I tried to make a simple boost converter circuit for driving an LED using 555 timer IC, but somehow the output voltage is not increased at all. I suppose that the problem is the inductor I used, since I was unable to find a suitable one (i.e. around 220uH) and I end up using a 33uH.
Can somebody help me to build a 220uH inductor, or help me find a solution regarding the boost converter not boosting?
I am supposed to give around 3V input and get at least 12V output.
The components I used are:
100uF 25V capacitor
10k variable resistor
Schematic source: Et Discover
The circuit diagram used is this. Also note that I used a 20nF capacitor with the 555 IC which, according to diagram, should be 100nF. Is this the problem or the inductor as mentioned?