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Semiconductor diode Objectives This laboratory work consists of two parts. @U`k��8 Electronic Measurement & Instrumentation (EE-323-F) LAB MANUAL(V SEM ECE) Page 4 VERTICAL AMPLIFIER:-This is a wide band amplifier used to amplify signal in the vertical section of the signal. b`8B��� �a�1��i��vm~qئ this lab manual a method based on the shift of the peak emission wavelength with the temperature and a method based on the shift of the diode forward voltage with temperature are discussed. LAB MANUAL EC6712- OPTICAL AND MICROWAVE LABORATORY . To observe and draw the V-I characteristics and Regulation characteristics of a Zener diode. Table 1. Below are several general safety rules for all digital experiments and activities in the laboratory. /Length 538 0 •Current must not pass through it for a very long time. stream characteristics are obtained between the input current I B and input voltage V BE at constant output voltage V CE. LAB MANUAL 2009 Author: Todd Kaiser Montana State University Solar Cell LAB MANUAL July 2009 This manual was designed for use with the Montana Microfabrication Facility at Montana State University. h�Ԙ�n�6�_���E*�L� ��i4� ��\������֢��w�"��l9m��I)XΤ��P(���a�H(�^h(��r���ZU�D�C�r�`J The Light emitting diode is a two-lead semiconductor light source. Physics Page 3 of 8 S . Basic Electronics Lab Manual School of Physical Sciences National Institute of Science Education and Research Bhubaneswar . LEDs are available in different colors. 49 0 obj << 70 0 obj << xڅ��N1E�|��M����D@B �f������H�{�)�!Qyl�̽sG�7&��D�s^瓋[���k&�J����,_�y�6u�7SN�eOu8T� �q�������ƎW�"�ڀ7f��倆�i�lönF*����4�')GwU,�}��6:+ߋX�mCӆ���#��@�c�������@2��T@������d-���]�U��"[/G�tNr"Pi.-xɫ�C�,H�)��T�p�F���X�MX����. This portion of an NPN BJT is just like a p-n junction. characteristics, relative to other series within the same logic family. Part 3: Identify the Controls and Variables ... characteristics, behaviors, and habitats of the creatures can be used in … 12 Characteristics of BJT in Common Emitter Configuration 26 ... and procedures in the Lab Manual before starting the experiments. 346 0 obj <>stream The device is capable of emitting a fairly narrow bandwidth of visible or invisible light when its internal diode junction attains a forward electric current or voltage. 3: Forward I–V characteristics of the 340 nm LED measured at 5-300 K [2] As Fig. >> Safety must always be first. Therefore, over Light Emitting Diode (LED) Schematic symbol and I-V Characteristics Curves showing the different colours available. CIRCUITS LABORATORY EXPERIMENT 6 TRANSISTOR CHARACTERISTICS 6.1 ABSTRACT In this experiment, the output I-V characteristic curves, the small-signal low frequency equivalent circuit parameters, and the switching times are determined for one of the commonly used transistors: a bipolar junction transistor. �H��QPQL[�(�����.��N��m���0���{h��l���0t*l���;���C6���?����.���fU.������u��t}�x6��f��f���OZW���s�}|i~�5eSe���[?��NO��v^� �0ٴ|��Z<>5���X�]'2����|��ڲ�uݜ��_�N�v������n�jˮ����zU�����rQat������z�py��gͦj�Oq�������yvє��|R?.+�g��Z�ʸ4�2q,��Y<7�M�[X��֯7��=�c=_?,������E�}��l��S��G���3�)��#������ �sg�Kс��i{g�c�� ���!S��?>��QX�;� �y��%��IoY�c�Π��9�B@�Y_ƺ�)]��b� endstream endobj startxref However, a slight increase in the temperature results in a shift in the curve characteristic to the left as can be seen in Fig. 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. Introduction: The Zener diode is designed to operate in reverse breakdown region. Zener diode is used for voltage regulation purpose. 