric parking brake. Mild hybrids (MHEVs) have an option to run higher power loads from the 48V battery, which were not feasible on the 12V battery. Additionally, converting a 12V auxiliary system to run from the 48V battery improves the design by reducing wiring size. Hybrids (HEVs) and Plug-in Hybrids (PHEVs) have an ICE, but these auxiliary systems can be more efficient running from the high-voltage battery, rather than the engine belt. Battery electric vehicles (BEVs) do not have a combustion engine, requiring replacement of any belt-driven system with an electric alternative.

E-Pump, e-Turbo, coolant PTC, e-Cooling Fan, other auxiliary motor inverter implementations, and expanding convenience features, all become relevant to address these needs.

Our automotive products covering silicon carbide (SiC), IGBT, Super-Junction MOSFET, Automotive Power Module (APM) and gate driver provide the flexibility to design scalable systems.

Block Diagram


Evaluation/Development Kits


15W High Voltage Auxiliary Power Supply for HEV & BEV Applications.


40W High Voltage Auxiliary Power Supply for HEV & BEV Applications.


6V to 18V Input Isolated SiC Gate Driver Supply Using the NCV3064 Automotive Qualified Controller.


6V to 18V Input Isolated IGBT Gate Driver Supply Using the NCV3064 Automotive Qualified Controller.


Gate Drivers Plug-and-Play Ecosystem

Technical Documents

Automotive Smart Power Module, The 1200V ASPM34 Series

Automotive Smart Power Module, 650V ASPM27 Series

The Difference Between GaN and SiC Transistors

Recommendations for Reliable Switching Performance Using 40V and 80V Automotive Power Modules Using Shielded-Gate MOSFETs

Physically Based, Scalable SPICE Modeling Methodologies for Modern Power Electronic Devices

Zero-Drift Precision Op Amps: Advantages and Limitations of the Chopper-Stabilized Architecture

EMC Tests and PCB Guidelines for Automotive Linear Regulators

Low VCE(sat) BJT’s in Automotive Applications

Basics of In-Vehicle Networking (IVN)

EMI / ESD Protection Solutions for the CAN Bus