Electronics > Beginners

I need help with my simple wind turbine, circuit provided

(1/2) > >>

kafor1:
im a very beginner at electronics so i went here.

i am given by my professor a circuit to work with my project that is converting a wind to electrical energy, so we are basically making a wind turbine

my materials was given below
1- germanium diode
1- 220 ohm resistor
1-3300 electrolytic capacitor
1 -6v dc motor
1- LED

the circuit was given at the picture below

im gonna explain what i found and what is my problem

so first i tried the circuit without the motor with my 9v battery (first picture) the movement of the circuit is it lights up and then dims then turns off. Then i added the  6v dc motor. since this is wind to electrical energy, i rotated the motor the led wont light up (i even put in in front of my fan) still wont light UP. SO here is my 2 problems FIRST IS that my LED wont light up my assumption is that 6vdc is too low?, The NEXT problem is whenever i tried connecting my 9v battery in the 2nd circuit (with motor provided, I connected it in the black circles) it wont light up my led anymore compared to first circuit. my guess is that maybe the motor absorbs the voltage of the battery? i really need help, what should i do to fix it?

tunk:
If you have a multimeter, maybe you could measure some voltages and currents.

mikerj:
You need to make sure you rotate/connect the motor so the the output polarity is correct.

Spin the motor with your fan etc. and measure the output with a multimeter set to DC volts, the motor terminal connected to the diode must be +ve.  If not then reverse the connections.

Does the motor spin when you connect up the battery to it (second digram)?  If not then the battery may be dead, i.e. it can supply enough current to light an LED but not spin the motor.

kafor1:

--- Quote from: mikerj on February 19, 2020, 01:53:27 pm ---You need to make sure you rotate/connect the motor so the the output polarity is correct.

Spin the motor with your fan etc. and measure the output with a multimeter set to DC volts, the motor terminal connected to the diode must be +ve.  If not then reverse the connections.

Does the motor spin when you connect up the battery to it (second digram)?  If not then the battery may be dead, i.e. it can supply enough current to light an LED but not spin the motor.

--- End quote ---

i made measurements during the rotation. it displays 0.3v , and yes the motor spins but the led doesnt light up, so does that mean that most of the voltage powered the dc motor and not the led?

kafor1:
i think i found the answer, i think i just needed to buy 9v or 12v dc motor to light up the circuit. and the problem of why my led doesn't light up is the motor gets all the voltage since it has lower resistance also my battery voltage is 8.2 maybe thats the case? correct me if im wrong

Navigation

[0] Message Index

[#] Next page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod