Why do UV lamps need electronic ballasts?

With the continuous expansion of the application field of ultraviolet germicidal lamps, in order to maximize the use of ultraviolet lamps, the current ultraviolet lamps

Equipped with a special electronic ballast, which greatly improves the intensity output of the UV lamp. Do you know the role of electronic ballasts in ultraviolet germicidal lamps?

Are there any considerations for the choice of the flow device?

1. What is a UV germicidal lamp ballast?

Ballasts, simply put, are metal conductive coils that operate at low or high frequencies. Because the thermal inflection of the coil is small, it is compared with the resistance.

effect. It can play the role of limiting current and generating instantaneous high pressure.

It appeared first, and the structure is relatively simple. The sensor ballast is used to light the gas discharge lamp with the inductive reactance of the inductance and the self-inductive electric pad.

The gas that wears the light tube starts the light tube, and the inductance limits the current of the light tube to prevent it from burning.

The advantages of large numbers are high, and the service life of the ultraviolet germicidal lamp is greatly prolonged. Traditional magnetic ballasts are gradually replaced by dedicated electronic ballasts, although the cost

It has improved, but in the long run, its potential economic benefits are very considerable.

2. The role of ultraviolet germicidal lamp ballast

(1) High pressure is generated, and the starting lamp tube breaks the rare gas in the lamp.

(2) After the germicidal lamp starts to glow, it acts as a ballast (current limiting), so that the lamp can work normally and stably.

Gas discharge lamps have high starting voltage and low discharge sustaining voltage. When the lamp is started through high voltage, the voltage drops and the current increases.

The lamp current will continue to increase until the lamp is burned, so it is necessary to connect a ballast that matches the type and specification of the lamp in series to the lighting port of the discharge lamp.

The controller provides a high starting voltage to start the lamp and limits the lamp current to stabilize within the specified range.

3. Precautions for using ultraviolet germicidal lamp ballast

(1) Instant start VS. Delay start

When matched with low-power lamps, the impact is not very obvious, but when matched with high-power ultraviolet germicidal lamps (such as 120W, 150W and 320W, etc.).

Instant start has a great impact on the life of the UV lamp. This is caused by the dry ultraviolet germicidal lamp when starting, the required starting current is very large, and it is easy to hit

Through the lamp tube, and delay start, reduce the instantaneous pressure through energy storage, and play a better role in protecting the lamp tube.

(2) Select the adaptation

Be sure to select the appropriate model. Since the core function of the ballast is to protect the ultraviolet germicidal lamp and prolong the service life. If the ballast selected

The parameters of the lamp do not match, and both parties are victims.