The output of the cell phone charger is 5v/ 850mA while the output of the USB port is 5v/ 500mA.
As you may know, we can charge our cell phones by plugging them either to the USB port (from PC) or to the charger that comes with it.
It means we can charge the cell phone even if the output current is less than 850mA because we charge it through USB which has no more than 500mA.
As a result. I am building a circuit that requires 5V/ 100mA, it is straightforward that I can draw this current from the cell phone charger. So it would be 100mA for my circuit and the remaining 750mA for charging the cell phone.
Is there any wrong if I do that? share me your idea.
As you may know, we can charge our cell phones by plugging them either to the USB port (from PC) or to the charger that comes with it.
It means we can charge the cell phone even if the output current is less than 850mA because we charge it through USB which has no more than 500mA.
As a result. I am building a circuit that requires 5V/ 100mA, it is straightforward that I can draw this current from the cell phone charger. So it would be 100mA for my circuit and the remaining 750mA for charging the cell phone.
Is there any wrong if I do that? share me your idea.
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