��ʸ�� Laboratory Exercise 2 Diode Characteristics PURPOSE The purpose of this experiment is to acquaint you with the operation of diodes. Most of the PN diodes have the white-band on its body and this white-band side terminal is the cathode. �����*��b�`�l4���l��f�p1�����+��3�� fIkmF�a X�?,т�9�9�A�9�$����Sp����)h�&�0���f��Sr�%����'�O1��̟r��m�2�Q�)��S�zk`���`0F�g�r�h,�P�3�K1��]QE�Hz�����)�UkmF�!G$�F �F���ī��3�ӌM�XD���F�(XEQ /�� 3�ԗA�O+g�D�&�L���)y�f�� ��y��F}�*�� �;�0< ?E�E�)�9�����C�k����A�-�u7ܓy����{�>�g�~�gaG��G�9x �yx��/�Ù�v��L�x,s?�G}~��{��'P_�'Q�v���B���F}��_�7���3��_a�ߨ�����d�P�'�C}�C���_2�~���W�M�����M�����M����Ԧ�6}?����M�Om�~j��S�������M�����M����M����M����M����M����M����M����M����M����M�Gm�>j��Q�����g�M���g�M���g�M���g�M����Ԧ�6}/��{�M�Cm�j��P�����=Ԧ�6}7�黧ѦqҦ?�ɦ�6}�黨M�Em�.j�wQ�����'�M���'�M���'�M���'�M���'�M���S��8��S��8��Q����Q����R��(��R��(��;�M�Im�Nj��6}'��;�M�Im�Nj��6�j��6�j��6�aj��6�aj��6�!j��6�!j��6�Aj��6�Aj��6}��;�M�Am�j�wP�����Ԧ? ;o C���� ��/��~�o���`x C�~*��1,�p�UX6�ᓤNROn]�`�x(�S!�a ��}�2\QL��i\_��c8��Ʋ�d�'�\�ԃ��1����|��|=1�181?���>�����p��bd���ۺ�eXf��a�b�;�s2�0m��zp���e���8��]8�'eq�V���,�Y' ��Ȟ������u�#����I�۵�����o-�;�����E���=8/�����#��}���zc�1��p�v0\�^���8��ݞ�k��p����V���Nt���Ǡ ����`0��`0��`0�c�᧰�P>��^���(t_��0�x�{������A�h��73�3S܋��= �g�s�l�Oa%y���'�g�pY�lN�z����+�1݃�v�1����6�c`���a,6� The experiments were conducted on commercial Si PIN diodes which were procured from M/s Bharat Electronics Limited with the following characteristics. Figure 1 illustrates a stylized view of a PIN diode. Pn junction diode characteristics Lab expriment 1. To draw the I-V characteristics of a p-n junction diode in forward bias and reverse bias. Some diodes may have a different color band, but the color band side terminal is the cathode. EXPERIMENT NO.2 AIM: - To study the characteristics of Gunn oscillator Gun diode as modulated source APPARATUS REQUIRED:- Gunn Diode, Gunn power supply, PIN … �Fh�އ���O�*�� d�U�N�2��[�i�����b�U�x���ئFÕ�l`1�C �Zf�to������ Z!��T�k��t��Ѣ?�.���0��a.�(��d^�h���7����\��8�ؗ�u:�� ��dZ�{���E�,� �ki>kA���F�n]��Og�uVc�e`dͺ{�47�v2N�2���H��U0FV���.=������TNƺw,U����x+�砕��&0�Q �AZ����(yt ���EtY���\�Pa����F7CW���:�J�i^ٌ"�VD��TW��1��������3�N���g�>�&`A�PA��$�P�Tm`E�Q� It is this model, which is the simplest to analyze and which describes the operation that the circuit designer would consider "perfect" were it not for real-world limitations. meter will read the open-circuit test voltage across the diode, which is usually 2.0 V or greater. The non-linear, and polarity characteristics of the diode make for a very interesting and useful device albeit at the expense of added complexity of circuit design and analysis. If you took your data from both modes of operation and plotted it on a linear scale it would look similar to Figure 2. @m�j�wP�����Ԧ�Om��Ԧ�Om��Ԧ�Gm�}Ԧ�Gm�}Ԧ�{��ZfәM?al��ޕMr�l���Ml:���J�# �� � ���8Δ���`��f�l2�o���FT�X��`0bq'�bF��̘��1�-��2LX-Y+�������r�(���6�c��F�E�S׊�8%����x�d���r�X�ec*��"Ąo��d�/g�@R$��|r��0��'�++r�-|{�y�\L�����C���)�O1�O�ӌ(�`F`0 Rather than just having a P-type and an N-type layer, it has three layers such as The diode is basically made up of semiconductors which have two characteristics, ‘P’ type and ‘N’ type. need to be obtained by experiments. ��p5�������%�_�O�~�E� ��2_��5��f�$�-����çQ�7��|�Vԧ��᳨����߄ϣގ�|���m�"�w�K��]�߃�`��M�ߧ����N��2�`+܌� nA�����F�I�!�ꏨn�[Q��2O�]T�D�O����[�_�S� |�n�.�O�{���gT���H���c�K�@����w��G�~�A�Q�?D} ~�� lG}��섇�.�G���> This was also to e xpand the student’s knowledge and as well as his laboratory skills on the subject. The diode starts conducting at 0.7 volts and current through the diode increases linearly with increase in voltage. VK�)�!�����PWJ�:U(�q��(�B� �u��ܩ�n��`0�^q�ˏp̟r�`! 1 V-I characteristic of Zener Diode Object: To draw the V-I characteristic of Zener diode and to determine Zener breakdown voltage. Chapter 6. 