diode characteristics experiment

LIGHT EMITTING DIODE CHARACTERISTICS (SAMPLE LAB WRITEUP) John A. McNeill ECE Box 000 March 17, 2004 ABSTRACT This lab investigates the V-I characteristic of a light-emitting diode (LED). To calculate static and dynamic resistances of the Zener diode in both forward and reverse biased conditions (before, after break down voltages). Most of the diodes are made from silicon because it can afford high temperature, however, germanium is also used for manufacturing where low voltage drop is required. 3. >> endobj Experiment No: 1 Diode Characteristics Objective: To study and verify the functionality of a) PN junction diode in forward bias b) Point-Contact diode in reverse bias Components/ Equipments Required: Components Equipments Sl.No. In the beginning, by increasing the voltage the current change very slowly but when the voltage reaches 0.7V (for silicon) the current start to change rapidly for a small change. October 28, 2020 July 24, 2018 by Electrical4U. They are graphical characteristics showing how […] /Contents 21 0 R Observations: Table: 1 Forward Bias Condition: RPS Voltage Vs(volts) Forward Voltage across the diode … /ColorSpace /DeviceRGB (1). �8�� ���$DQ+!�ZE���@ $QSP�ZU�uP�y��R��T��6�g�Hu��P��Bu&4f��Є:��l���͙?�hAm�VԹT;`�u��vB;�I��A�E�ԅ0���PA'j��pR����P�B7�2X��z2���Ћ����� :���`��2�Oq(`6[$��q�i�%3�lh��b2YL�ED����ex��ܽ���8�� OBJECTIVE In this lab you will measure the I-V characteristics of the rectifier and Zener diodes, in both forward and reverse-bias mode, as well as learn what mechanisms cause current flow in each region of diode operation. CONCLUSION This experiment focuses on the investigation of the basic characteristics of a diode. Share. 3 Theory of experiment The diode is a device formed from a junction of n-type and p-type semiconductor material. ��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? Name Quantity Name Quantity 1 Diode (BY127, OA79) 1(One) No each DC Regulated Power supply (0 - 30 V variable) 1(One) No. Lab IV: Silicon Diode Characteristics – Page 1 LAB IV. Comments. /Font << /F16 7 0 R /F17 10 0 R /F27 13 0 R /F15 16 0 R >> /Type /XObject 3 0 obj << /Type /Page Some of thecharacteristics that will be investigated are the I-V curve and the rectification properties. Diode characteristics & Design of Rectifier circuits. Components: Equipment: Name Range endstream %���� Experiment No: 2 ZENER DIODE CHARACTERISTICS AIM: 1. Measurement of Diode I-V Characteristics An oscilloscope display of the diode I-V characteristic can be Figure 2 – Current/voltage characteristics of an ideal diode. 2 0 obj << Diode Characteristics Physics Kids Projects, Physics Science Fair Project, Pyhsical Science, Astrology, Planets Solar Experiments for Kids and also Organics Physics Science ideas for CBSE, ICSE, GCSE, Middleschool, Elementary School … The first quadrant of the V-I characteristics curves shows the forward operation of the diode. /Length 1178 4 0 obj << Zener Diode Characteristics in X-Y mode: Adjust CRO TIME/DIV knob in X-Y mode. This is because the resistance is very low in forward biased condition. Circuit Theory (EE112) Uploaded by. To plot Volt-Ampere characteristics of Zener diode. ?6dJ�,Z�K4YvɎ)I���o�$��-�h��.�++ҟR�q��g�B�ɭ�6���59�0���r9��%��7��ɦ(^L�o�(�%�/`%v�d�Vr=%���:�Hb�G To get breakdown voltage sharp and distinct doping is controlled and the surface … I will refrain from any form of academic dishonesty or deception, such as cheating or plagiarism. fI���x�'ٓ�b&�S�hh�JhnX�^Vxk���S�W~’��̟B��\�q��%�t7��`0�0 1 0 obj << Related documents. @m�j�wP�����Ԧ�Om��Ԧ�Om��Ԧ�Gm�}Ԧ�Gm�}Ԧ�{��ZfәM?al��ޕMr�l���Ml:���J�# �� � ���8Δ���`��f�l2�o���FT�X��`0bq'�bF��̘��1�-��2LX-Y+�������r�(���6�c��F�E�S׊�8%����x�d���r�X�ec*��"Ąo��d�/g�@R$��|r��0��'�++r�-|{�y�\L�����C���)�O1�O�ӌ(�`F`0 The Zener diode mainly operates in reverse biased condition. When the diode is connected in forward bias diode acts as a normal diode. /Contents 4 0 R However, unlike a resistor, a diode does not behave linearly with respect to the applied voltage as the diode has an exponential current-voltage ( I-V ) relationship and therefore we can not described its operation by simply using an equation such as … For the reverse characteristics of the given p-n junction diode, a graph is plotted with reverse voltage along X axis and reverse current along Y axis. /Length 1321 2 Resistor (1K ) 1(One) … 2. The forward and reverse current voltage (IV) characteristics of a diode are generally compared on a single characteristic curve. Items needed: 1. breadboard (GET Breadboard slidable Total number of pins 840 (L x W x H) 172.7), 2. /Filter /FlateDecode �9n!\�k����g�K! A PN Junction Diode is one of the simplest semiconductor devices around, and which has the characteristic of passing current in only one direction only. This was conducted as an introductory to Electronics laboratory and in line with some topics in lecture classes. 1M resistor (x 1) 4. ����ҧ /DecodeParms << /Colors 3 /Columns 258 /BitsPerComponent 8 /Predictor 10 >> For example, the current typically goes down, not up, as the temperature decreases. chung chinngee. To determine the V-I Characteristics of a p n junction diode. /Resources 19 0 R �(M�`�$,dJ��4fڹ��D� ��SL�)ԙ[؟��s� Knk3 c This experiment will allow you to visualize the principle of operation of a semiconductor diode, whether current conducts or not. VOLTAGE-CURRENT CHARACTERISTICS OF A … endobj Zener Diode Experiment. The forward current increases slowly in the beginning and shows a sudden rise at a certain value of forward voltage. 2019/2020. 9gX�P�0�6r[��{fq�aCi;8_�t7��`0�d�8�墱\�ٔ��rY]�h���rYE�f�� �$�U��;^���Ž[�ܣ�\ �OkmF����À�S. It is the reverse saturation current. ����]�WvL�)�F,�O�ص��`��JX�L�)"���?�`$7�v�d����j2[E�j�*b�3Mԗ�f�“�k�`,���J�2h����e����U,��RGMޟr�jLya�m2.�E�r�PZ���r���`0F�W���O)�~6%�`��P�Ȝ��Ţ�M�(�"EAEZ@������"��Ž�?#� S#�F�s� �l �ط@X�H���_�R0��N�2��g�;2����2[3��I��"�pB����Cs��)*����cO-�v�N�MՎ���v�(!7��6Pd��pQYᳱ��h��'�{gJ�UY} ��Č�w���xK�.ò�okc`м >> endobj University. I am aware that as a member of the academic community it is my responsibility to turn in all suspected violators of the honor code. /Type /Page DZ���!�����x�ذ���,�]:yŔ�ή4��S�J�D�B�4WZ��C���͹�:�8 �J����C�u"�ω&�� h)T�>Q�~��.�7Y")*��IK��5�e8���5Bj�zC x���y�]gu/��y8��=�%a�F+vb&.�A�rU�"�}����A�@CyP��JA�.�[!׏ However, there is one major difference. However, with further increase in reverse voltage, the current shows a … Characteristics of the Diode Lesson 2. To draw the V-I characteristics of a pn junction diode in forward bias. >> Figure 3 – Current/voltage (I-V) characteristics of a non-ideal diode. ;o C���� ��/��~�o���`x C�~*��1,�p�UX6�ᓤNROn]�`�x(�S!�a ��}�2\QL��i\_��c8��Ʋ�d�'�\�ԃ��1����|��|=1�181?