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karimoviç , 01-25-2021, 01:13 PM

Hello , now it's my first time to work in pcb board that shouls be supplied by 220V AC directly . than the board have second part that have a MCU and some low power component , so i should have 5V in my board . can someone help me how i get the 5v DC from the 220V AC (without using a transformer) ?? i
ideally i want a recommanded circuit or component that can convert 220V AC into 5V DC .

robertferanec , 02-01-2021, 02:11 AM

I have never done that, so I can't really help. In this situation we always buy adapters.

Maybe someone else can help?

qdrives , 02-05-2021, 04:08 PM

Protection requirements?
Current consumption?
Efficiency?

kazemiy974 , 02-26-2021, 09:49 AM

Hello, you can use Pi Expert software for design your power supply,TI site also has an online power designer , but in similar cases I usually use HI-LINK board mounted Adaptors,you can see a sample of this module in link below:

chitransh92 , 03-07-2021, 11:35 AM

karimoviç ,
You can do this..
There are times when the off the shelf power supplies are not good enough and it is better to create a rectifier circuit with several protection schemes (Depending on you spec)

Simply putting..
- Input protection and filter circuitry
- You can use a rectifier of appropriate capacity.
- Use a DC DC converter (Isolated or Non isolated)
There are several methods for this as indicated by @kazemiy974


Thank you.