Fluorescent Lamp Starter Circuit

An electronic starter for long fluorescent lamps.

Fluorescent lamp starter circuit. The back emf of choke creates momentary high voltage. The starter triggers the kicks the choke needs to create back emf. The classic fluorescent lamp design which has fallen mostly by the wayside used a special starter switch mechanism to light up the tube. Voltage fed half bridge quasi resonant lamp ballast startup circuit shown shaded grey figure 3.

Starter on a fluorescent lamp consists of a small glass balloon filled with noble gases. The wiring process of fluorescent tube lamplight with ballast starter is quite easy and simple. Fluorescent starters are used in several types of fluorescent lights. The starter is there to help the lamp light.

The capacitor c draws energy from the mains. When sopens again at the instant that c is charged up the voltage surge produced by the reso nance ofthecircultljcts sufficient. Inside the bubble there are two metal electrodes as dual filament. You can see how this system works in the diagram below.

310 application note figure 2. When switch s closes this energy ispartly dissipated by the resonant circuit l2c in the electrodes ofthe lamp. When the starter is there to help the lamp light. Start up of the voltage fed ballast.

Lets hack and explore together the components inside a neon lamp external starter the capacitor in old fluorescent starters is for emi suppression. To generate momentary high voltage a choke is used. This post fluorescent light wiring diagram tube light circuit is about how to wiring fluorescent light and how a fluorescent tube light works. When voltage is applied to the fluorescent lamp heres what happens.