power supply

Status
Not open for further replies.
A

aaronik19

Newbie
Joined
Aug 30, 2022
Messages
1
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
13
Dear All,

I would like to design a power supply with an input of 12-230VAC/DC and an output of 12V 100mA (approx.). This design is similar to din rail time relay. Can someone help me since I can't find information from where I can start?
 

Sort by date Sort by votes

Upvote 0 Downvote
Your task is easier if you design it to run from the usual power source available to you. Is it 230VAC? A popular way to go is:

* step-down transformer
* full diode bridge
* smoothing capacitor.

All components might be scavenged from a discarded clock radio or appliance. You might find you can simply use its power supply as is.
 

Upvote 0 Downvote
Again, the OP is asking for an AC/DC input. A transformer will not work.

Further, even if it were AC-only input, the 12-230 volt input range is a problem. A simple transformer/bridge will not work. There needs to be some way of dealing with the huge input range. Some kind of buck/boost regulator.
 

Upvote 0 Downvote
I would like to design a power supply with an input of 12-230VAC/DC
Click to expand...
Please confirm that you want 12-230VAC and 12-230VDC as inputs? That would be unusual.

I suspect you mean you want an offline PSU that has 120-230VAC input...and gives a DC output, that being 12V, 100mA?
 

Upvote 0 Downvote
Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…