Bidirectional DC/DC Converter

Overview
Solutions
HW Evaluation Tools
Documentation
CAD Resources
Tools and Software
Key Products
Get Started

Electric vehicles (EV) use two different power systems; a high-voltage battery (200 to 450 VDC) for traction and a low-voltage (12 V) one for supplying all the electric appliances in the vehicle.  Traditionally the low-voltage battery was charged from the alternator, but in today's vehicles it gets its power from the high-voltage battery pack. However, in specific electric car architectures, this low voltage battery should be ready to help recharge the high-voltage battery pack in order to provide energy for cranking the car.

This means that the on-board DC-DC converter must be bi-directional and very efficient as well as highly reliable in order to run the complex control algorithms needed to ensure an energy-efficient solution.

ST has a wide offer of discrete semiconductors including AEC-Q101 qualified IGBTs and both silicon and silicon-carbide (SiC) MOSFETs and diodes, AEC-Q100 qualified galvanically isolated IGBT and MOSFET gate drivers and SPC5 32-bit automotive microcontrollers to enable scalable, cost-effective and energy-efficient solutions for implementing these challenging converters.

Recommended for you

All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      STPOWER MOSFET Finder

      Active

      STPOWER MOSFET finder mobile app for tablets and smartphones

      Finders Apps ST
      STPOWER MOSFET Finder

      Description:

      STPOWER MOSFET finder mobile app for tablets and smartphones
    • Part number
      Status
      Description
      Type
      Supplier

      SEL-PROT-TVS

      Active

      Transient voltage suppressor smart selection tool

      TVS smart selector --
      SEL-PROT-TVS

      Description:

      Transient voltage suppressor smart selection tool

Converter

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.

Diodes (Power Schottky & FERD) Smart Selector

TVS Smart Selector