JLCPCB Prototype for $2(Any Color): https://jlcpcb.com
NOTE: Winners have been chosen and notified - thanks for all the awesome comments 🙂 I picked a young person, an old person, people from UK, USA, Italy, Germany, Patreon patrons (extra PCBs allocated to them) and a person who commented on the PWM5's low power consumption, which I'm particularly proud of.
Through hole version of my PWM5 solar charge controller for 12V lead-acid batteries and solar panels up to 100W. Want a PWM5 kit? Buy from John Nodge on eBay. Search for "PWM5 Pico Solar". PWM5 MInature (Pico) High efficiency Solar Charge Controller Kit. https://ebay.us/7scqAB
Schematic and PCB design here: https://easyeda.com/julian256/pwm5-thru-hole
NOTE: Winners have been chosen and notified - thanks for all the awesome comments 🙂 I picked a young person, an old person, people from UK, USA, Italy, Germany, Patreon patrons (extra PCBs allocated to them) and a person who commented on the PWM5's low power consumption, which I'm particularly proud of.
Through hole version of my PWM5 solar charge controller for 12V lead-acid batteries and solar panels up to 100W. Want a PWM5 kit? Buy from John Nodge on eBay. Search for "PWM5 Pico Solar". PWM5 MInature (Pico) High efficiency Solar Charge Controller Kit. https://ebay.us/7scqAB
Schematic and PCB design here: https://easyeda.com/julian256/pwm5-thru-hole
It’s interesting that you’ve sold 900 of those. I’m experimenting with a couple of designs I might try and sell. It’s hard to estimate what the market is though.
yay
Hi Julian, Where can I download a copy of the code for the PIC12F683. Thanks
I would love to get a hold of a few of these through hole kits. I tried the ebay link but it's not working. I work a small farm and these would work perfect for solar lighting around the property!
IGot to this video in your instructional lineup of videos quite late in the game but have been thinking about your PWM Solar Charger with a 12V AGM battery converted to an alum based electrolyte. Any thoughts? If, need be, I'll wait for Ver.2 and continue with the KKM, aka 'kite-key modulated' setup.
what about using IN4007 diodes instead of those small diodes.
Can I please have one it would mean the world. I know i am in South Africa but I would like to use it in a green house project.
Julian, I am new to electronics. I have watched your projects learning at the same time. After retiring its my goal to understand this complex world and whats involved to get things to work. I have taken on projects as a practical method to gain experience and knowledge. I would love to have one of your boards to get it to work. What a challenge. Greg
Well I fear I may be a bit late to this (just got back after a week away) however i would love to build up one of your PWM5s. I started following you and getting in to solar around the time you stopped production, so was not able to but one from you..I had considered buying a 3rd party copy from eBay but i really wanted the genuine article. I have a few solar panels however want one of these for a small standalone panel and SLAb I have squirreled away which I want to use for a phone charging station in the house (My main larger panel and battery bank is some distance away in my workshop). I'd considered doing a similar 'low tech' solution as your front light to the remote SLAb but cabling for me would be a nightmare and I also would then never find a use for this little panel I have! Keep up the good work!
shouldn't the big FET be folded the other way so the aluminum part is more exposed for cooling?
why would you expect transients from the solar panel though?
Hi Julian I am new to your channel but I am a regular viewer. You are helping me learn alot. I am currently doing a project for the EPE magazine. I would be so happy to play around with one of your boards! Thanks for the vids.
Peter from Liverpool
Yes please!
Would the PWM5 be suitable for charging a small 12v SLA from a car cigarette socket (linked to ignition)?
Lots of people already asking about the free board. I would be happy to pay for one (and postage), especially if you could include the programmed micro controller. The production PWM5 I bought is still doing a stellar job in the generator shed keeping the lighting battery charged up. I always have light in there when I need it and the old car battery that powers this setup hasn't dried out. I have a second hand Trojan battery in my main power setup that seems to use a little too much water, I think a PWM5 on that to look after it could help as they seem very gentle on the batteries.
I don't want a board thank you.
Do you think this would work to charge asmall 12v LiFePo4 batt bank , maybe with a buck converter before the controller?
Could it carry more current with heat sinking? And could it easily be built for higher current?
i want one as i live in the desert and its summer so we have full sun always sunrise to unset so will be good to try these out provided i manage to find a decent solar panel