I have a project where I have lots of 24volt AC power and need 5 VOLT Dc. Found this goody and thought it might help others. The drawing shows a battery but I intend to snag the voltage off my transformer ( which has an overload breaker and voltage regulator )
Woops. I just re-read your post. I go back to my AC comment. I don’t think the DE-SW050 can take an AC signal and turn it into a DC signal. It isn’t mentioned anywhere on the datasheet that it can. You will need a rectifier or some kind.
Thanks for the comments. As noted my POWER supply is 24volts AC not DC I am hoping to use this to power my core. See any reason why the device I found wont work?
Thanks for sharing more links
My power supply is 24volt because I am building on an existing device.
Update: BOO on 5 volts AC not DC!!! Thanks for checking more closely.
to go from AC to DC is pretty simple, all you need is a bridge rectifier, there a 4 terminals on them, ~ + ~ - the + and - are the DC output and the 2 ~ are the ac input, they are super cheap and should only be a few cents, here is a search page from my local supplier Jaycar. but you will find them almost anywhere… the 1.5A should be fine for most things and you could probably get away with the 1A DIP one if your just powering the core through a step down converter. You will probably need a capacitor or three on the output of the bridge rectifier too, as you will get a fair amount of ripple on the output which may cause the step down converter to get hot or not work properly.
I was trying to think of where i saw a good example of 24vac to 5vdc… then i remembered about the open sprinkler project. the standard transformer for a reticulation timer/valve is 24vac
Awesome I will go give it a read. FYI I have a strong programming background and work in a mechanical field but my electronics skills are limited So I have tons to learn and during my prototyping I am trying the KISS method as much as possible.
@Hootie81 and @harrisonhjones checkout this one. AC to DC with voltage regulation down to 3volts AND its $2. Still bigger then I want but a step in the right direction.
Thanks for noting it all @harrisonhjones my only concern at this point is its coming from China with probably no approvals and might be a fire trap lol.
Although for $2 its better then anything I could ever build.
Sadly I don’t see the rectifier which is required to do the AC to DC conversion.
The eBay item will definitely not have any approval and quality can indeed be dodgy. If time is not a huge issue you could always grab the cheapo ebay item you posted and then just build a copy yourself using legit components. It won’t be “approved” but at least you will know the quality of the parts. Shouldn’t be too hard…
The bridge rectifier is the bit that does the AC to DC, its an inline type, the black bit closest to the input.
I would have no issues using a device like that, although i would do some testing with other devices before hooking it up to a core. And make double sure the voltage output is set correctly and within the core limits before hooking it up. A bit of nail polish may help stop the adjustment screw being bumped and going out of tolerance (just make sure its not the glittery type )