Therefore, V S = 12V, V LED = 3.6V and I LED = 30mA. In our simple LED Circuit consisting of a single LED, we have used a 5mm White LED and a power supply of 12V.Īs per the datasheet of the 5mm White LED, the Forward Voltage of the LED is 3.6V and the Forward Current of the LED is 30mA. I LED is the desired current through the LED. V LED is the voltage drop across the LED and Here, V S is the Source or Supply Voltage
SMALL LED PANEL DESIGN SERIES
The value of the series resistor can be calculated using the following formula. So, selecting the right resistor with the right wattage is very important. Connecting a small LED to a 12V Supply would burn the LED and you can see the magic smoke instantly. The important component (other than the LED of course) is the Resistor.
The following image shows the setup of single LED connected to a 12V Supply and a current limiting series resistor. The circuit diagram for this circuit is shown below. We will try to turn ON a single 5mm White LED using a 12V Supply. The first circuit in the simple LED Circuits is a single LED Circuit. Components Required for LEDs in ParallelĬircuit 1 of Simple LED Circuits (Single LED Circuit).Circuit 3 of Simple LED Circuits (LEDs in Parallel).Circuit 2 of Simple LED Circuits (LEDs in Series).Circuit 1 of Simple LED Circuits (Single LED Circuit).So, in this project, which is more of a tutorial, we will build some simple LED circuits like a simple single LED Circuit, LEDs in series, LEDs in parallel and high power LEDs. For small projects like blinking an LED, we need not worry about burning LEDs as we can connect a small resistor (like a 330Ω) in series with the LED (for a 5V supply).īut as the complexity of the circuit increases, choosing the right resistor with right wattage is important.
Wrong voltage or current to LED will burn them off. Beginners in electronics often start with LEDs and the first project would be blinking an LED. LEDs are very sensitive components with respect to voltage and current and they must be provided with rated current and voltage values. Some of the common LED projects are LED Running Lights, LED Light Bulb, LED Knight Rider and LED Flasher. Students, hobbyists and makers often work with LEDs in different types of projects. Home lighting, office lighting, Automobile lighting, Street lighting etc. Nowadays, people are investing more in LEDs due to their energy efficiency. In this project, we will build few simple LED Circuits.
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