This buck converter came up in another thread. Here is a new thread for it.
It's a variable step down, specs say 20A. It has a UART and is programable via modbus.
There are probably a hundred different vendors, here is one:
https://www.amazon.ca/BUZHI-XY-6020L-Adjustable-Stabilized-Step-Down/dp/B0C5DF785V/ref=sr_1_4?crid=288769LQ1DPQY&dib=eyJ2IjoiMSJ9.hAYyQqOejdwDqW5TNUaouwOQ6F_XZywVbnwXw5ok0hkawXSmNsP4WwIZr1nq-FzWWz387HqN1S38HjmVatQT2kE4IuKdMbIHZCMHQt4BRcz2sAExCEVi3snwjMpsHgDeBDiBpYqDXwHMGDToUxudfQ.TeFR2T_ztBSi_jak03IDtbz7zu3zUJCyJmSYY3pEfwQ&dib_tag=se&keywords=xy+6020L&qid=1718215772&sprefix=xy+6020l%2Caps%2C66&sr=8-4
Link to Arduino library:
XY 6020L library (https://github.com/Jens3382/xy6020l)
I use it to step down my 24V battery to 12V which I use for various things.
They are only $25 on aliexpress. Tempting but I don't know what I would want to remote control via power supply .
Larry
Quote from: ClassicCrazy on June 12, 2024, 07:01:35 PMThey are only $25 on aliexpress. Tempting but I don't know what I would want to remote control via power supply .
Larry
Add a microcontroller and program a poor man's MPPT... As long as your PV array voltage is < 70V.