Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

AC power down from 220v to 5v

Status
Not open for further replies.
H

hossam abdo

Full Member level 2
Full Member level 2
Joined
Mar 13, 2011
Messages
122
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,298
Location
Alexandria, Egypt, Egypt
Activity points
2,064
Dear all

Can i down the AC voltage from 220v to 10 volt without transformer,
Is there any device make this function?

thanks in advance.
 

Transformer-less PS:
ww1.microchip.com/downloads/en/appnotes/00954A.pdf

:wink:
IanP
 
  • Like
Reactions: dselec

    dselec

    dselec

    Points: 2
    Helpful Answer Positive Rating
@hossam abdo
What is important is the amount of output power required to be generate by this power supply. In order to choose the best solution you need to provide the necessary current for the 10V output.
 

Yes power power current ?
what is the load ? is isolated
talking cheap u can do that with a 250vac 1uf capacitor 50k resistor and 5.1 zener.
DO NOT DO WHAT I SAY IF ANY PART NEEDING ISOLATION, TELL US EXACTLY WHAT U ARE DOING.

also see transformerless power supply

Transformer-less PS:
**broken link removed**
posted by Ianp
 
Last edited:

Are you trying for an AC or DC output?
 

dselec said:
Yes power power current ?
what is the load ? is isolated
talking cheap u can do that with a 250vac 1uf capacitor 50k resistor and 5.1 zener.
DO NOT DO WHAT I SAY IF ANY PART NEEDING ISOLATION, TELL US EXACTLY WHAT U ARE DOING.

also see transformerless power supply

Transformer-less PS:
**broken link removed**
posted by Ianp
Click to expand...

what is the vac?
I want to design a variable Dc power supply but without transformer.

thanks to all for your interest.
 

Maybe u mean a variac.
what is your voltage range and current range ?
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top