I’m planning to replace the USB switch mode power adapter by a better one.
A torodial or R-core transformer will feed a switch mode regulator. The regulatur should deliver 5V of course an at least 2A. I know there are some suppliers out there delevering complete regulator boards. Many of them are located in Asia and sell through ebay.
Can anyone recomend a switch mode regulator board from any of theses suppliers?