A charger is usually a device that converts alternating current to low voltage direct current.
Charger is widely used in various fields, especially in the field of life is widely used in mobile phones, cameras and other common electrical appliances. The charger is a kind of static current transformer which USES power electronic semiconductor device to convert alternating current with fixed voltage and frequency into direct current. Chargers have a wide range of application prospects in battery power supply or standby power supply applications.
Below is the schematic diagram of a charger composed of BG602.