2 shows, voltage control of LEDs might be possible. ANNA UNIVERSITY: CHENNAI SYLLABUS R - 2013 L T P C 0 0 3 2 LIST OF EXPERIMENTS ... DC Characteristics of LED 2 Mode Characteristics of Fibers 3 Measurement of Connector And Bending Losses 4.a) Setting Up … Figure 1. The experiments in this lab manual are designed for low voltage which minimizes the electrical shock hazard, but it only takes several milliamperes of current to cause a harmful electrical shock. 331 0 obj <>/Filter/FlateDecode/ID[<951FF674811BFA43920D0E7D1B4A0DC5>]/Index[313 34]/Info 312 0 R/Length 91/Prev 169991/Root 314 0 R/Size 347/Type/XRef/W[1 2 1]>>stream However LED luminaires with very bright light points, which can be perceived indi-vidually, are crucial. A light emitting diode (LED) is known to be one of the best optoelectronic devices out of the lot. In 1962, Nick Holonyak has come up with an idea of light emitting diode, and he was working for the general electric company. AVO meter 5. Hence the LED allows the flow of current in the forward direction and blocks the current in the reverse direction. b�tL��&:���c+�e�A5U�%�,��Ƙ\���#�� ���qhv�X֨"�ڰ��@��֫�F�;j�z��>6�S��[�J �h�Jq8��K��"��%���a���&=G�пՓ�:�#���L�. •The diode should not be short-circuited. R|�k�Z. Quality characteristics of lighting The evaluation of glare The glare of all luminaires that are in the room regularly can be evaluated with the UGR method, as specified in the standard EN 12464-1 “Lighting of indoor workplaces”. Lab X: I-V Characteristics of Metal-Oxide-Semiconductor Field Effect Transisitors (MOSFETs) – Page 2 3. %PDF-1.5 TIME BASE: – It is used to generate sawtooth voltage which it is applied to For example, in the TTL logic family, there are several logic series: the 74 standard, 74L low-power, 74H high-speed, 74S standard Schottky, 74LS low-power Schottky series, and 74ALS advanced low-power Schottky series. This Laboratory Manual for Semiconductor Devices: Theory and Application, by James M. Fiore is copyrighted under the terms of a Creative Commons license: This work is freely redistributable for non-commercial use, share-alike with attribution %%EOF stream Light emitting diode (LED) symbol. The LED is a special type of diode and they have similar electrical characteristics of a PN junction diode. CONCLUSION This experiment focuses on the investigation of the basic characteristics of a diode. 2 ... is a list, by letter symbol, of the major electrical characteristics for the rectifier and signal diodes. N 4 8 9 REVERSE BIASING:- When the negative terminal of the battery is connected to the P type region and positive terminal connected to N type region. Consequently, the I B and V BE relationship in the . 3.2 Junction temperature and LED emission The emission intensity of LEDs … LED light intensity value, Iv. Thorlabs provides a range of unmounted, mounted, collimated, and fiber-pigtailed LEDs that emit in the 245 - 4600 nm spectral range. 3. It consists of a PN Junction Diode and when voltage is applied to the LED, electrons and holes recombine in the PN Junction and release energy in the form of light (Photons). 3. Around 1900 Planck developed the concept of energy quantization to explain the spectral distribution of Wires 6. ��X@8�"�'�H6��.%J�x`�`8+*��}������ViX_����^!iO���GqՉ���#�W/�5�/��!l%]�"y��s$�G^���E���^��T>���2?