The image on the right shows perhaps the most basic flyback driver that can be built. There are a few improvements that can be made though:
- Remove the 27Ω resistor, it gets very hot and also seems to limit the output voltage.
- Use a better transistor, the 2N3055 is not well suited for this.
The circuit can be powered by a 9V battery, but it will be weak and won't last long. It's better to use a RC battery pack or other rechargeable batteries. 12V is a good input voltage.
This article is a stub. You can help by expanding it