It first converts the low rated voltage into the high rated voltage, and then controls the high rated voltage through the control circuit to adjust the output DC voltage.
The main electronic components are transformer, filter capacitor, switch module, constant current resistor, etc.
When the transformer works, it can convert low AC voltage into high voltage; The filter capacitor can filter out tiny pulses, suppress electromagnetic interference and ensure the stability of alternating current; The switch module adjusts the output voltage and controls the current and voltage through the switch as needed; The constant current resistor can adjust the output voltage.
Switching power supply is widely used. They are usually used to supply power for photovoltaic power stations, radio stations, instrumentation, industrial control, household appliances, lighting systems and other electronic equipment.
In addition, switching power supply is generally used to replace the traditional DC power supply because of its low noise, high reliability and high efficiency.