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SolarPb

Status: Proposal
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May 11, 2013
solarpb01.jpg

Small Solar Charge Regulator for Pb-Accumulators

  • panel up to 50 W
  • load up to 150 W (240 W with suitable mosfet)
  • optional usb-power-charger (up to 2.5 A)
  • shunt regulation
  • hysteresis charge (no PWM)
  • battery low voltage protection, auto load off
  • load schedule, auto load on
  • auto standby, power save
  • lcd display
    - battery voltage + current
    - solar + load current
    - solar input in Ah, subtotal and total
  • led flash codes
  • calibration (stored in eeprom)
    - charge voltages
    - zero current
    - current correction
    - display contrast
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Images
board with additional power-USB-charger
with case mounted
left side: solar, battery, output terminals
right side: USB output, low/high power switch
Schematics
Software

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