World’s first position-free multi-device Qi-based wireless charger

The project encompassed the complete hardware architecture, custom coil design, algorithm development, industrial and mechanical design, testing, and validation. The charging platform solution had to support high power delivery, be versatile and user-friendly, and be scalable for charging 1 to 4 devices at once, that could cater to various industries, including automotive, hospitality, and consumer electronics.

Key Challenges

Traditional wireless chargers often require precise alignment, limiting user convenience and efficiency. The challenge was to design a charger that

Eliminates the need for exact positioning while supporting multiple devices simultaneously

The solution needed to be scalable, reliable, and compatible with all Qi-enabled devices

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The Solution

Transformed mobile charging experience by developing world’s first position-free multi-device wireless charger. Infosys InSemi team leveraged strong capabilities in wireless power solutions. The comprehensive approach included:

Hardware Architecture: Developed a robust platform architecture to support multi-device charging.
Custom Coil Design: Engineered a unique 3-coil design to enable position-free charging.
Algorithm Development: Designed and implemented a coil selection algorithm to optimize charging efficiency.
User-Centric, Industrial and Mechanical Design: Ensured the charger had seamless user experience with customizable settings, was aesthetically pleasing and mechanically sound.
Testing and Validation: Created detailed test plans, executed rigorous testing, and validated the system to ensure reliability and safety.
Safety and Compliance: Incorporated advanced safety features and ensured compliance with international standards (CISPR 25, WPC 1.2.4).
Prototype to Mass Manufacturing: Helped client transition from prototype development to scalable mass production.