Bipolar transistors


ESD protection, TVS, filtering and signal conditioning





Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)

AC EV wallbox

Car electrification is well underway and numerous countries have ambitious plans to rule out new petrol and diesel in the near future. One of the critical challenges in making electric vehicles more common, is the availability of accessible charging points. Standard AC wallboxes (offering between 3.6 kW (single-phase) and 22 kW (three-phase) of AC charging) are currently the most common and cost-effective residential option. With bidirectional technology (allowing electricity to flow into and out of EVs) rapidly maturing, this will enable cars to become mobile storage platforms and be fully integrated into smart grid infrastructures.

Block diagram

Highlighted components are Nexperia focus products

Design considerations

  • A single-phase or three-phase home grid connection has the greatest impact on design and topology choice, although charging speed is ultimately controlled by the vehicle's OBC / BMS capabilities
  • Slower single-phase systems are ideal for overnight charging, although higher power 22 kW AC chargers can be also be useful for semi-public charging in parking spaces or office locations
  • To minimize BOM cost and footprint, voltage regulator with power switch integrated in auxiliary power supply is usually adopted.
  • Inrush protection circuit (NTC, varistors, etc.) should be considered to prevent potential damage when charging starts

MOSFET and GaN FET Handbook

Drawing on over 20 years’ of experience, the MOSFET and GaN FET Application Handbook: A Power Design Engineer’s Guide brings together a comprehensive set of learning and reference materials relating to the use of MOSFETs and GaN FETs in real world systems.

Download your copy today 

H-bridge motor controller design using Nexperia discrete semiconductors and logic ICs

The H-bridge circuit in this Technical Note is a full bridge DC-to-DC converter allowing operation of a brushed DC motor (48 V max, 12 V min, 5 A max). All electronic functions are designed with Nexperia discrete and logic IC components (low cost, no microcontroller or software needed). Read more >>