Well, modern DC converters use PWM, and also the device in question is a Qi induction charger operating at 110 - 205kHz with up to 15W output so there is some s

Well, modern DC converters use PWM, and also the device in question is a Qi induction charger operating at 110 - 205kHz with up to 15W output so there is some significan- how are these unlicensed!?