What is a LED Circuit?
The simple definition explains that a LED circuit is an electrical circuit using LEDs (light emitting diodes). The circuit implies the use of a voltage source connected to a resistor that reduces the voltage. The resistor is also connected to a LED. As well, this simple LED circuit can also be provided with switches or sensors that never affect the functioning basic principles. The LED material is treated so it emits light photons each time the current passes its mass.
Using the LED Circuit
You can use this circuit to create many devices. Starting with simple ones, composed from only one or two LEDs, soon you can create complex circuits composed from many LEDs. As well, you can use for circuits simple or flashing LEDs. The only inconvenience is that flashing LED’s rate cannot be controlled. In spite of this inconvenience, the flashing LEDs are actually more attractive being widely used. At the same time, each LED circuit can use alternatively flash LEDs. Below you are able to find the most common circuits.
- Crossing signal especially created for railroads models
- Safety blinkers used for bicycles
- Halloween decorations
- Christmas decorations
- Blinkers for locating items in the dark
Basic Things about LED Circuit
LEDs are energy efficient, robust, reliable and cheap devices. LED circuit is actually the base of many complex electronic devices. Using a LED driver circuit, the professionals are able to create different features for modern appliances or automobiles.
These circuits use simple diodes specially made to allow electrons flowing in a particular direction. This thing is possible by connecting the semiconductor metal part of each LED, known as junction. The LEDs are connected between each other and with different elements by using a LED circuit board. Anyway, before using LEDs for any circuit, make sure that you use a LED tester.
The Importance of Using the LED Tester
Using a LED tester is a very important aspect as it might save you a lot of time, especially when you create a complex LED circuit. The LED tester allows you to test each LED so you can use only the ones that work. This way, you are able to avoid wasting time and not using broken LEDs.
The LED Circuit and Excessive Voltage
This is another important problem to consider when making a LED circuit. It is a mandatory thing to use the proper voltage. In case that you fail doing so, the circuit is going to be damaged. You have to use the appropriate resistor so it reduced the voltage to the optimum value. Anyway, in case that somehow it still happens to use a higher voltage, you have to reuse the LED tester and recheck all LEDs. This thing shows you the LEDs that need to be changed.
Placing the LEDs
Whenever you want to make a LED circuit and after using the LED tester, it is crucial to place the LEDs respecting the polarity. The electrons have to pass from cathodes to anodes (cathodes connected to negative pole and anodes to positive ones) and not vice versa. In case that you do not pay attentions and place the LEDs on wrong ways, the device is not going to work. This is why, in order to get it right from the first time, you always have to pay attention and respect the guidelines.