Schematics for AC-DC 24...240V input to 12Vdc power supplay 30mA

Thread Starter

girafa

Joined Oct 5, 2018
35
Hi,
I'm looking for a schematic of a power supply for AC-DC 24...240V input to +12Vdc output. My circuit have a max. current abaut 30mA.

Does anyone have one that they can send me?

Thanks
 

Dodgydave

Joined Jun 22, 2012
10,508
Sounds like you want a Buck type psu for 24V to 12V if you want to input 240V AC then your'e looking at a switchmode type.
 

Thread Starter

girafa

Joined Oct 5, 2018
35
Sounds like you want a Buck type psu for 24V to 12V if you want to input 240V AC then your'e looking at a switchmode type.
Yes, From 24V ... 230VAC DC to 24 or 12Vdc. Is a multi-tension switchmode power supplay type.

I found the LT8316 but it appears to be for Current most elevated.
 

Papabravo

Joined Feb 24, 2006
19,309
Yes, From 24V ... 230VAC DC to 24 or 12Vdc. Is a multi-tension switchmode power supplay type.

I found the LT8316 but it appears to be for Current most elevated.
So you can have a bridge rectifier that will take either an AC or DC input and build a buck converter to output 24V or 12V. There are safety issues involved with constructing an offline supply, but other than that what you want seems doable.
 
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