In some electronic ballast a fuse is used instead of a series resistor. The next comprises a simple two transistor cross coupled oscillator stage. When an instant start ballast wired in parallel operates multiple lamps in a circuit the lamps operate independently of each other.
It is connected to limit the overload and short circuit current.
After that filtration of this dc voltage is done by using capacitor configuration. This resistor has a very low value up to 22 ohm. After that filtration of this dc voltage is done by using capacitor configuration. When an instant start ballast wired in parallel operates multiple lamps in a circuit the lamps operate independently of each other.