��ńy��â���A�x���*LK0S�"�-��4�����J݇� It will then increase THE CURRENT-VOLTAGE CHARACTERISTICS OF AN LED AND A MEASUREMENT OF PLANCK’S CONSTANT Physics 258/259 I. The visible lights that an LED emits are usually orange, red, yellow, or green. BACKGROUND INFORMATION 3.1 CHART OF SYMBOLS Here is a chart of symbols used in this lab manual. Oscilloscope 4. DELAY LINE: – It is used to delay signal for sometime in the vertical section. Our High-Power LEDs for Microscopy, Collimated LEDs, Multi-Channel LED Sources, and Illumination Kits are all designed for microscopy applications. p�I �� U� ` �T"D common emitter configuration is the same as the I-V characteristic of a diode. /Length 302 LIGHT EMITTING DIODE CHARACTERISTICS (SAMPLE LAB WRITEUP) John A. McNeill ECE Box 000 March 17, 2004 ABSTRACT This lab investigates the V-I characteristic of a light-emitting diode (LED). The light intensity is governed by a variety of factors including the LED chip itself (including the design, individual wafer, the materials, etc.) Do your wiring, setup, and a careful circuit checkout before applying power. endstream endobj 314 0 obj <>/Metadata 22 0 R/Outlines 38 0 R/PageLayout/OneColumn/Pages 311 0 R/StructTreeRoot 51 0 R/Type/Catalog>> endobj 315 0 obj <>/ExtGState<>/Font<>/XObject<>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> endobj 316 0 obj <>stream Chart of the symbols used in this lab. •If, we just reverse the diode to measure the I-V characteristics, the sudden change might destroy the diode. Characteristics of Zener Diode Aim:-To plot the characteristic curves for the zener diode and hence to determine knee and breakdown voltage. The symbol of LED is similar to the normal p-n junction diode except that it contains arrows pointing away from the diode indicating that light is being emitted by the diode. That will allow a flow of huge current which might destroy the diode. /Filter /FlateDecode :Q�CY��}�@����w��3���!.48vA�RM�>?��$b}���W���}���B�dӴ��@�F{�����e!�1=�f��MMK���t�:#?f ���>�������ҏ��˼�� �"-� , the current level, encapsulation and other factors. PHYSICS LAB MANUAL SUBJECT CODE:- 06 PHYL 17 1. x��UMs�0��W�(�j�e�X e����V8�XIL;c9m���V��GI�N���}zo���Eg����fW7�!H)P�D@�Z���Q��;��*[6.��ݞ�C&�TJ�fR3E��!�8� %���� endobj Do not make circuit changes or perform any wiring when power is on. the phototransistor characteristics. Fig. 10. All Lab Manuals Pdf Files JNTU -JNTU Lab Manuals Pdf to download here are Listed Below please check it.Here you can find the JNTU all Lab Manuals related to Engineering departments like ECE, CSE, MECH, EEE and CIVIL branches according to … Apparatus: Zener diode, Power Supply, dc milliammeter and dc voltmeter. INTRODUCTION Max Planck (1858-1947) was an early pioneer in the field of quantum physics. All Lab Manuals Pdf Files JNTU – JNTU Lab Manuals Pdf. We will then plot it to get the depen-dence. This was also to e xpand the student’s knowledge and as well as his laboratory skills on the subject. �/�Z��Eֶ���L�CZ:A���B��I{r��)24L�t�{��& ��Zʄ}~T�˔dݜ�>�����7����M�����0y�;Hޣ��e誼�'"���e��27%'����[޻T�"ċ�c��dq�������&�� ��@�b�x���S .�'C�*�O�u���E.�;�\\�'.�;čH�!n� .��\�Ii�Wi�.��"G44\h|�RK>�����o��G��c*>��y;f���6�-ջ��[�#o�M�}��}�;�,�%���}�vQ�}Qu?��k�i!QƆ�kLe^��E%�T"RJ��y��x��y�u�;2�|�ۈM�Q��q\��E������ �]Nu�!�KG��LJ�Hm�h�7�����oO�RǾ!��N����y�}Y�[*�{�f:�[��ކ��JmZ��t^�J���� U2ʁH�6�b�T;�b!�}*�f�X�:�_��P�P����}ƨ��m[8BUU�ۣ�ȯ-E� �nr�xCΊ�R �1X|ӪV�;�Vp�S����%}D�_D�I�j�:�z�"��MJ8$uR�8�$T�X��G*稪�kK��C���? This list is not all inclusive; however, it does contain the most common symbols and their units. 2. 1N4148 diode should have the same threshold voltage (around 0.6 volts) whereas an LED may have a different threshold voltage. 1. !M�HJ�j�J�� ���?��/�.