[Dprglist] Any recommendation / favorite 3A buck converter for an RPi4?

[Anderson, David]

Paul,

These are a little pricier but I've had good experiences with these on mobile robots.   They are made for the R/C market and are quite robust.  They even offer a water-proof package!

https://www.amainhobbies.com/castle-creations-10-amp-adjustable-bec-cse010-0004-00/p18210?gclid=EAIaIQobChMI2_PEktuegwMVGXR_AB11FA99EAQYAyABEgL4mPD_BwE

The company is Castle Creations:    https://home.castlecreations.com

These are for the R/C market and they call these BECs for Battery Eliminator Circuits, left over terminology from the Before-Time.

cheers!
David


On 12/20/23 12:45 PM, Doug Paradis via DPRGlist wrote:
Paul,
    Here is another one to consider. https://www.amazon.com/Protooma-Voltage-Converter-Waterproof-Transformer/dp/B0B1PF1KSG/ref=cm_cr_arp_d_product_top?ie=UTF8&th=1
It says max voltage for 24v system (golf cart), but I am not sure what the alternator output voltage would be (~28V?). See review by paradug.
Regards,
Doug P.

On Wed, Dec 20, 2023 at 11:58 AM Karim Virani via DPRGlist <dprglist at lists.dprg.org<mailto:dprglist at lists.dprg.org>> wrote:
idk what's inside it, but this one has worked well for me:
https://www.amazon.com/gp/product/B01M03288J/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1


On Wed, Dec 20, 2023 at 10:24 AM Paul Bouchier via DPRGlist <dprglist at lists.dprg.org<mailto:dprglist at lists.dprg.org>> wrote:
I need an adjustable buck converter to produce 3A @ 5.1V from a 28V battery for an RPi4. (The golf-cart 24V->5V converter I put in Mowbot doesn't produce quite enough volts and I keep getting low voltage / performance throttled warnings from the RPi.) I see Amazon has a bunch of vendors selling LM2596-based converters. Do they work well? Any advice from those with experience is welcome.

Thanks

Paul

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--
David P. Anderson
Sr. Systems Engineer
Huffington Department of Earth Sciences
Southern Methodist University
davida at smu.edu<mailto:davida at smu.edu>
ofc: 214 768 4290
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