How can I have 12V and 5,5V?


#1

Hi guys,
i have a question. I have a SBEC that can make 5,5.5,6,7 or 9 Volts.
My receiver works with 5V so, I have my SBEC with 5V selected. I ordered a computer cooling system for the ESC with a 12V water pump. How can i have those 12V? Do I need another BEC?
Thanks,

PS: My batteries are S6


#2

You could run a step up converter from 5v to 12v into the water pump. Just as easy to install another SBEC. Just make sure it has a 12v option. Lots of people run two SBEC for similar reasons.


#3

hello
if you have a schema for your cooling , i am interested because it is necessary to put a vase of expension and how did you fill it ?


#4

We recently got one of these:

https://no.rs-online.com/mobile/p/isolated-dc-dc-converters/7065180/

It can take a wide range of input voltage and convert it to 5V and 12V. It also has some protection against stupid mistakes :slight_smile:

Super expensive (320 000h/36years lifetime) probably possible to find some cheap alternative on aliexpress or similar.


#5

Hi Phlilippe,
those are the items i ordered from Aliexpress:
https://pt.aliexpress.com/item/310mm-Cylinder-Water-Tank-G1-4-Thread-19W-Pump-Computer-Water-Cooling-Radiator-New-Computer-Water/32847354101.html?spm=a2g0s.9042311.0.0.3da2b90amwhvvy

https://pt.aliexpress.com/item/Cheap-80mm-aluminum-water-cooled-exhaust/32725050079.html?spm=a2g0s.9042311.0.0.3da2b90amwhvvy

https://pt.aliexpress.com/item/Barb-Fitting-Computer-Water-Cooling-Radiator-Copper-Heatsinks-Cooler-Clamp-For-3-8-ID-Turbing-G1/32761237958.html?spm=a2g0s.9042311.0.0.3da2b90amwhvvy

https://pt.aliexpress.com/item/Brass-G1-4-External-Thread-for-9-5-12-7mm-Computer-PC-Water-Cooling-System-Tube/32829999390.html?spm=a2g0s.9042311.0.0.3da2b90amwhvvy

The Water container is too big… i should have ordered a smaller one like this:

https://pt.aliexpress.com/item/SC600-140mm-Computer-water-cooling-cooler-Acrylic-cylindrical-transparent-water-tank-pump/32620236019.html?spm=a2g03.10010108.1000014.4.70c87e7eB8PUhe&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.13338.108277.000000000000000&scm_id=1007.13338.108277.000000000000000&scm-url=1007.13338.108277.000000000000000&pvid=8f6c22c2-8079-43fd-b049-125256f236f6


#6

https://youtu.be/D_GZR4VGF_E At 3:28 you can see how I solved this problem with a step down converter. Also known as buck converter.