The working principle of switching power supply:
Switching power supply is an indispensable part of various electronic equipment, and its performance is directly related to the technical indicators of electronic equipment and whether it can work safely and reliably.
Because the key components inside the switching power supply work in the high-frequency switching state, the power consumption is small, the conversion rate is high, and the volume and weight are only 20%-30% of the linear power supply, so it has become the mainstream product of the regulated power supply.
The maintenance of electrical faults of electronic equipment, in line with the principle of easy to difficult, basically starts with the power supply, and after confirming that the power supply is normal, the maintenance of other parts is carried out, and power supply faults account for most of the electrical faults of electronic equipment. .
Understanding the basic working principle of switching power supply, familiar with its maintenance skills and common faults, will help to shorten the maintenance time of electronic equipment failures and improve personal equipment maintenance skills.
