MPPT Solar charger’s USB mass storage device bootloader project from Soldernerd, that is available on GitHub. Check out the video after the break.
Lukas Fässler has designed and built an MPPT solar charger: One of my main goals with this design is to archieve very low standby current, somewhere in the tens of microamps. The basis for this is a low-power buck on the basis of a Texas TPS62120 where the microcontroller can switch the output voltage between […]
Lukas Fässler made an MPPT solar charger project and wrote a post on his blog detailing its assembly: The basic idea behind an MPPT solar charger is simple. A solar panel has a certain voltage (in the region of 17 to 18 volts for a 12 volts pannel, somwhat dependent on temperature) at which it […]
Steve made this 6 volt 5 watt solar charge controller project, that is available at Github: Here is a 6 volt 5 watt solar charge controller project using a dedicated printed circuit board from dirtypcbs.com and an Arduino pro-mini. The board uses sot-23 low RDSon P channel mosfets (Si2369). It has voltage and current sensing, and 3 […]
Squonk writes about this scalable solar charger he’s located: An unconventional, scalable high efficiency 12V solar power system and battery charge controller with low voltage cutout to protect the battery. (ideal for systems of 50W or less). The most common solar charger consists of a Schottky diode to prevent the battery from draining into the […]