A charger is a device that converts electrical energy into chemical energy and stores it in a battery or storage battery. Its working principle mainly includes the following steps:
Input power
A charger usually needs to be connected to an AC or DC power supply to provide the power required for charging. If the input power is AC, the charger will convert it into DC through a rectifier.
Rectification and filtering
A rectifier (such as a rectifier bridge) converts AC into pulsed DC, and then smoothes the current through a filter (usually composed of capacitors), removes fluctuations and noise, and makes the output more stable.
Control circuit and charging algorithm
The control circuit inside the charger monitors and controls the charging process through a specific charging algorithm. The charging algorithm adjusts the charging current and voltage according to factors such as the type, capacity, and health of the battery to ensure the safety and efficiency of charging.
Power transmission and charging control
The control circuit converts the input power into power suitable for battery charging and dynamically adjusts the charging current and voltage. During the charging process, the control circuit continuously monitors the battery's voltage, current, temperature and other parameters, and adjusts them as needed.
Charging completion and protection mechanism
When charging reaches the preset conditions (such as charging time, battery voltage, etc.), the charger will automatically stop charging and send a prompt signal. In addition, the charger is also equipped with overvoltage, overcurrent and temperature protection mechanisms to prevent damage to the battery and charger.