we use fuse only .thanks
The leakage current of a (zener) diode is the current that leaks when a diode is connected in reverse biased.
The type of diode used to convert alternating current in to direct current is the power diode.
the main function of the diode is to allow current to flow in just one direction and oppose the flow of current in negative direction.In short diode rectifies the current..
When a diode is operated as reverse bias the current flow is almost completely blocked. A small amount of current is still able to travel in reverse through the diode and this is referred to as the reverse current saturation.
An ideal diode would match the purpose of a diode without any of the drawbacks. The purpose of a diode is to control current flow - The diode "turns on" for current flowing in one direction, and "turns off" if current wants to flow in the other direction. Ideally, there would be no voltage drop across this diode when allowing current flow, thus no power loss. When the diode is "turned off" by a negative voltage, idealy there would be no current flow (no matter how large the negative voltage).
It will conduct electricity when the voltage across its terminals reaches a certain value. Once the over voltage is extinguished, the protection diode becomes an open circuit again. Therefore, you need to connect a protection diode between both wires to be protected (differential mode) and from each wire to ground (common mode). Protection diodes are primary protection devices (fast reacting), but they cannot handle too much current. That is why they need to be used with secondary protection devices (fuses and gas arrestors) to provide better protection.
a break down diode is a diode that allows current to flow freely in one direction but not in the other the difference between it and a standard diode is that it is a semiconductor in the direction that current doesn't flow freely in current only flows in this side when the voltage reaches a set point and the resistance then breaks-down and allows the current to flow it is useful where the circuit might require low voltage protection
the current which has negative value n passes through the diode is called as diode reverse current
The leakage current of a (zener) diode is the current that leaks when a diode is connected in reverse biased.
The leakage current of a (zener) diode is the current that leaks when a diode is connected in reverse biased.
these are essential for circuits which are current sensitive, it regulates the amount of current which serves as protection for circuits. it is commonly used in Laser diode applications.
A zener diode passes drect current, and the point of a zener diode is that the voltage across it stays nearly constant over a range of different currents, so it can provide a supply of stabilised voltage.
over current protection relay
a break down diode is a diode that allows current to flow freely in one direction but not in the other the difference between it and a standard diode is that it is a semiconductor in the direction that current doesn't flow freely in current only flows in this side when the voltage reaches a set point and the resistance then breaks-down and allows the current to flow it is useful where the circuit might require low voltage protection
A diode is a one-way gate for electrical current to flow through. You must have the right size diode for the amount of current that will be used in your circuit. The stripe on the diode is your output end. That is, the current must enter your diode at the non-stripe end and leave at the end with the stripe. This coincides with the diode symbol used on your schematic. If your diode is in backwards, the circuit will not work as the gate in the diode will block the current just the way it should.
The type of diode used to convert alternating current in to direct current is the power diode.
The unit of a diode is the ampere (A), which measures the flow of electric current through the diode. It indicates the amount of current passing through the diode at a given moment.