I have a 0.5w 6v solar panel, I hooked it up to my 1.5-3V DC Motor. The motor will not run.
Why not?
Why not?
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Even though the open circuit voltage may be over six volts, that voltage will fall when the panel is connected to a load. High resistance results in lower voltage. The amount of voltage drop will be inversely proportional to the resistance of the load. Apparently the resistance of the motor is so low that the solar panel voltage drops below 1.5 volts.
Another way of saying it is that the motor needs more current that the solar panel produces at 1.5 volts.
Hook up the motor and read the voltage at the motor terminals, to see what the loaded voltage is. If you add panels in parallel the loaded voltage will be higher
Another way of saying it is that the motor needs more current that the solar panel produces at 1.5 volts.
Hook up the motor and read the voltage at the motor terminals, to see what the loaded voltage is. If you add panels in parallel the loaded voltage will be higher
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Because 0.5 volts is not enough to run a 3 volt motor. And, the current may not be enough also, so when the motor is connected, the voltage is even less than 0.5 volts.
Try 6 cells in series to get 3 volts.
Try 6 cells in series to get 3 volts.