The electronic ballast circuit looks like

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The main elements of the electronic ballast of a fluorescent lamp: filters; the rectifier itself; converter; choke.

The circuit also provides protection against power supply voltage surges, eliminating the need for repairs due to this reason. In addition, the ballast for gas discharge lamps implements the power factor correction function.
According to their intended purpose, there are the following types of electronic ballasts:

for linear lamps;
ballast built into the design of compact fluorescent light sources.
Electronic ballasts for fluorescent lamps are divided into groups that differ in functionality: analog; digital; standard.

Connection diagram, start-up
The control gear is connected to the power source on one side france telegram data and to the lighting element on the other. It is necessary to provide for the possibility of installing and fastening the electronic ballast. The connection is made in accordance with the polarity of the wires. If it is planned to install two lamps via the ballast, the parallel connection option is used.

The diagram will look like this:

A group of gas-discharge fluorescent lamps cannot operate normally without a ballast. Its electronic design provides a soft, but at the same time almost instantaneous start of the light source, which additionally extends its service life.



Ignition and maintenance of the lamp is carried out in three stages: heating of the electrodes, appearance of radiation as a result of a high-voltage pulse, and maintenance of combustion is carried out by constantly supplying a small voltage.

Determination of the fault and repair work
If there are problems with the operation of gas discharge lamps (flickering, no glow), you can do the repair yourself. But first you need to understand what the problem is: in the ballast or the lighting element. To check the operability of the electronic ballast, the linear bulb is removed from the lamps, the electrodes are shorted, and a regular incandescent lamp is connected. If it lights up, the problem is not in the ballast.