The Wireless Power Consortium (WPC) recently held a technical conference at Xiaomi's Beijing headquarters to advance the upcoming Qi 50W wireless charging standard.
The event took place from June 22 to June 25, bringing together engineers from major consumer electronics companies, including Apple, Google, Huawei, Honor, Oppo, and Vivo.
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The meeting focused on technical specifications, prototype testing, and interoperability requirements for 50W wireless charging. The WPC, which oversees the Qi standard, has been gradually increasing power limits.
After adopting the 15W magnetic Qi2 standard as an IEC international standard in late 2024, the consortium introduced a 25W specification in 2025.
The 50W standard is the next milestone, with an expected release in 2028.
Xiaomi's Proposed Architecture
Much of the discussion centered on Xiaomi's proposed hardware architecture for the Qi 50W standard.
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Xiaomi noted that the existing coil design requirements for Qi2 are restrictive and pose thermal management challenges, especially for foldable phones and automotive charging pads.
To address this, Xiaomi spent two years developing a low-inductance, low-voltage charging architecture.
This alternative design aims to reduce coil loss and improve heat dissipation while making charging modules easier to integrate into modern devices.
Xiaomi submitted the proposal to the WPC in late 2024 and completed cross-vendor testing with 25W and 50W prototypes throughout 2025.
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In the first quarter of 2026, the WPC officially incorporated this architecture into the drafting process for the Qi 50W standard.
During the four-day event, more than 20 companies participated in a Plugfest, a standard industry testing process where different chips, coils, and devices are checked against each other to identify compatibility issues.
Companies like Anker, NXP, and Southchip tested their prototype hardware to ensure that future 50W chargers will work safely and reliably across different device brands.
For Chinese hardware manufacturers, integrating their low-inductance charging technology into the global Qi standard is a practical business requirement.
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It ensures their domestic supply chains remain compatible with international markets, preventing regional fragmentation in wireless charging standards.
