15W Ultra-thin Qi Coil by Dongguan Fuying Electronics

Dongguan Fuying Electronics Co., Ltd. is a professional manufacturer focused on the customization and mass production of custom coils and precision inductors. As a reliable supplier of customized magnetic components, we have extensive industry experience in developing high-performance wireless charging coil solutions for consumer electronics. We specialize in solving core technical challenges including high charging efficiency, low heat generation and ultra-thin structure design for all types of custom coil products. This practical case fully highlights the professional manufacturing capabilities of Dongguan Fuying Electronics in customized wireless charging coil production.

A reputable consumer electronics brand launched a new 15W fast wireless charger project, yet faced prominent technical limitations from standard off-the-shelf coils. The client needed a customized Qi charging coil that strictly complies with Qi fast charging standards. This high-precision wireless charging coil required an ultra-thin structure, low temperature rise during long operation, stable inductance and high conversion efficiency, effectively avoiding charging jitter and sudden power-off problems. Since standard precision inductor products cannot meet the ultra-thin and personalized structural requirements, Dongguan Fuying Electronics provided exclusive custom coil customization services. We optimized the winding density, wire gauge and magnetic structure of the wireless charging coil, and adopted high-purity copper and low-loss magnetic materials to improve overall performance. After multiple simulation tests and sample adjustments, our customized Qi charging coil achieved stable inductance, low heat accumulation and high electromagnetic conversion efficiency, perfectly matching the client’s ultra-thin product assembly space. After rigorous aging tests and full performance verification, this customized magnetic component passed all industry certifications. At present, the customized wireless charging coil is in stable mass production, greatly improving the end product’s charging stability and helping clients enhance market competitiveness.