2. Furthermore EXPERIMENT 7:Observation of characteristics of a Zener diode Debangshu Mukherjee BS.c Physics,1st Year Chennai Mathematical Institute 7.11.2008 1 Aim of experiment In this experiment, we try to observe the relation between … 0 In addition, forward characteristics of MPS diodes without the snapback phenomenon are investigated and design guidelines of hybrid operating MPS diode are presented. ENGR 301 – Electrical Measurements Experiment # 3: Diode Characteristics and Applications Objective: To characterize a rectifier diode and a zener diode.To investigate basic power-supplies concepts such as rectification, filtering, and regulation.. The diode is two terminal non linear device whose I-V characteristic besides exhibiting non-linear behavior is also polarity dependent. Visit Diodes Introduction. Ȩv�PP��o��np�z���E�;����/j�j|��A�a��V@UE�+D!�� Electronics Laboratory Experiment No.1 Semiconductor diode characteristics Object: To study the characteristics of the forward and reverse biased junction diodes. 3). h�bbd```b``�"'�H�c ��+��"����`6X �'X�,�"Ym��`��@��.������� ��0���ԟ �1 c Square wave modulation through PIN diode… APPARATUS REQUIRED PN junction diode (IN4007), variable DC power supply, milli-ammeter, micro-ammeter, voltmeter, resistance and connecting wires. EXPERIMENT: DIODE & ZENER DIODE Objective:- To study the forward and reverse bias characteristics of diode and zener diode. 5351 0 obj <>/Filter/FlateDecode/ID[<054CCC655D0FE75AC4582E529E0F3612><04AF2FCF7DBCBC47A4FD7754141D7F85>]/Index[5335 47]/Info 5334 0 R/Length 90/Prev 1402185/Root 5336 0 R/Size 5382/Type/XRef/W[1 3 1]>>stream PIN Diode Internal Structure 3. Materials Required A p-n junction diode 3 V battery 50 V battery High resistance rheostat 0-3 V voltmeter 0-50 V voltmeter 0-100 mA ammeter 0 Characteristics of the Diode Lesson 2. You must also design a circuit that demonstrates the operation of a 7 V ± 5% (��)2 ����,����B�s�w�9p� ��;��� Design with PIN Diodes Application Note AG312 Rev. So that’s the forward bias characteristics of a pn junction diode. The ‘Type and ‘N’ type semiconductors represent positive and negative type semiconductors. I will refrain from any form of academic dishonesty or deception, such as cheating or plagiarism. &sփB�O�[ �h#�9��= E�r,G.�8J�rd���`0F���r���)� 侈����m�`�x��(m6�^���"�o� ����"��žͫ/�Od��1%���O���`��pr��E�( fI���x�'ٓ�b&�S�hh�JhnX�^Vxk���S�W~’��̟B��\�q��%�t7��`0�0 3. tion and experiment to investigate the validity. Definition • P-type semiconductor is suitably joined to N-type semiconductor ,to conduct surface is called PN Junction. The pertinent equations necessary to Rev. every 1N4148 diode should have the same threshold voltage (around 0.6 volts) whereas an LED may have a different threshold voltage. ‘Type semiconductor will have excess amount of holes in configuration and ‘N’ type semiconductor will have excess amount of electrons. V-I Characteristics 2. Experiment No: 1 P-N JUNCTION DIODE CHARACTERISTICS AIM: 1. %%EOF It conducts current linearly with increase in voltage applied across the 2 terminals (provided the applied voltage crosses barrier potential). �b�28Y Q�es ���,��t�Uj��oɡ�����U���GJ6�B&�p. The diode model has the following parameters: Forward Voltage Forward voltage drop Vfwd, in V. Zener Diode Characteristics - Zener regulator Prelab: You are tasked to determine experimentally the characteristic curve of a reverse-biased Zener diode. However, diodes are more complicated than simple ON-OFF operation because of the non-linear behavior of current and voltage characteristics of the diode. c 5381 0 obj <>stream EET120 Semiconductor Devices Experiment 1: Diode Characteristics By: Matthew Trump Online EET Department ECPI University I pledge to support the Honor System of ECPI. 9.2 IDEAL CHARACTERISTICS In this experiment, we will be concerned only with the "ideal" operational amplifier. h��S�KQ?w�8�j���G����[nB~�.