Peltier on a voltage regulator, TO BE or NOT TO BE

[richard]

i would suggest a google of Peltier efficiency before you go down that dead end path. you don't see Peltier's used to cool anything that is above ambient temp for good reasons.
you would need to apply 3w to a typical Peltier device to get 2w of cooling heat transfer that means you now have 5w of heat to dissipate.
The device you linked could never cope with the heat you need to dissipate either.

[amgen]

you have easier options..... 5 volt, 5 amps
-

[Ioannis]

Forget peltier.

What are you going to do with the extra heat that peltier will generate? You obviously will need a massive heatsink with fans to get rid of that heat, outside of your case. You can't do that within your enclosure for obvious reasons. Too complicated, too expensive, bad efficiency.

Things are simple. Do not complicate it.

Use either something like the above power supply of a reputable brand, or use bigger aluminum heatsinks. Or design your own SMPS for better control of the quality of the design.

Ioannis

[amgen]

This is an electronic intervention here for you!.....

[Demon]

Duly noted.

Forget about peltier.

[richard]

if you don't want excessive heat and or high voltage AC in your box

https://www.pololu.com/category/136/voltage-regulators

[Ioannis]

Nice regulators with wide input voltage, up to 50Volts. But salty priced too.

Ioannis

[Demon]

if you don't want excessive heat and or high voltage AC in your box
...

Very nice unit:
https://www.pololu.com/product/4091

But $24.95USD for a single unit is steep. Even at 100, it's still $19.43.

That SIC471 IC goes for $7.67CAD at Digikey:
https://www.digikey.ca/en/products/d...T1-GE3/9556545

Gonna look at google for a nice schematic; it might be worth getting a batch done at JLCPCB...

Those larger power suppliers for LED applications look like they could use a fan since I'd need to enclose it. That's gonna be too big and bulky.


EDIT: Have to reread Ioannis' post in another thread. I remember him sharing 2 designs.

EDIT SOME MORE: Found it:
https://www.picbasic.co.uk/forum/sho...544#post156544