USB Chargers

The USB Battery Charging Specification 1.2 can be found here:
http://komposter.com.ua/documents/BC1.2_FINAL.pdf

More information:
http://www.righto.com/2012/03/inside-cheap-phone-charger-and-why-you.html

An USB charger IC:
http://www.ti.com/product/tps2511?DCMP=analog_power_mr&HQS=tps2511-pr

A table with D+/D- connections in common Chargers:
http://www.righto.com/2012/10/a-dozen-usb-chargers-in-lab-apple-is.html

 

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