What is the LED circuit?

LED circuit is any electrical power circuit used to power the LED or LED diodes. In its simplest circuit, the LED contains a voltage source, a resistor to reduce voltage and LED. The LED circuit may also contain other components such as switches and sensors, but they do not affect the basic principles connected to LED power.

LEDs are cheap, reliable, robust and energy efficient. The LED circuit has become a common feature in electronic devices, cars and appliances, where it serves as indicator lights and for small lighting. Larger LEDs that have domestic applications have been developed, and they will undoubtedly become more important in the future, but this discussion focuses on the elements of the LED circuit because it applies to smaller LEDs. The diode is a device that allows electrons to flow in only one direction by inserting a little semiconductor material on the way to what is K.Kako intersection. In LED DIODACH this semiconductive material is specially treated to emit photons svItems when the current passes through it. When the electric current passes through the LED in the right direction, it is said to be a distorted and semiconductor material at the intersection of the glow.

6 The excess voltage of the distorted distortion easily damages the intersection, so this backward voltage must be protected against. For this reason, the direct current is preferred to an AC current for powering the LED, so the battery ideal energy sources.

The voltage of the forward voltage can also damage the LED intersection, so the resistor is almost always used to reduce the voltage to the device. The LEDs are evaluated by the manufacturer in terms of both their current these resistance drop in voltage in forward distortion or VF, and these should be taken into account when selecting a resistor for the LED circuit. The value of the necessary resistor can be calculated by deducting the resistance voltage of the LED from the supply voltage and dividing the results according to the current ratingIce.

The risk of backward voltage causes the LED to be placed in the LED circuit with the correct polarity. LEDs allow electrons to switch from their cathodes to their anodes, so LEDs must be connected so that their cathodes connect to the negative pole of power and their anodes to the positive side. Manufacturers indicate the polarity of the LED in several ways, especially by the cathode wire shorter, flat, black or flattening or notch of the cathode side of the LED case.

The typical LED circuit used to power small indicator light will use a battery power of 1.5 to 9 V. It will have typv dependencies on the color drop, about 1.8 to 3.3 volts. LED draws about 5 to 20 mA current.