Renesas Electronics WPC Qi 1.3 certified in-cabin wireless charging reference design

     Renesas Electronics Group, a global provider of semiconductor solutions, has introduced the next generation of WPC QI-certified customer reference design for in-vehicle wireless charging, the P9261-3C-CRBv2. The design addresses industry needs and enables automakers to quickly and efficiently achieve superior performance and safety features for wireless charging applications in the cockpit.

     The P9261-3C-CRBV2 solution includes the automotive standard wireless power controller P9261, which uses the MP-A13 three-coil reference design as a wireless power transmitter (TX) to enable a large area of active charging with efficient and superior EMC/EMI performance. The reference design meets the 15W charging requirements of the Wireless Charging Alliance (WPC) Qi 1.3 standard EPP (Extended Power Configuration). This solution supports the wireless charging private protocol and is capable of delivering 50W of power.

     The new P9261-3C-CRBv2 design includes a Renesas RH850 MCU as the main controller, Enabling the system to deliver functional safety features compliant with Automotive Safety Integrity Level B (ASIL B), the P9261-3C-CRBv2 EVK (Evaluation Kit) can be controlled and monitored in real time through a graphical user interface (GUI).

     The GUI provides key parameter data such as the selected coil, transmitter status, input voltage, step-down output current, Tx power, and bridge voltage. The GUI supports simple program modifications and firmware updates, as well as debugging of customer-specific variables related to hardware design, such as foreign object detection (FOD) Settings.

     "The P9261-3C-CRBv2 reference design demonstrates why automakers are using Renesas' easy-to-use design environment to rapidly develop next-generation solutions - it delivers today's ideal wireless charging performance and supports the latest safety features required by users," said Niall Lyne, vice president, Automotive Analog Power and Video, Renesas Electronics.