During broad day light the solar panel produces the required amount of voltage which is applied across the rechargeable battery via the 1n4007 diode and the resistor r.
Solar panel dusk to dawn circuit.
In this circuit the solar panel charges up a 3 cell nimh battery 3 6 v.
Between the two is a reverse blocking diode.
Solar charge controller 12v 10a for street lighting system dusk to dawn pwm charge controller is a low cost reliable product for use as solar street lighting system dusk to dawn opeartion.
Battery voltage 12 v 2.
Selecting the current limiter resistor.
The product is for use with single 12v battery and can give charging current upto 10a 150w solar panel.
Solar streetlights can be easily integrated with a dusk dawn controller by simply employing a pnp transistor and a few resistors where the solar panel itself works as the sensor.