Comparing two LiFePo4 solar charging schematics
Budget: $10 – $30 USD
i need to design a efficient solar charger board for a LiFePo4 cell and i have found two promising schematics which should do the job.
Unfortunately i am just a hobbyist and i can't really find out which design is the better one.
Schematic 1 with description: https://oshwlab.com/wagiminator/y-cn3801-lifepo4-solar-charger_copy_copy
Schematic 2: https://d3s5r33r268y59.cloudfront.net/datasheets/9948/2017-06-28-22-40-16/LiFePO4wered-Solar1-CC-BY-SA.pdf
And the description: https://www.tindie.com/products/silicognition/lifepo4weredsolar1/#specs
Schematic 1 would be used without the 5V booster.
These are the questions of interest:
Which ones is less noisy?
Which one is more efficient?
And big differences i can't see?
Pros Cons of both designs.
Unfortunately i am just a hobbyist and i can't really find out which design is the better one.
Schematic 1 with description: https://oshwlab.com/wagiminator/y-cn3801-lifepo4-solar-charger_copy_copy
Schematic 2: https://d3s5r33r268y59.cloudfront.net/datasheets/9948/2017-06-28-22-40-16/LiFePO4wered-Solar1-CC-BY-SA.pdf
And the description: https://www.tindie.com/products/silicognition/lifepo4weredsolar1/#specs
Schematic 1 would be used without the 5V booster.
These are the questions of interest:
Which ones is less noisy?
Which one is more efficient?
And big differences i can't see?
Pros Cons of both designs.