What is a diode tension drop?
LED is a common semiconductor device used in many different types of electronic circuits. When the electrical signal passes through the diode, the diode consumes a small amount of signal voltage when operating. The difference between the signal voltage entering the diode and the voltage of the leaving diode signal is a diode voltage drop. Although a diode voltage drop may apply to a diode or forward or backward forward voltage decrease, it usually describes a decrease in voltage forward. The anode is positively charged and the cathode is negatively charged. When these two different materials meet, called the intersection, both different contradictory accusations will effectively cancel each other. This area without charge is a layer of depletion of the diode that forms an insulating layer in the diode between the anode and the cathode.
When the electrical signal enters the diode, another negative force increases the width of the depletion layer because it reacts with a positively charged anode. A wider layer of depletion blocked the signal in the passage through the diode and consumes all voltagein the process. For example, if 5 volts enter the diode, the diode voltage drop will also be 5 volts. The diode in this state is the opposite distorted and the voltage decrease is a drop in reverse voltage.
Electrical signal entering an anode of diode creates a different set of conditions in the diode. The negatively charged signal overrides over the anode, meets the cathode and passes through the diode and continues the rest of the perimeter. In this process, a relatively small amount of tension is lost and overcomes the positive charge of the anode. For a typical silicon diode, the lost voltage is 0.7 volts. The diode in this state is distorted forward and the voltage drop is to drop forward.
The difference between forward states and back in the diode allows them to block the signal in one direction by dropping 100% voltage, but allows it to pass in the other by dropping only a small amount. Since most diodes have a reverse voltage drop by 100%, it is assumed thate "diode voltage drop" refers to a drop in forward voltage; But this is not always.
There are special diodes that do not drop 100% backward voltage, such as varicap or varactor diodes. In these diodes there are no cathodes and anodes nor across widths. As a result, these diodes can allow a part of the signal entering the cathode to pass through the diodes, even if they are inverted. When describing a decrease in voltage in these types of diodes, it is important to distinguish between forward and return voltage.