Working Principle Of Charger

All mobile phone chargers are actually composed of a stable power supply (mainly a voltage-stabilized power supply, providing stable working voltage and sufficient current) plus necessary constant current, voltage limiting, time limiting, overshoot and other control circuits.
The output parameters marked on the original charger (referring to the line charger): such as output 4.4V/1A, output 5.9V/400mA, refer to the relevant parameters of the internal voltage-stabilized power supply. For example, the output of 4.4V can be used for 4.5V devices, and 5.9V can be used for 6V devices.