Close

296 Results for "MPPT"

  • Additional Considerations

  • The PCDB1910 met most of the minimum requirements with copious jumper wires installed. Most importantly, it proved that it was possible to DC charge the vehicle without damage or constantly setting the “check engine” light. My experience...
  • Airwave Inspector

  • Power Supply First the requirements: DeviceVoltageLoadPC12V200W Max (~30W at idle)Kraken SDR 12V/24V (USB)12WScreen5V (USB)5W Over-provisioning to 300W at 12V means I should expect to draw less than 25A, and at 24V just 13A. Since I want to be able...
  • Current sense with micro, and battery heater

  • I got a FRDM-KL27Z development board to be able to test some things in the design before committing to them in a PCB layout.  Initially I had intended to use this to build and verify the complete charge buck converter, but that was before I realized...
  • Power Generation Stage 2.0

  • As this log entry says, I am now upgrading the current power generation setup. Please find below the goals for this stage: Aluminium pinion and spur gear manufacturing.Aluminium motor bracket.Explained power generation circuit. So, why Aluminium...
  • Solar Monitoring System (SMS)

  • This project was born from a real world need to send data from my rooftop solar PV system back to my home server so I could keep a track of how the system was performing.   Datalogging the output on a minute by minute basis was easy enough, however,...
  • A new version!

  • So a few months back the PQ60 Standard group published a new PQ60 standard that redefined the board sizes and pin maps. This of course meant I needed to redesign my board so as to maintain comparability.This time, with specific figures for how much each...
  • materializing...

  • Well I guess things started taking shape especially after some Easter work. I have made a lot of trials and errors and made some changes to parts and overall system design. Will try to note down my mistakes, what I have learned and decisions made. Hope...
  • A Small Mistake Goes a Long Way

  • I got the PCBs back and started soldering. The power rails (LDO + Charge Pump) and connection to the MCU seems to be working just fine.All seemed to be going well until I reached the point where I wanted to add in the makeshift current sensor. I used...
  • There's Always a Penny to Pinch

  • According to my Bill of Materials (BOM) from my last project post, building up a board cost about $6. That's good, but I can do a lot better. It's time to penny pinch (the person below has mad pinching skills).I'm loosing a lot of money on capacitors:...
  • 12V UPS

  • The main body of the UPS provides power management and voltage conversion only, relying on external power sources to supply between 7 and 32V DC. This gives me a lot more flexibility to expand the batteries as I salvage them from other UPS's, or do maintenance...
  • Suparcaps and Math

  • Just as predicted last project log, the supercaps arrived!I soldered one of the 2.7v/5F caps onto the board, then setup the solar panel under the halogen light source ( because night time). I connected the multimeter up to the positive terminal of the...
  • back from the dead

  • A few weeks ago the box on the hill stopped transmitting. A walk up the hill revealed a slight amount of water ingress to the box (but not touching electronics), a healthy solar panel output, but a dead microcontroller.Readings on the solar charge controller...