What is the normal working state of the voltage regulator diode

What is the normal working state of the voltage regulator diode

The voltage regulator diode operates in reverse breakdown during normal operation, and the normal working state of the voltage regulator diode is related to the diode voltage regulator model. Different models of voltage regulator diode have different voltage regulator values. For example, if the voltage stabilizing value of a diode is 2.5 volts, it will have an input voltage higher than 2.5 volts in the circuit and a stable output of 2.5 volts. If the input is lower than 2.5 volts, it will not work, which is its normal working state.

The main function of a voltage regulator diode is to stabilize the voltage. When using a voltage regulator diode, the negative electrode is connected to a high potential, and a current limiting resistor is connected in series. For example, the power supply is connected to a current limiting resistor, and then it is connected to the negative electrode of the voltage regulator diode. The positive electrode of the voltage regulator diode is grounded, and the negative electrode of the voltage regulator diode is the voltage regulator diode after stabilization. What is the purpose of the voltage regulator diode? When the breakdown voltage of the voltage regulator is lower than that of a regular diode, it has a single conductivity. Conduction occurs when the reverse voltage reaches the breakdown voltage of the voltage regulator diode. When the reverse voltage of a 6V voltage regulator diode is lower than 6V, the resistance is high. Conducted when equal to and exceeding 6V. The main function of a voltage regulator diode is to stabilize the voltage. Commonly used in regulated power supplies. Always connect in reverse in the circuit, with the positive pole of the voltage regulator connected to the negative pole of the power supply

The forward characteristic of the voltage ampere characteristic curve of a voltage regulator diode is similar to that of a regular diode. The reverse characteristic is that when the reverse voltage is lower than the reverse breakdown voltage, the reverse resistance is large and the reverse leakage current is very small.

However, when the reverse voltage approaches the critical value of the reverse voltage, the reverse current suddenly increases, known as breakdown. At this critical breakdown point, the reverse resistance suddenly drops to a very small value. Although the current varies over a large range, the voltage at both ends of the diode is basically stable near the breakdown voltage, thus achieving the diode's voltage stabilizing function.