The charging circuit of the mobile phone motherboard mainly includes the charger at the input end, the main control chip, the battery management chip, the charge management chip and the battery. When the charger is inserted into the mobile phone, the main control chip will detect the output voltage and current of the charger, and then control the battery management chip through the charge management chip to achieve charging. At the same time, it is also necessary to prevent safety problems such as overcharge, overdischarge and short circuit through circuit control.
During the charging process, the main control chip will adjust the current and voltage according to the state of the battery and the output of the charger, and finally realize the safe charging of the battery.
Yes: The power management chip converts the current input by the charger into a voltage suitable for the mobile phone battery, and then charges the battery to a preset voltage level through the charging circuit inside the mobile phone.