• Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

110V ACDC PCB - change to 220V


New Member
hi, I have the PCB for an air purifier (ie basically it's a DC fan) which does the AC/DC conversion.
I've attached a picture.
There are 2 versions of this PCB, a 110V and a 220V.
My version is the 110V, but I'm in Europe, so I'd like to change that to 220V.
Seeing as there are only a few elements in the PCB I figure it's simply a matter of replacing one or two components.

Can anyone help me? Ie which part(s) do you think need to be replaced?




New Member
Thanks for your suggestion.

I don't have a Walmart near me - I'm not in the US. The ones I found here cost around 20€ and from the user reviews I've seen on Amazon they usually don't last long and can be a fire hazard.

Also, it's more inneficient.


Well-Known Member
Most Helpful Member
Can you provide us with a another JPEG (same dimension) of the reverse side of the board?

It would allow an examination of the circuit and an estimate of any possible changes that might meet your goal.

EE World Online Articles