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USB is Universal Serial Bus. If your question relates to a specific chip, please mention it in your question.

1
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2answers
I have a tablet case with a keyboard in it. It came with a large USB type A plug and a large Y-adapter to USB micro-B. It has always worked. The tablet has a micro-B type connector and it works fine … don't measure the 5V. The tablet USB port still works and I can charge the tablet. Any ideas? In the photo the wires are (left to right) -, n/c, data+, data-, +. …
asked Apr 28 by PJ Noxon
0
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Something like this LM2596S based DC-DC convertor would work really well. I have had good experience buying on eBay. Then you need a micro-B USB receptacle and a DC power plug but you have to check … the dimension of the hair clipper power plug. Plug the receptacle into whatever USB charger you already have to check the voltage. Wire up the convertor and adjust it to get the output voltage matching …
answered Apr 28 by PJ Noxon