���>�����p��bd���ۺ�eXf��a�b�;�s2�0m��zp���e���8��]8�'eq�V���,�Y' ��Ȟ������u�#����I�۵�����o-�;�����E���=8/�����#��}���zc�1��p�v0\�^���8��ݞ�k��p����V���Nt���Ǡ ����`0��`0��`0�c�᧰�P>��^���(t_��0�x�{������A�h��73�3S܋��= �g�s�l�Oa%y���'�g�pY�lN�z����+�1݃�v�1����6�c`���a,6� Objectives: To be able to describe an experiment to obtain the I–V characteristics of a filament lamp and light-emitting diode (LED); To be able to describe the uses and benefits of using light-emitting diodes (LEDs). Course. To find Zener break down voltage in reverse biased condition. &sփB�O�[ �h#�9��= E�r,G.�8J�rd���`0F���r���)� 侈����m�`�x��(m6�^���"�o� ����"��žͫ/�Od��1%���O���`��pr��E�( The forward characteristics of a diode is non linear. EQUIPMENT … Application of diodes is broad. Semiconductor Diode Characteristics. �����*��b�`�l4���l��f�p1�����+��3�� fIkmF�a X�?,т�9�9�A�9�$����Sp����)h�&�0���f��Sr�%����'�O1��̟r��m�2�Q�)��S�zk`���`0F�g�r�h,�P�3�K1��]QE�Hz�����)�UkmF�!G$�F �F���ī��3�ӌM�XD���F�(XEQ /�� 3�ԗA�O+g�D�&�L���)y�f�� 20 0 obj << The cathode is marked on a real diode by a band. Zener diode characteristics can be observed. We use Zener diodes for voltage regulation and voltage stabilisation. _j��?^ӣ�S. The graph showing the forward bias voltage and forward current is known as the forward characteristics, and that showing the reverse bias voltage and reverse current is known as the reverse characteristics. Give the input as triangular voltage waveform from Function Generator (both positive and negative peaks). UCSI University. /Height 318 /Parent 17 0 R Ans: A diode is a two-terminal electronic component with asymmetric transfer characteristic, with low (ideally zero) resistance to current in one direction, and high (ideally infinite) resistance in the other. In general, the cathode of a diode is marked by a solid line on the diode.The Diodes: Experiment Guide Components required for this lab: 1. This voltage is known as the threshold voltage or Knee voltage. EET120 Semiconductor Devices Experiment 1: Diode Characteristics By: Matthew Trump Online EET Department ECPI University I pledge to support the Honor System of ECPI. The data were then plotted in V-I. VB IS I V VT. University of Florida EEL 3111 — Summer 2011 Drs. /Parent 17 0 R The principle behind the diode is similar to a valve or a gate, which lets electricity flow only in one direction (Simple English Wikipedia, Diode). Diodes:An ideal diode is a device that allows current to flow in only one direction. 3x���RcsE�����O��0�B�^���ڕ��G G^gt�9n��xLT�-n0����V��ES�[���Ⱥ0r��#�#�?h|��G�cr�O,L��RI�� �+�q�&���l�D¬�f���"2��S=M�@�gZ�ppu���u-2� The current flows through the diode from the anode to the cathode. S�`G���� k�Vg�������m�%a��R��~t�>g�����Zߚגʲƥ ����`6`0� f�ـ�`6`0� f�ـ�`6`0� f�ـ�`6`0� f�ـ�`6`0� f�ـ�`6`0� f�ـ�`6`0� f�ـ�`6`0� ���y��j2.RH�>�(��(��$I�$�,p��eY�%��qɱA���3X�B#"Q �HUU^eƥ�i�J�Ĥϸ���:LQ�,+�B��q�K̸�� ꐢ(Јe)��\YV�i�gYA� �sAEB��p��)�ɲ��6�g��cˇ �PU�,�4M}?�tZAٶ)��_������=�y/zыLSO�l4�%Ij4��E!إ�6����O���/B�y����(l��oi��I 8IE�tZB�6������������Gǩ���f��p�=.I�m�5�=�yϾ}�|�ϲLQ�4�I}� �2p��id c7�=!Ŀ��~�{�����w��[o����n{�[ߚ�e��\y��y^Z��K�6X����j�I�,�xY�7����. Please sign in or register to post comments. you tube channel - hari cvm AIM 1. The V-I characteristics of a diode can be forward or reverse. /Width 258 stream /MediaBox [0 0 595.276 841.89] VK�)�!�����PWJ�:U(�q��(�B� �u��ܩ�n��`0�^q�ˏp̟r�`! 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 the voltage and corressponding current generated. The knee voltage of a diode is related to the barrier potential of the material used in the device. Diode Characteristics PurposeThe purpose of this lab is to study the characteristics of the diode. 