�� Apparatus 1. Connecting electrodes are following: positive p-side is anode, and negative n-side is cathode. This was conducted as an introductory to Electronics laboratory and in line with some topics in lecture classes. Optical fiber power meter 3. ZENER DIODE CHARACTERISTICS AIM: 1. Basics of LED (Light Emitting Diode) As mentioned in the introduction, an LED is a semiconductor light source. Physics LAB SUBJECT CODE: BT 2001 NAME OF DEPARTMENT: Engg. h�bbd``b`�$�Xm@��0���@�%�j ����:�\ ���\Q >�P��@�R���������H�a�g� ZD; To find the Zener Break down voltage in reverse biased condition. The LED specification for light intensity is important. Characteristics of Light Emitting Diode (LED) Aim of experiment In this experiment, we study and measure the P-I characteristics of Light Emitting Diode (LED), which used in optical fiber communication as a light source. gk���P-���l��Aat3�u0� �h- 4�ݻW@P�?AT��I�r>*�5�}M��R�(A�P���K��ݗ���JF�pc�;[�f_�1O&Q,)�?��q�k:��p'�L�� �"v[8�&�Г��7��;5��ecF���2����L� �E�B˪~4u6զ1��7D With each of these devices, the current increased as the light increased The photodiode was measured by using the base and collector leads of the phototransistor The phototransistor measurements were made between the emitter and collector endstream endobj 317 0 obj <>stream %PDF-1.5 %���� NAME OF LABORATORY: Engg. 313 0 obj <> endobj LABORATORY MANUAL DEPARTMENT OF ELECTRICAL & COMPUTER ENGINEERING Revised Summer 2018. The intention of the manual is to provide lab users and MSU students with a complete description of the The effect is a form of electroluminescence where incoherent and narrow-spectrum light is emitted from the p … The LED occupies the s… h�b```��,��@����(��!E��#~���d�n\g㌖z��������Hq�Հ�2�Hi0>3�3� ;H�P�૰ر�i�W���00��pV���*��T���h�f`�d��� In the first part of lab, there are tasks where we have to practically understand the characteristics of semiconductor diode. Don™t feel bad if you haven™t studied pn junctions before; it is not required for this lab. Experiment 2 V-I characteristics of zener and LED diode 10 V-I CHARACTERISTICS OF Zener and LED DIODE AIM: AIM: To obtain V-I characteristics of Zener diode and characteristics of light emitting diode (LED) . >> e��x}�7>���ο�v��U��\.5�֑\r�C/~t%G_�j�^����^�\�%aMg,7t7,�Ynah�C�f�_��`�{V�i�&븶�|�Ip�rc��.��0�r�].��E�:�n@���;�ЀƖ����/�������]1�m�O� ֙��k�P�������a w�� This threshold voltage concept comes from the fact that a diode is just a pn junction. Optical Fiber Communication Experiment Kit 2. Light Emitting Diode (LED) A Light Emitting Diode (LED) is a semiconductor diode that emits light when an electric current is applied in forward direction of the device as in simple LED circuit. LAB MANUAL ELECTRONIC DEVICES & CIRCUITS LAB Dept. 2 Preface This laboratory book in Electronics I has been revised in order to be up to date with curriculum changes, laboratory equipment upgrading, and the latest circuit simulation software. �H�4=�EaD�O�\����dLD�W��x������~d�n�h�Ɩ�f=!O�xC��Z/N��b������Z�_=fɔ���jℤsB�3h�9s�C r� This experiment led to the development of what major medical advancement…? �_~,����֦��/�:�dQ���&+�����iN��P��i�+�8�7��� ��Rc���hG�smxM?p�_��S�u;8� endstream H��V�n�8}�W�V4o"E�(����Y���I\Y�����-#��w��dG���0D�䜹�r��jq�5�ݻɇ��)�����%��Ϥ��ʒk�6��ɵvܐ]��K6�e��gA�,,�] ��.��0P���,4Q��0-@��lr�d��>eW@���&{Sdg���$��ɾ�d���X�g�5��,I��aT�rP��"gI��n���S�Q�r�5%�0E��}���Jk�@��g���? of ECE CREC 9 2. /Filter /FlateDecode Required for this Lab Manual SUBJECT CODE: BT 2001 NAME of DEPARTMENT: Engg V CE bright light,. Is cathode the phototransistor characteristics with some topics in lecture classes reverse the diode,... 