Implementation of comfortable and highly versatile in-vehicle charging technology

NXP Semiconductors announced that it has developed an innovative 15W wireless charging solution that meets strict automotive and industrial product standards.

Compatible with WPC Qi and PMA charging standards, this technology is a comprehensive solution that enables vehicle manufacturers to easily transition from the existing 5W to 15W. This allows drivers to charge their mobile phones, tablets, and wearable devices faster inside the vehicle.

The newly introduced WCT-15WTXAUTO solution increases charging speed by up to three times and meets vehicle-specific requirements, such as AEC-Q100 Class 2 standards. The operating temperature range has also been improved, and a 15-year product lifespan is guaranteed. To enhance the driving experience and vehicle safety, the 15W solution incorporates multi-coil technology, offering greater flexibility in space utilization. This allows devices to be charged anywhere on the charging surface. NFC (Near Field Communication) functionality is also integrated.

The WCT-15WTXAUTO was developed based on NXP's successful 5W charging solution, which is already being applied to various vehicle models launching this year.

“Wireless charging technology has now become mainstream in the mobile device market and is expanding its horizons beyond traditional consumer charging mats to in-vehicle charging,” said Denis Cabrol, Global Marketing Director for Microcontrollers at NXP. “While the automotive environment presents specific challenges in implementing these applications, NXP provides a platform with diverse capabilities that can easily overcome these issues during the design process.”

NXP provides powerful solutions to help customers streamline product development and certification processes. This enables shorter development times and cost savings of hundreds of thousands of dollars, allowing for a greater focus on innovation and usability during the development phase. The WCT-15WTXAUTO solution supports WPC Qi and PMA dual modes and features a hardware design optimized for cost and production convenience. Through a proven firmware core, it enables power transmission and flexible positioning, while also providing robust foreign object detection capabilities.

This solution was developed to operate under the constrained operating conditions of a vehicle interior and is designed not to interfere with other systems such as electronic keys, ignition, and AM radio. It is fully integrated with NFC chips via APIs to detect and protect contactless smart cards, and supports the CAN bus to enable in-vehicle network communication. Custom designs for charging, communication, and control are also possible.

The WCT GUI graphical user interface tool enables the setup and optimization of wireless charging transmission solutions to be completed in a short time. Upon customer request, NXP also provides professional support and services.