Are laptop/computer power supplies network filters?

Question

Iron

Good day.
Are power supplies for laptops / desktop computers also part-time surge protectors? And if so, how good? In other words, how much is the same laptop protected from a poor-quality power supply with multiple interferences and surges, which will burn out in the event of a sudden overvoltage - the PSU or the laptop itself?
Thanks in advance.

Answer 1

A good network filter is a lot of DIFFERENT devices.
No. The power supply does not protect against all problems. Although he tries.
In particular, I managed to achieve stable operation of a computer with a rather expensive high-quality power supply, but in a bad network, only when I plugged an uninterruptible power supply in front of it, and a stabilizer in front of the uninterruptible power supply, and lightning protection in front of the stabilizer.