Saturday, January 28, 2017

[Random Teardowns] YU4802 48V/2A power supply

Device: Cheap 48V 2A power supply (YU4802)
Origin: Aliexpress
Reason for teardown: Preemptive checkup
Impressions: Not bad for the price ($14 shipped)

Blue Power LED on top

⚡ RISK OF ELECTRIC
DO NOT OPEN !
Yeah, but if I don't it's still a risk due to being a 96W  $14 power supply for china so.... bring on the risk of electric.


Noname primary-side cap, mismatched screws on the TO-220s but the design doesn't seem to be too terrible at least
Based on UC3842 (datasheet)










3 noname secondary side caps, par for the course

I've seen way worse for the same amount of money.