Diode application circuit

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(1) Limiting circuit---Using the characteristics of unidirectional conductivity of diodes and the fact that the voltage across the two ends remains basically unchanged after conduction, the signal is limited to a certain range of change. It is divided into single limiting circuit and double limiting circuit. It is mostly used in signal processing circuits. (2) Clamping circuit---Clamps the output voltage at a certain value. (3) Switching circuit---Using the unidirectional conductivity of diodes to connect and disconnect circuits, it is widely used in digital circuits. (4) Rectifying circuit---Using the unidirectional conductivity of diodes to convert AC signals into DC signals, it is widely used in DC regulated power supplies. (5) Low voltage stabilization circuit: Using the characteristic that the voltage across the diode remains basically unchanged after it is turned on, several diodes are connected in series to obtain an output voltage below 3V.