Hello, first time here.
I am trying to make a small wind turbine that will illuminate some LEDs when it's in motion.
The generator makes plenty of power from maybe 50 rpm, but power output rises as the wind increases, and overpowers the LEDs. The range is 0 to 8 volts or so: I have not tested the amperage, but presume it to be quite low as the generator windings are 32 ga. If I wire the LEDs to run at 8 volts, I only see them light up in hurricane winds. I really want them on as soon as possible, but protected from higher voltages as the wind speed changes.
i figured a voltage regulator would be the solution, so I added an adjustible unit and used a pot on the adjustable leg to trim the high-speed output. This circuit works great to prevent anything over 2.5 volts from reaching my LEDs, but it brought another issue...it chokes off the low-speed output from my generator.
Now the generator output is ok going INTO the regulator, but much lower coming out, even at levels lower than I have the regulator set at. I was hoping that the regulator would let voltage pass through unchanged until it got to my pre-set max and then begin shunting.
I'm hoping that someone here has the answer. I'm new to electronics and it's easy for me to overlook what may be a simple fix.
Here's how I wired the regulator: I tried different values of resistor (1Kohm and 250 ohm ) and got the same results. To the left of the image is my generator, and to the right are my LEDs.
Thanks for looking
I am trying to make a small wind turbine that will illuminate some LEDs when it's in motion.
The generator makes plenty of power from maybe 50 rpm, but power output rises as the wind increases, and overpowers the LEDs. The range is 0 to 8 volts or so: I have not tested the amperage, but presume it to be quite low as the generator windings are 32 ga. If I wire the LEDs to run at 8 volts, I only see them light up in hurricane winds. I really want them on as soon as possible, but protected from higher voltages as the wind speed changes.
i figured a voltage regulator would be the solution, so I added an adjustible unit and used a pot on the adjustable leg to trim the high-speed output. This circuit works great to prevent anything over 2.5 volts from reaching my LEDs, but it brought another issue...it chokes off the low-speed output from my generator.
Now the generator output is ok going INTO the regulator, but much lower coming out, even at levels lower than I have the regulator set at. I was hoping that the regulator would let voltage pass through unchanged until it got to my pre-set max and then begin shunting.
I'm hoping that someone here has the answer. I'm new to electronics and it's easy for me to overlook what may be a simple fix.
Here's how I wired the regulator: I tried different values of resistor (1Kohm and 250 ohm ) and got the same results. To the left of the image is my generator, and to the right are my LEDs.
Thanks for looking