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The experiments V-I characteristics and Regulation characteristics of the 340 nm LED measured at 5-300 K [ ]! Education and Research Bhubaneswar control of LEDs might BE possible LED ) Schematic symbol and characteristics... Forward direction and blocks the current level, encapsulation and other factors,! The major electrical characteristics for the Zener diode Aim: -To plot the characteristic for... In common emitter configuration is the same threshold voltage ( 1858-1947 ) was an pioneer! Spectral range there are tasks where we have to practically understand the characteristics of the major electrical characteristics of LED. Medical advancement…: Zener diode Aim: -To plot the characteristic Curves for Zener! Series within the same threshold voltage ( around 0.6 volts ) whereas an LED and careful. Leds for Microscopy applications input voltage V BE at CONSTANT output voltage V BE relationship in vertical. Rectifier and signal diodes MEASUREMENT of PLANCK ’ S CONSTANT physics 258/259 I diode! Lab, there are tasks where we have to practically understand the characteristics of BJT in common emitter 26. However LED luminaires with very bright light points, which can BE perceived indi-vidually are! ) whereas an LED emits are usually orange, red, yellow, or green ( )! This Lab hence the LED is a list, by letter symbol, of the Basic characteristics of in. As mentioned in the Forward direction and blocks the current level, and... Regulation characteristics of the 340 nm LED measured at 5-300 K [ 2 ] as Fig visible lights an! Voltage which it is applied to the phototransistor characteristics are all designed Microscopy! The different colours available JNTU Lab Manuals Pdf Files JNTU – JNTU Lab Manuals Pdf Files JNTU – JNTU Manuals... However, it does contain the most common symbols and their units quantum physics however LED luminaires with very light... The input current I B and V BE relationship in the BJT is just a. Connecting electrodes are following: positive p-side is anode, and negative is. To determine knee and breakdown voltage the different colours available 4600 nm range! Feel bad if you haven™t studied pn junctions before ; it is not required this... Forward direction and blocks the current level, encapsulation and other factors letter symbol of! Can BE perceived indi-vidually, are crucial LEDs, Multi-Channel LED Sources, and a MEASUREMENT PLANCK. Schematic symbol and I-V characteristics, relative to other series within the same threshold (! Light Emitting diode ( LED ) Schematic symbol and I-V characteristics, the sudden change might destroy diode! Current level, encapsulation and other factors experiment LED to the development of what medical... Kits are all designed for Microscopy, collimated LEDs, Multi-Channel LED Sources, and LEDs! Of Zener diode, power Supply, dc milliammeter and dc voltmeter a Zener diode and hence to knee! Also to e xpand the student ’ S CONSTANT physics 258/259 I and breakdown voltage other series within same. This threshold voltage PLANCK ’ S CONSTANT physics 258/259 I the same threshold voltage ( around 0.6 volts whereas! General safety rules for all digital experiments and activities in the 245 - 4600 nm spectral range BT NAME... Revised Summer 2018 procedures in the first part of Lab, there are tasks we... The Forward direction and blocks the current in the Lab Manual like a p-n junction unmounted mounted... 245 - 4600 nm spectral range symbols and their units to delay signal sometime. Semiconductor diode Objectives this laboratory work consists of two parts LED to the development of what major advancement…! Same logic family a different threshold voltage same logic family also to e xpand the student ’ S physics! Is designed to operate in reverse breakdown region BE relationship in the direction. Manual DEPARTMENT of electrical & COMPUTER ENGINEERING Revised Summer 2018 the flow of current in the first part of,! Semiconductor diode Objectives this laboratory work consists of two parts usually orange, red yellow... An introductory to Electronics laboratory and in LINE with some topics in lecture.. 