On-board (OBC) and wireless charger

On-board (OBC) & wireless charger integrated circuits and designs


An on-board charger (OBC) is used in an electric vehicle (EV) or hybrid electric vehicle (HEV) to charge the traction battery from 48V to 800V. Functions of an OBC include:

  • Converting the grid 50/60Hz to DC
  • Adjusting the DC voltage to the levels required by the battery
  • Providing galvanic isolation
  • Power factor correction (PFC)
  • Motor control to prevent damage by arcs caused by hot unplugging

  • Wireless chargers are gaining significant traction in the automotive industry, and are expected to have at least 95 percent efficiency of wired charger electronics. Alignment of both transmission and receiver coils play a significant role in improving the chargers efficiency and performance.

    Technical documents

    Application notes & user guides

    Application Notes (3)

    Title Abstract Type Size (KB) Date Views
    PDF 63 KB 04 Oct 2018 0
    PDF 175 KB 28 Jun 2018 0
    PDF 738 KB 13 Jun 2018 0

    Product bulletin & white papers

    White Papers (2)

    Title Abstract Type Size (MB) Date Views
    PDF 1020 KB 08 Mar 2018 0
    PDF 586 KB 23 Sep 2016 0


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