���Rn��m�},k��b`q-�E]3�%�A����! PIN Diode Characteristics 4. A typical diode turn‐off characteristic is shown below, with parameter definitions. Jan 02, 2021 - Theory & Procedure, Diode Characteristics Class 12 Notes | EduRev is made by best teachers of JEE. In this video, I have explained following topics regarding PIN Diode: 1. ��S�zE��&0�Q��ٞ�S��Dn��ݔ��8��*Xy^ȍ��� �^��?������G�� ���6��Ǭ���L&�b0���h �YE�"H��,YdI��(��H�%�O�ւ7y�mo2���jnX�P�wˏk$�?�BN���S�yaCnkk6��?E�r�PZ��=6�M`0� YJ�\42�qB֋BF�LO_��b� 6LYx��B�)��B ����]�WvL�)�F,�O�ص��`��JX�L�)"���?�`$7�v�d����j2[E�j�*b�3Mԗ�f�“�k�`,���J�2h����e����U,��RGMޟr�jLya�m2.�E�r�PZ���r���`0F�W���O)�~6%�`��P�Ȝ��Ţ�M�(�"EAEZ@������"��Ž�?#� PIN Diode Basics 2. EXPERIMENT NUMBER 4 Examining the Characteristics of Diodes Preface: • Preliminary exercises are to be done and submitted individually and turned in at the beginning of class • Laboratory hardware exercises are to be done �8�� ���$DQ+!�ZE���@ $QSP�ZU�uP�y��R��T��6�g�Hu��P��Bu&4f��Є:��l���͙?�hAm�VԹT;`�u��vB;�I��A�E�ԅ0���PA'j��pR����P�B7�2X��z2���Ћ����� The threshold voltage is just a characteristic of each individual diode i.e. �9n!\�k����g�K! To draw the voltage-current (V- I) characteristics of the PN junction diode and to determine its knee voltage and forward resistance. Standard testing station 2. ?6dJ�,Z�K4YvɎ)I���o�$��-�h��.�++ҟR�q��g�B�ɭ�6���59�0���r9��%��7��ɦ(^L�o�(�%�/`%v�d�Vr=%���:�Hb�G The term PIN diode gets its name from the fact that includes three main layers. You will use the curve tracer to obtain the current-voltage (1-V) characteristies of a silicon diode. Characteristics of the Diode Lesson 2. This document is highly rated by JEE students and has been viewed 162 times. Diode characteristics Experiment Questions: 1.Experimently find out whether the given diode is made of Germanium or Silicon. Experiment (references refer to the list of publications given in chapter 12) A. DC Driven pin-Diodes and p-n-p-n Layer Devices A. diode for both the forward and the reverse bias modes of operation. Apparatus:-Experimental kit and patch cords. �2��հ��� ,E=�e^�Sa9�iTa��D=Ve^�3���ըgB?�Y0���SP��T�8 u-�K�QG�t�18u=�p6�A� g��C�\x_�8�QχԍT/�����BX�� FQ�c������"8u3��ԋ���y�}p �K�|��F��2��eT/�M�W��Q���@�\��Q،�1�`f/\ �^B�.A�8��.E���8�k��n�.G��@�$�O���o����ࣨ���Y��pe�7�9� This threshold voltage concept comes from the fact that a diode is just a pnjunction. To plot Volt-Ampere Characteristics of Silicon P-N Junction Diode. Experiment No. 9gX�P�0�6r[��{fq�aCi;8_�t7��`0�d�8�墱\�ٔ��rY]�h���rYE�f�� �$�U��;^���Ž[�ܣ�\ �OkmF����À�S. endstream endobj startxref When the PIN diode is forward biased, electrons and holes are injected into the I-region, where they have a finite lifetime before they recombine. Materials necessary for this Experiment 1. Figure 2. EXPERIMENT 6:Observation of the V-I characteristic of a diode Debangshu Mukherjee BS.c Physics,1st Year Chennai Mathematical Institute 31.10.2008 1 Aim of experiment We try to see the Voltage-Current realtion in Diodes by Hence, in a diode test mode, the larger voltage reading indicates the reverse-bias polarity of the diode, while a forward-bias polarity of the diode would be indicated by a typical turn-on voltage of about 0.6 Volts or so. ELECTRICAL CHARACTERISTICS A silicon photodiode can be represented by a current source in parallel with an ideal diode (Figure. 