In this circuit the solar panel charges up a 3 cell nimh battery 3 6 v.
Solar panel circuit board.
This circuit uses the solar cell for dark detection this charges the batteries and turns the led on when the solar cell is in the sun or turns off the led when the solar cell is in the dark not charging the batteries.
This circuit requires only a single ni cd rechargeable battery to light up the white led for more than five hours depending upon the ampere hour ah capacity of.
This repair service is for a single axis solar tracker control board manufactured by first solar that has failed or is responding erratically.
The control board s control the motor s connected to solar panels that allow them to adjust their angle during the day to adapt to the sun s location.
When these boards fail there is often visible damage to the board.
Between the two is a reverse blocking diode.
This one way valve allows current to flow from the solar panel to the battery but does not allow current to flow backwards out of the battery through the solar panel.