I would like to use the wind in order to generate variable voltage and use that voltage to effect other parts in the project. What shall I look for? Is there any low voltage wind turbine that outputting voltage?
Hello hk_jh
Take a view to get some ideas.
https://www.instructables.com/howto/wind+turbine/
Have a nice day and enjoy coding in C++.
Дайте миру шанс!
If you have access to a 3D printer there are lots to choose from.
Most use simple and cheap motors and are often low voltage.
To get you started here are some examples.
A simple voltage divider would enable you to keep the voltage low if you have higher than expected winds.
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What I don't understand is how to transform the work of the wind (generating energy) into a voltage I could use ?
I think most people use an alternator.
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or a motor as generator
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how do you use motor as generator?
edit: wait a second - if I turn a motor manually its Vcc+ wire will produce an alternating current in respective to its GND wire? so instead of using voltage/current to spin the motor - the manual spin of the motor will produce electricity?
DC current, depending on the direction of shaft rotation.
What do you mean by direction?
When the motor is moving in one direction I will have a positive DC current and if it will move in the other direction I will have negative DC current?
edit: another question:
What determined the amount of current and voltage the moving of the motor will produced?
If the motor is moving faster an higher voltage will be produced? how can I know the amount of current it can deliver?
The voltage is proportional to the motor speed. The current is limited by the motor winding resistance.
With a brushed DC motor, the direction of motor shaft rotation determines positive or negative voltage/current.
Speed of motor shaft rotation (RPM value) determines voltage.
Load and motor winding resistance determines current, from voltage and Ohm's Law.
A brushless motor or alternator will give pulsed, alternating current: https://www.atlantis-press.com/article/125953701.pdf
Those pulses can be smooth out for creating more stable dc voltage?
How much current and voltage I should expect from those type of motors
Approximately the same values as when they are being used as motors!
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What can I learn from the information in the picture below?
if the wind is strong enough to generate 3V I should expect max of 0.14A or 0.92A?
How fast are you going to turn them? 15000 RPM?
Lets start with, how much current, and at what voltage, do you need? Then search for the motor capable of producing that.
I'm not sure as it will depend on outdoor wind. the goal is to use that voltage to effect some audio circuitry