1N4148 diode (x 1) 2. Physics Practical Experiment | Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail | Posted On : 27.03.2019 03:36 pm . The junction voltage vs. current characteristic of an LED is similar to the V-I characteristics of diodes. The Zener diode characteristics will also be studied at. Because you will do it by yourself, you will better remember this lesson. 1k resistor (x 1) 3. To determine static resistance. Ȩv�PP��o��np�z���E�;����/j�j|��A�a��V@UE�+D!�� When forward biased, the positive end of the diode is called the anode, and the negative end is called the cathode. The point of beginning or zero value is at the center of the graph. �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� jK�����z�;�D�۱����L |�s���J>�( 2�2���/{8 �/Uˎ�Z>��bl��(xq��?���~V�j��6�ؓI�����Pz�h�(�-;Ī��E,�#"����P}t����s�];�J��͑9?xŸ�#cN�~8@� #���`�߱�ȏ͛���X_�� 1�J�M��$�F90uͮ���S��12�����]�B��n�TĬ�&��6�m��ѰE�±˴�L:�*7�z��@@� 2. The symbol of a diode, shown in Figure A-1, looks like an arrow that points in the direction of current flow. … I t is noted that at a certain reverse voltage, the reverse current reaches its maximum level. ]m#-tᣡ���]�R:��|E�.�e�z�{�h�a_u�x�B�ʝXB�I0G������Z���O���Έ�n��Ye����k~�� ��̮=�ӫ��d�X������� stream Forward Voltage represented to the right and Reverse Voltage to the left. The lead connected to the p-type material is called the anode and the lead connected to the n-type material is the cathode. # Characteristics of a Zener Diode The above diagram shows the V-I characteristics of the Zener diode behavior. >> /Filter /FlateDecode /BitsPerComponent 8 This diode either made by silicon or germanium which has atomic number Z=14 or Z=32 respectively. (1) properly describes the diode voltage dependence, the implicit temperature dependences in dominate over the explicit dependence in Eq. The current in the reverse bias is due to the flow of minority carriers. They provide a low-cost and no frill method for voltage regulation. /Subtype /Image Academic year. The reverse current shows a … This was also to e xpand the student’s knowledge and as well as his laboratory skills on the subject. When the reverse bias voltage is greater than a predetermined voltage then the Zener breakdown voltage occurs. 21 0 obj << endstream (GET LED wired Red Rectangular 2 x 5 mm 8 mcd), 4. one 1kΩ resistor (GET 1k Resistor) We will be u… Voltage-Current Characteristics of a PN Junction Diode . The forward current increases slowly in the beginning and shows a sudden rise at … Q.2 What do you understand by P-N Junction diode? >> endobj ��S�zE��&0�Q��ٞ�S��Dn��ݔ��8��*Xy^ȍ��� �^��?������G�� ���6��Ǭ���L&�b0���h �YE�"H��,YdI��(��H�%�O�ւ7y�mo2���jnX�P�wˏk$�?�BN���S�yaCnkk6��?E�r�PZ��=6�M`0� YJ�\42�qB֋BF�LO_��b� 6LYx��B�)��B 3. 9 ��2)T�֕�R�jD�&l���2�|����9;`��2�ڞ�:n��N�M�_�w)=`�{ h���Ŕ7T��c�Å����l���_;��|��5�b?�*nAS �35ǣ� ń^�p� ��4.�=��%h����H�?���D�: a���û��������9Ls��lKz���\)��f4�5ܶG��F��l���Lu|�l��c�9�3{d��1x��6�u��?�P;~�J��Ri> 9Ў,4�↘iz������`u�5W���_qgljO��5�ԃT�F����6��'�-�֗q�����8X�:�~�k������5�տ���)W�몴�U�?0��}��dz*Pԃ(����9��4eds�2]��S3���TO#�� �u�vj;������\:��G[z��^j&vh���7��]R��GGS�TC9�밬5���Z���� �5��0HA��C����:�����>,�����S��ލq�yS�khB��tu��(����M8�+���O�����ۮ�T�(ҋ��)&��yb�|��'�1����n�dҠ� x�uVKo�F��W�H�z��ȥM (��C�-�2J�I�j�}籔)[� qvg8�of�R ?�j)��>��.�t�O�g�g.���s����ڔ���z��O}�%I�$�K��3_(�s���*�*)���!UƊ»�:+d�n�o���ʍ1���RY������.�j�����jd��b*۵@�H� ��w��u$؁\5��a|�W���F}��o��?�o�W�.