How to distinguish between DC and AC ballasts?

The main differences between DC xenon lamps and AC output xenon lamps are as follows.

1.Costs are reduced by reducing the number of MOS tubes by eliminating the need for 4 MOS tubes and simplifying some of the control circuits.

2.DC ballast, the output is direct current, no frequency conversion is required, and 4 MOS tubes, strict requirements for consistent parameters, if inconsistent, it is easy to burn, therefore, relatively speaking, the failure rate is reduced.

3.DC ballast, you need to have a DC bulb to match, if you use an AC bulb, the bulb is easy to burn;

4.DC ballasts are not easy to break, but the life of the bulb is relatively shorter;

5.DC ballast, there is still a problem to be solved: in the process of lighting, there will be flickering, which is not solved in the short term, to be solved in the industry;

In the year, DC HID will become a mainstream product because of the further reduction of **.

The main differences between the two are as follows.

1 DC ballast, the output is DC.

No inverter is required, and 4 MOS tubes are required.

The requirements for consistent parameters are strict, and if they are inconsistent, it is easy to burn, so the failure rate is relatively speaking.

It was lowered. 2. DC ballast, need to have a DC bulb to match, if you use AC bulb, the bulb is easy to burn;

3. DC ballast, not easy to break, but the life of the bulb is relatively shorter;

4. DC ballast, there is still a problem to be solved: in the process of lighting, there will be flickering, which is not solved in the short term, and needs to be solved in the industry;

5 In 2009, DC HID will become a mainstream product because of the further reduction of **.

The stable point of DC, the AC is more stable, the domestic AC is generally used, and the most expensive point of AC has a relatively long life!

That's right to use the Duolutong brand, I tried to light the lights continuously for 2 hours, just a slight hand warmer, and its own low loss, it is estimated that it will be no problem for 10 years.

The ballast depends on how you use it, if it is a single plus xenon, it is simple, there are many cheap domestic brands, if you want to take into account the stable quality, you must choose a relatively large domestic manufacturer, if the requirements are high, you can buy imported car parts, but the price is relatively high.

If you change the bifocal lens, it is necessary to look specifically at what lens is installed and what bulb to decide the choice of ballast, the best is the original match is the most ideal, depending on the choice of the model and the lens bulb.

The domestic almost all of the ballasts are the best and cost-effective. The quality of the products is very good.

Multi-way Express Qiwang F3, F5, F7 is the best to use, and the starting speed is faster than import!

I believe that many friends who have changed the lamp have heard of the stabilizer, which is generally used in xenon lamps, so thisWhat is the purpose of a ballast? And why do xenon lamps use ballasts?

Unlike halogen lamps, xenon lamps do not have filaments inside, but are filled with inert gases including xenon for burial.

When the xenon attack or lamp is working, it needs to use a high-voltage current to activate xenon between the two electrodes, so as to form a beam of arc light, and continuously discharge and emit light.

But because the ordinary battery on our car is only 12V, it is far from the voltage that activates xenon. So, that's why xenon lamps need a stabilizerThe ballast can increase the car's low-voltage power supply to more than 20,000V when the power is turned on, which activates the xenon gas in the bulb.

When we are changing the xenon lamp, we should pay attention to:

Be sure to add a lens, if there is no lens, it will cause the light to diverge, and it is easy to affect the driver of the oncoming car.

Because there is usually a 5-second delay in the start-up of xenon lamps, if you only change one set of xenon lamps, try to change the low beam.

Ballast is an indispensable supporting part of the HID lighting fixture system, also known as electronic ballast, its effect is to increase the original 12V working voltage to 23000V voltage in an instant, using this high toughness working voltage to stimulate xenon bulbs in the middle of the two aspects to cause strong light, so that the bulb to achieve high brightness lighting fixtures.

The best installation site of the ballast must meet the following standards:

1. Avoid areas with very high temperatures such as automobile engine turbocharging and exhaust pipe head section;

2. Installed in areas with wide indoor space and excellent natural ventilation and heat dissipation, it is best not to have low fire points or things that are very easy to melt when exposed to heat;

3. Prevent touching the alloy components of the car body during installation, otherwise it is easy to have potential safety hazards of short circuit fault.

The best part of the hood is the underside of the bumper and headlights, and the wind entering the grille can deheat the stabilizer while the car is moving forward, thus reducing the risk of the stabilis. In addition, the ballast should not be installed far away, in case other power-consuming machinery and equipment endanger the normal work of the ballast. In addition, the ballast will also cause a strong electromagnetic field during operation, and the automobile cavity elimination motor and transmission ECU should be avoided as much as possible to prevent the impact.

Millions of car purchase subsidies.

The ballast has the functions of overpressure protection, no-load protection, short-circuit protection and so on.

The ballast is a necessary supporting part in HID, the volume of the ballast is very small, only a quarter of an ordinary computer optical drive, the ballast can make the voltage larger, so that the car bulb can achieve the effect of high-brightness illumination, the ballast is the most complex and high-tech device in the entire HID lighting system, and the quality of the ballast directly determines the performance of the whole system.

How the ballast works:

When the power supply of the car is turned on, the lighting of the xenon headlights can be activated through the transformer, and the transformer will be the scumbag we call the ballast.

There are two kinds of HID ballasts commonly used in automobiles, namely single ballasts and split ballasts, single ballasts refer to the combination of ballasts and high-pressure starters, and split ballasts refer to the separation of ballasts and high-voltage starters, and the working principles between them are different.

The working power of the HID bulb is 35W, and it is not possible to know that the power is too high or too low, and the power is too high will accelerate the aging of the HID lamp and shorten the service life.

In addition to the design factors, the service life of the stabilizer is also very related to all parts, mainly including capacitors, high-voltage packs and discharge tubes.

Millions of car purchase subsidies.

The ballast has the functions of overpressure protection, no-load protection, short-circuit protection and so on.

The ballast is a necessary supporting part in HID, the volume of the ballast is very small, only a quarter of an ordinary computer optical drive, the ballast can make the voltage larger, so that the car bulb can achieve the effect of high-brightness illumination, the ballast is the most complex and high-tech device in the entire HID lighting system, and the quality of the ballast directly determines the performance of the whole system.

How the ballast works:

When the car's power supply is turned on, the illumination of the xenon headlights can be activated by a transformer, which is what we call a ballast.

There are two kinds of HID ballasts commonly used in automobiles, namely single ballasts and split ballasts, single ballasts refer to the combination of ballasts and high-voltage starters, and split ballasts refer to ballasts and high-voltage starters, and the working principles between them are different.

The working power of the HID bulb is 35W, too high or too low will not work, too high power will accelerate the aging of the HID lamp and shorten the service life.

In addition to the design factors, the life cycle of the ballast is also very related to all the parts, mainly including capacitors, high-voltage packs and discharge tubes.