Hi everyone,
I’m working on a small wireless charging project and exploring different coil options. I’ve mostly seen traditional hand-wound or PCB coils used in DIY builds, but I recently came across some ready-made wireless charging coils from AK Stamping that are designed for Qi applications.
I’m curious if anyone here has experience using these types of pre-manufactured coils instead of winding your own or using basic PCB coils.
A few specific questions:
-
Have you noticed any differences in efficiency, coupling, or EMI performance compared to standard wound coils?
-
For a low-power Qi system (around 5W–10W), what type of coil would you recommend?
-
Any tips for selecting the right coil specs to match a controller/driver IC?
I’m still in the early design phase and trying to understand what direction makes the most sense before ordering parts.
Would really appreciate any advice or real-world experience. Thanks!