Body Electrical System

Headlamps Description and Operation

4steps
~24min
2/5difficulty
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Description and Operation

HIDDEN Headlamp

  1. Lamp
    1. Components: Xenon Gas: Xenon gas provides the initial reaction for quick illumination. Molybdenum Electrode: Anode spark. Metal Halide Salts: Color-forming component.
    2. Lighting Principle: When xenon gas and metal halide salt discharge molybdenum anode in the capsule, it emits light.
  2. The igniter (A) is an electromagnetic transformer that receives current from the ballast and supplies high voltage to the light source to start the arc in any environment.
  3. Ballast
    1. The ballast (A) supplies an instantaneous high-voltage pulse to the igniter electrode to initiate the discharge in the source.
    2. The ballast provides stable power to the lamp and igniter during initial startup and normal arc condition.
  4. Stability
    1. Vibration resistant, since there is no filament.
    2. Does not operate if polarity is reversed.
    3. Does not operate if input voltage is not within the range of 10-16 V.
    4. Does not operate if the circuit is shorted.
    5. Does not operate if the bulb is burned out.

Test yourself

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