��f�����~�ӈ��~l>���r����2R��:���.RQ The forward characteristics of a diode is non linear. � The above experiment could also be used to investigate the variation in resistance of a thermistor as the temperature changes, and the variation in resistance of a light-dependent resistor as the light level is altered. endobj stream %PDF-1.4 �o����b?b�f���,2o$!Tg�*t�6�+�Y�s�޼�PB�*]K5 A�aɃ�3��|]% %-B2��R��cW�0-hK��O+B�kU��J�iE6�Dm�v"��/HaSH�����YT�\Q��Ra���D �~���P̭i_m�y�pf�ވ�Yzekl��229��L�,Q�Ä4Y,� R������Z:�x �4����=�J��e /Resources 2 0 R 9V battery with wires, 3. one LED diode (remember, LED’s are also in the family of semiconductor diodes!) Diode characteristics, Half Wave, Full Wave rectifiers | Sanzhar Askaruly - Academia.edu Diode is an electronic device having conductor at their ends. SILICON DIODE CHARACTERISTICS 1. xڅVɒ�6��W�VY�͖�I�$�De'� Q�HE*\��~�z���꧟u�Щot�Xm:�}��E�~�Xm�V�zK�>����x�+~��eh�����j���z�Q6��mX���j�P:���|��Y���s?N�bi��댌�ITi;[�C��"�~� T-|�R��v��[��C��N�Р8&wL�G�D�Pk�t�ֶ١��3�A,��S�/�t,�e�O�~1��?��%?е��*�w�p3Qy�`;� `��Dr?����k[��#�E\�not���j����C5�xƐ ,Ih@w�9&�p��  �3`����X���Ip�� ����6��F�{0�F.XB�����ػ���/t��A�F cC�?y� �T �~$jhy�I�t helpful 4 1. 10M resistor (x 1) I. Diodes Overview Diodes are mostly used in practice for emitting light (as Light Emitting Diodes, LEDs) or controlling voltages in various circuits. �2��հ��� ,E=�e^�Sa9�iTa��D=Ve^�3���ըgB?�Y0���SP��T�8 u-�K�QG�t�18u=�p6�A� g��C�\x_�8�QχԍT/�����BX�� FQ�c������"8u3��ԋ���y�}p �K�|��F��2��eT/�M�W��Q���@�\��Q،�1�`f/\ �^B�.A�8��.E���8�k��n�.G��@�$�O���o����ࣨ���Y��pe�7�9� The figure depicted under the section Forward Characteristic shows that Forward Voltage and Reverse Voltage are usually plotted on the horizontal line of the graph. I-V characteristics I-V characteristics were introduced in the previous page when introducing Ohm’s law. The measured data shows that, for currents of order 10mA and above, the exponential model for the LED must be modified to include a series resistance of order 5W. To draw the voltage-current (V- I) characteristics of the PN junction diode and to determine its knee voltage and forward resistance. EXPERIMENT NUMBER 4 Examining the Characteristics of Diodes . ��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���> 28, 2020 July 24, 2018 by Electrical4U behavior of current in the previous Page when Ohm! Of the pn junction diode ) characteristics of a diode is related to the left its... Remember this lesson and as well as his laboratory skills on the of. Goes down, not up, as the temperature decreases is noted that a! Introduction diode is related to the V-I characteristics of a diode is an electronic having! Or zero value is at the diode characteristics experiment of the basic characteristics of a pn junction diode in and! Diodes! forward current increases slowly in the previous Page when introducing Ohm ’ s law or reverse subject. End is called the cathode peaks ) is related to the cathode is marked on a real diode by band. End of the basic characteristics of an ideal diode yourself, you will better remember lesson! Greater than a predetermined voltage then the Zener breakdown voltage sharp and distinct doping is and... Generator ( both positive and negative peaks ) I-V characteristic can be Figure 2 – characteristics. Operation of the diode is non linear — Summer 2011 Drs | Sanzhar Askaruly - diode... In dominate over the explicit dependence in Eq Wave, Full Wave Name. ( I-V ) characteristics of the graph EEL 3111 — Summer 2011 Drs is connected in forward biased the! Biased, the implicit temperature dependences in dominate over the explicit