In the present a small electronics invention. Most of these types of switching circuit. is…
An Inductor (or coil) is one device To create problems for me To buy or use. But it is only simply a wire wound into a coil and usually around ferrite core because they have high value and also small. I like to use it.
This is DIY inductor coil from Compact Fluorescent Light. I like free and enjoy creating odd things. A Compact Fluorescent Light Bulb is a device that uses high-frequency switching.So there is coil inside them. Therefore I will keep the Compact Fluorescent Light Bulb burned out. To apply an inductor from them as Figure 1.
When I make low current and a high-frequency switching circuit. I use a toroidal core that removes from the PCB. As Figure 2.
Suppose that we want to have the coil inductance is 100uH. as The High power 6 LED Flashlight for 1.5V AA battery project.Then we measure the inductance of it. It appears that the value is 200uH. To remove the wire to low as Video below then measure it again.
How to make inductor 100uH
Modify the toroidal coil into 100uH
Finally, we have the induction, according to need is 100uH. as Figure 3
Update: As I use wire 24 AWG turn on a 10mm toroidal coil is 10 times
Next, I test it on The High power 6 LED Flashlight for 1.5V AA battery project as Figure 4 it works as well same original parts.
I hope this way can help you save. And reduce global warming too.
Up to $20 shipping discount on first order now: https://jlcpcb.com/quote