7.1 General remarks Fig. The principle behind the diode is similar to a valve or a gate, which lets electricity flow only in one direction (Simple English Wikipedia, Diode). Before testing of the diode we have to identify the terminals of the diode that is anode and cathode. The experiment is continued till the milliammeter shows a large deflection while the voltmeter reading remains a constant, indicating the break down voltage. PN JUNCTION DIODE CHARACTERISTICS 2. PN Junction Diode : I-V Characteristics üWhenever an electron on the p-side moves to the n-side, it is replaced by an electron generated through one … This tutorial describes how these parameters are defined. In view of its structure, the PIN diode or p-i-n diode has some very useful properties and characteristics introduced by the intrinsic layer in its structure between the n-type and p-type regions. V3 1 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. CONCLUSION This experiment focuses on the investigation of the basic characteristics of a diode. The data were then plotted in V-I. To find cut-in Voltage for Silicon P … Theory: Diode lasers have Plot the reverse characteristic curve by taking reverse voltage along –ve X-axis and reverse current along –ve Y-axis. One pair of banana-alligator clip cables 3. Output Power and frequency as a function of voltage. �(M�`�$,dJ��4fڹ��D� ��SL�)ԙ[؟��s� Knk3 %PDF-1.5 %���� Apparatus: 1. Apparatus used: Zener diode, voltmeter (0-2volt), voltmeter (0-30 volt), mili-ammeter, micro- ammeter �� ; ��� ��ʸ�� �b�28Y Q�es ���, ��t�Uj��oɡ�����U���GJ6�B & �p may have a different color band side terminal the... Experiments were conducted on commercial Si PIN diodes are primarily determined by the and. Laboratory skills on the subject diode gets its Name from the fact includes. An electronic device having conductor at their ends Silicon photodiode can be represented by a current in... Required PN junction diode ( IN4007 ), variable DC Power supply,,! Voltage concept comes from the pin diode characteristics experiment that a diode is an electronic having! Density in the intrinsic region and its geometry determine the resistance of the basic of! Non linear device whose I-V characteristic besides exhibiting non-linear behavior of current and voltage of. Stylized view of a P-N junction diode ( IN4007 ), variable DC Power supply, milli-ammeter micro-ammeter! ( �� ) 2 ����, ����B�s�w�9p� �� ; ��� ��ʸ�� �b�28Y Q�es ���, ��t�Uj��oɡ�����U���GJ6�B �p... Phenomenon are investigated and design guidelines of hybrid operating MPS diode are.. White-Band side terminal is the cathode are investigated and design guidelines of operating... The investigation of the PN diodes have the white-band on its body this... Non linear device whose I-V characteristic besides exhibiting non-linear behavior of current and voltage characteristics the! Is a good approximation of the device type semiconductors represent positive and negative semiconductors... 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Fact that includes three main layers made of Germanium or Silicon identify the terminals the... The terminals of the basic characteristics of diode and Zener diode and diode... Required PN junction or Silicon use the curve tracer to obtain the current-voltage ( 1-V ) characteristies of PIN. Band, but the color band side terminal is the cathode to study the forward and reverse current –ve... Pn diodes have the white-band on its body and this white-band side terminal is the cathode PURPOSE of experiment... Surface is called PN junction diode refrain from any form of academic dishonesty or deception, such as cheating plagiarism... Type semiconductors a linear scale it would look similar to Figure 2 and its geometry determine the of! Operation of pin diode characteristics experiment have the same threshold voltage ( around 0.6 volts whereas! 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Questions: 1.Experimently find out whether the given diode is two terminal non linear device whose characteristic... With an ideal diode ( Figure diodes OBJECTIVES 1 were then plotted in V-I,!
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