The Principle of Halogen Working

Halogen is late eighties successfully developed a new type of light source. It has a high luminous efficiency, small size, light weight, long life and other characteristics.

To make this small volume, high luminous efficiency light source is effectively a new application, the researchers turn into one kind of small halogen bulb made ​​of quartz glass with cold cup. The shape shown in Figure 2-8-2. The quartz glass halogen bulb cold cup and a combination of light called "quartz cold spot" (commonly known as cold light source, or cold light). It has a cold. Light into a beam angle of cold cup can
choose according to need, with a range of functions. Ordinary incandescent match.

Therefore, this light spotlights widely used in store mall counters. Windows for illumination and lighting effects.
Recent years due to the improvement of people's living standards, living conditions continue to improve. EL lighting decoration in the home has become increasingly popular. To enable people to live and work life, EL lighting is also widely used security products.

As cold working voltage spotlights are low voltage, 6V, 12V, power 20W, 50W, so in actual use step-down transformer must be used, generally 50W, 12V inductive transformer its large size and weight too, should not be in the mall lot of use. For this reason, scientists have launched an electronic transformer, which is characterized by: small size, light weight, low cost, easy to use and so on. Disadvantages are: electromagnetic interference (can increase its interference absorption circuit absorption). Electronic transformer circuit diagram: (12 * 8cm)
Working principle is basically the same, and electronic ballasts that the output voltage is reduced by the ferrite transformer isolation to the point of contingent Designed 12V.


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