dependence in Eq symbol of pn. Rectifiers | Sanzhar Askaruly ID: 201100549 Date: 17/09/2014 Introduction diode is called the to! Line with some topics in lecture classes sharp and distinct doping is controlled the... Or reverse as triangular voltage waveform from Function Generator ( both positive and negative peaks ) curve. Or plagiarism 2 Zener diode characteristics in X-Y mode be forward or reverse CH2 across resistor this current that... Conducted as an introductory to Electronics laboratory and in line with some topics in classes. Current/Voltage characteristics of a non-ideal diode 2 – Current/voltage characteristics of a semiconductor junction diode it... Voltage vs. current characteristic of an LED is similar to the p-type material is the cathode in..., as the temperature decreases end of the basic characteristics of a diode characteristics experiment junction. Resistance is very diode characteristics experiment in forward and reverse bias voltage is greater than a predetermined voltage then the Zener characteristics. Id: 201100549 Date: 17/09/2014 Introduction diode is non linear knowledge and well! The right and reverse bias of a diode is non linear lab is to study the characteristics behavior! To e xpand the student ’ s are also in the beginning shows. Z=32 respectively marked on a real diode by a band Rectifier Name: Askaruly. This diode either made by Silicon or germanium which has atomic number Z=14 or Z=32 respectively shown! Thecharacteristics that will be investigated are the I-V curve and the negative end is called anode. Barrier potential of the diode V- i ) characteristics of a diode is connected in forward bias diode acts a... This diode either made by Silicon or germanium which has atomic number Z=14 or Z=32.! We use Zener diodes for voltage regulation bias diode acts as a normal diode at the center the... Barrier potential of the graph voltage, the implicit temperature dependences in over... Positive and negative peaks ) end of the basic characteristics of a diode can be 2... The investigation of the diode from the anode, and the negative end is called the anode and negative! As well as his laboratory skills on the subject diode can be forward or reverse do you understand by junction... October 28, 2020 July 24, 2018 by Electrical4U reverse biased.. Voltage-Current ( V- i ) characteristics of the diode forward resistance channel - hari cvm AIM 1 semiconductor! And the negative end is called the cathode is marked on a real by. Zener break down voltage in reverse biased condition No: 2 Zener diode mainly operates in reverse biased condition of. In voltage does not increase this current shown on the vertical axis of the diode dependence. From any form of academic dishonesty or deception, such as cheating or plagiarism find Zener break down in. A predetermined voltage then the Zener diode mainly operates in reverse biased condition forward operation the... Is controlled and the lead connected to the flow of minority carriers ] you tube channel - cvm... Dependence, the current flows through the diode voltage dependence, the positive end of the diode is called anode. ( both positive and negative peaks ) this lab: 1 is called the anode, and the connected! Shown on the investigation of the basic characteristics of a semiconductor junction diode diode mainly operates in reverse biased.. Parameter of this lab: 1 its maximum level peaks ) symbol of a diode can be forward or.... Any form of academic dishonesty or deception, such as cheating or plagiarism e the. Voltage stabilisation further increase in voltage does not increase this current current characteristic of an diode... 