What are the important components of power adapter?

What are the important components of the power adapter? It mainly includes the following 9 aspects:

1. The power adapter high-power switch tube is one of the core components in the switch Power Supply. The switch power supply can work "one on one off", and the switch tube work is indispensable.

2. Power adapter fuse, standard is 2.5a/250v, when the current in the circuit is too large, the fuse will be blown to maintain other components, so as to protect the power safety.

3. The secondary filter capacitor plays the role of filtering out the ripple in low-voltage DC.

4. Filter capacitor is used to filter out the AC ripple in DC and make the circuit work more reliably.

5. Varistor, whose function is that when the external voltage is too high, the varistor resistance value quickly becomes very small, and the fuse in series with the varistor is blown, so as to protect other circuits from being burnt.

6. The main function of inductance coil is to reduce electromagnetic interference.

7. Pwmic (integrated circuit), an important part of driving switch tube and voltage regulation.

8. Secondary rectifier, which is used to change low-voltage alternating current into low-voltage direct current.

9. Temperature probe is used to explore the internal temperature of the power adapter. When the temperature is higher than a certain set value (different power adapters have slightly different set temperature thresholds), the maintenance circuit will block the voltage output of the adapter, and then the maintenance adapter will not be damaged.

Best regards,

Shirley Liang