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How Does A light emitting Diodes Works? free Pdf ebooks

Now a days LCD must be replaced with LED due to its huge advantages compared to LCD
We cannot deny the fact that today's modern world level up to highest high tech technology.
You can download if want a free pdf file all about LED how its works, characteristic, its electronic formulas
and many more..


How to Work with Light-Emitting Diodes
An incandescent light bulb uses a filament made of tungsten to produce light.  Passing
electricity through the filament heats the tungsten that then radiate visible light and heat.
The amount of light this type of bulb produces depends on the voltage applied to it.


Nanoscale Organic Light-Emitting Diodes
OLED devices based on the electroluminescent ruthenium bipyridyl complex have received attention
because this molecule is an efficient and bright emitter.


LIGHT EMITTING DIODES
A Light-Emitting Diode (LED) in essence is a P-N junction solid-state semiconductor diode that emits light when a current is applied though the device. This is somewhat similar to the role of the band-gap because it determines how much voltage is needed to be applied to the semiconductor chip before the current can flow
and the electrons pass the junction into the p-region.


A Switch to Light-Emitting Diodes
 This report contains research and recommendations for the City of Santa
Barbara.  It is found to be a good time to make this lighting switch throughout the city
by providing vouchers in order to decrease the overall amount of energy consume.


Working with LEDs
The cathode is the short lead and there may be a slight flat on the body of
round LEDs. If you can see inside the LED the cathode is the larger electrode (but
this is not an official identification method.
LEDs are available in red, orange, amber, yellow, green, blue and white. Blue and white LEDs are
much more expensive than the other colors.

How LED Lights Work
Almost every electronic device including MP3 players, DVD players, TV's, clock radios and computers. LED's have been popular for decades, however today they are cheaper, brighter and come in more colors than ever before.

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