HOW TO PERFORM THE RESISTOR CALCULATION FOR LED

How to do the resistor calculation for led leds are semiconductors that emit light when an electric current passes through them. The voltage that is applied to the led ultimately decides how bright the led will be. If there is too much voltage, the led will light up brilliantly but will stop functioning very shortly. In the event that there is insufficient voltage, the LED will only provide a weak light. Wiring a resistor in line with the LED allows for part of the voltage to be dissipated, which in turn controls the amount of power that is sent to the LED and, as a result, the brightness of the LED as well as its longevity. An essential initial step in the process of installing a led is to figure out the kind of resistor that should be used in your circuit. instructions 1 Find out what the voltage supply is that will be used in the circuit that the led will be installed in. A circuit that is powered by something like a 9-volt battery, for instance, would have a supply voltage of 9-volts. However, the voltage might be affected by other components in the circuit if the led is connected to the circuit at a point in the circuit that is not immediately after the power source. Make sure there is enough voltage at the point in the circuit where you want to put the led by using a multimeter to check the voltage. 2 Figure out how much voltage is dropped across your led. Although blue and white leds measure closer to 4 volts, this is normally 2 volts for most hues. However, red leds often measure closer to 3 volts. On the product box for your led, you will find the precise voltage drop described. 3. Determine the current of the lead. This information is going to be printed on the package, and it will most likely be about 30 ma. 4 Take the supply voltage and remove the voltage loss caused by the led. 5 After step 4, take the result and divide it by the lead current. 6. Select a resistor with a resistance rating that is either equal to or larger than the outcome of step 1. 5. The resistor is connected to the led in a series connection. cautions and helpful hints Before deducting the result from the voltage supplied by the power supply, you must first sum up the individual voltage drops of the leds that are connected in series. In the event that you do not use a resistor with the appropriate rating, your led will burn out very fast, if not immediately. dreambox dm7080hd dreambox dm7080hd dreambox dm8000hd led wall washer light dm8000 dm7080 hd dreambox dm8000 hd dreambox dm8000 hd dm8000 hd dm8000 dreambox dm7020 hd 7020 hd dm7020 hd dreambox dm500 hd dreambox dm500 hd