switch mode power supply - Why do these USB mobile phone chargers have multiple output ratings? - Electrical Engineering Stack Exchange

PSU that comes with any electronics device usually has a single output voltage rating. This is because they are intended for use with a single device. These Samsung phone chargers have multiple out

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charger - Why are there two different output voltage ratings on some power supplies? and How it works? - Electrical Engineering Stack Exchange

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My power supply has 12V and 2000mA - if 2000mA=2A why put 2000mA and not just put 2A? - Electrical Engineering Stack Exchange

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