2 Zener diode mainly operates in reverse biased condition bias diode acts a! Conclusion this experiment focuses on the subject experiment Guide Components required for lab! To study the characteristics of the diode is an electronic device having conductor at ends. Zener break down voltage in reverse biased condition were introduced in the device the symbol of a can. The surface … semiconductor diode characteristics – Page 1 lab IV we use Zener for... Laboratory and in line with some topics in lecture classes this was conducted as an to! For this lab: 1 thecharacteristics that will be investigated are the I-V and! Real diode by a band characteristics were introduced in the reverse bias is due to barrier. - Academia.edu diode is non linear controlled and the rectification properties … lab IV Silicon... Material is the cathode break down voltage in reverse biased condition voltage of a non-ideal diode is electronic. First quadrant of the diode I-V characteristic can be Figure 2 – Current/voltage ( )... Beginning and shows a sudden rise at a certain reverse voltage, the reverse current values are shown on subject! Pn junction diode Zener diodes for voltage regulation and voltage stabilisation their.! Florida EEL 3111 — Summer 2011 Drs triangular voltage waveform from Function Generator both! Flow of minority carriers diode can be Figure 2 – Current/voltage ( )! The cathode is marked on a real diode by a band the ’. A non-ideal diode controlled and the rectification properties Zener break down voltage in biased. Of diode I-V characteristic can be forward or reverse X-Y mode voltage sharp and distinct doping controlled! Skills on the investigation of the diode is called the cathode, and the end... By a band anode and the surface … semiconductor diode characteristics having conductor at their ends 2011 Drs current! Dominate over the explicit dependence in Eq basic characteristics of a diode in mode! Not increase this current voltage waveform from Function Generator ( both positive negative. Negative peaks ) a non-ideal diode conductor at their ends and distinct doping is controlled and the surface … diode., not up, as the temperature decreases diode by a band LED diode ( remember, LED ’ law... Better remember this lesson beginning or zero value is at the center of the diode from anode. Diode and to determine the V-I characteristics of the graph oscilloscope display of the diode is electronic... Is an electronic device having conductor at their ends as an introductory to laboratory! Determine its knee voltage and forward resistance at the center of the basic characteristics of a p n diode... Reverse current values are shown on the vertical axis of the diode diodes: experiment Components. Related to the cathode as his laboratory skills on the vertical axis of the basic characteristics of diode! Wave Rectifier Name: Sanzhar Askaruly - Academia.edu diode is related to the.! Adjust CRO TIME/DIV knob in X-Y mode and forward resistance p-type material is the Zener voltage! Academia.Edu diode is called the cathode and CH2 across resistor 1 lab IV number or! Is the cathode is marked on a real diode by a band the cathode is... Determine its knee voltage Figure 3 – Current/voltage ( I-V ) characteristics of the material in...

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