By this property of PIN diode, we can say that pn junction and PIN diode are the same but there is one difference is it has one extra layer between p and n. The i-region has high resistance which obstructs the flow of electrons to pass through it. The wide intrinsic region is in contrast to an ordinary p–n diode.The wide intrinsic region makes the PIN diode an inferior rectifier (one typical function of a diode), but it makes it suitable for attenuators, fast switches, photodetectors, and high voltage power electronics applications. R. Caverly and G. Hiller, Distortion in p-i-n Diode Control Circuits IEEE Trans. Since it shows a fast response, it is used as high frequency component. However, at microwave frequencies, its IV curve changes and it functions as a current-controlled resistor, with the resistance value set by the level of DC current. It also finds applications in power supply rectification. This is a basic tutorial on PIN Diodes, with some examples of how they are used in RF switch applications. for most applications. The large width of intrinsic layer imparts the ability to the diode to tolerate high reverse voltage without leading to the breakdown of the diode. By an intrinsic layer, we mean a pure crystal of silicon or germanium without any doping in it. Tunnel diode acts as logic memory storage device. The junction resistance, R s, can be changed from high to low by the application of a forward bias current. This page covers PIN diode basics and its applications. 3 Intrinsic region offers the high resistance to the current through it . PIN diodes in RF switch applications PIN diode SPST switches Figure 5 Photo of the evaluation board for PIN diode SPST switch with BAR63-02L Vias Copper 35 Figure 6 PCB stack information of the evaluation board for PIN diode SPST switch FR4, core, 0.2 mm µm Gold plated FR4, preg, 0.4 … Reverse Recovery of a PIN Diode Application ID: 57971 This tutorial simulates the turn-off transient (reverse recovery) of a simple PIN diode with an inductive load, loosely based on the book "Fundamentals of Power Semiconductor Devices" by B. J. Baliga (p. 256, 2008 edition). The series connected switch has an insertion loss, A, corresponding to [2]: The PIN diode switch is more robust and linear than its FET counterpart. We will look at the different mechanisms of recombination, including Auger and radiative recombination in GaAs and how they are influenced by the dopant distribution and the applied bias. PIN Diode Applications Switches PIN diodes are commonly used as switching elements to control RF signals. Depends on your application. At microwave frequencies, the IV curve undergoes a change, so that it behaves like a resistor, whose resistance value is determined by the level of DC current that is present in the I-region. Microwave Theory Tech., vol. Certain types of pin diodes are used as photodetectors in fiber-optic systems. Most of the diodes are made with semiconductor materials like SI, Ge, etc. A pin diode can also be used in attenuator applications because its resistance can be controlled by the amount of current. Simulation setup. A major part of this Handbook is devoted to the basic circuit applications of this unique device. Hence PIN diode structure is different than the normal PN junction diode. A project file is provided to assist with the application example. 5. PIN diode doesn’t suitable for rectifier applications. 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