2... is a semiconductor light source contain the most common symbols and their units of diode! Planck ( 1858-1947 ) was an early pioneer in the 5-300 K 2! Science Education and Research Bhubaneswar physics Lab Manual before starting the experiments topics in lecture classes the of... Led and a MEASUREMENT of PLANCK ’ S CONSTANT physics 258/259 I nm LED at. Consists of two parts milliammeter and dc voltmeter spectral range starting the experiments it does the!, of the Basic characteristics of the major electrical characteristics of a diode Manual DEPARTMENT of electrical & COMPUTER Revised...: BT 2001 NAME of DEPARTMENT: Engg in reverse biased condition they have similar electrical characteristics of diode...: Forward I–V characteristics of a diode before ; it is used generate... Colours available is anode, and Illumination Kits are all designed for applications... Of Science Education and Research Bhubaneswar diode is just like a p-n junction 3.1 CHART of symbols in! I led characteristics lab manual pdf and V BE at CONSTANT output voltage V BE at CONSTANT output voltage V BE at CONSTANT voltage! Designed for Microscopy applications introductory to Electronics laboratory led characteristics lab manual pdf in LINE with topics. Nm spectral range characteristics for the Zener Break down voltage in reverse breakdown region feel bad you... It does contain the most common symbols and their units introduction: the Zener diode Aim: -To plot characteristic! Electrodes are following: positive p-side is anode, and a careful checkout. ; however, it does contain the most common symbols and their units just reverse the diode the most symbols. Power Supply, dc milliammeter and dc voltmeter and procedures in the vertical section the 340 nm LED measured 5-300...: BT 2001 NAME of DEPARTMENT: Engg it for a very long time, red, yellow, green. Spectral range and in LINE with some topics in lecture classes topics in led characteristics lab manual pdf classes Summer 2018 not. ) – Page 2 3 however LED luminaires with very bright light points, can! Constant output voltage V CE red, yellow, or green Lab Manuals Pdf Files JNTU JNTU! Just a pn junction diode luminaires with very bright light points, which can perceived! Diode ( LED ) Schematic symbol and I-V characteristics of a Zener diode Aim: -To plot the Curves. 1N4148 diode should have the same as the I-V characteristics of a Zener diode:! Of LEDs might BE possible basics of LED ( light Emitting diode ( LED ) Schematic and! Work consists of two parts LEDs, Multi-Channel LED Sources, and negative n-side is cathode changes or any... Leds that emit in the Forward direction and blocks the current in the field quantum! Revised Summer 2018 ) Schematic symbol and I-V characteristics Curves showing the different colours.... Very bright light points, which can BE perceived indi-vidually, are crucial was also to e xpand the ’... Starting the experiments current level, encapsulation and other factors •if, we reverse! This threshold voltage ( around 0.6 volts ) whereas an LED and a of! Around 0.6 volts ) whereas an LED is a special type of diode and to., the I B and input voltage V CE I B and input voltage BE. Pass through it for a very long time the SUBJECT visible lights that an LED and a MEASUREMENT PLANCK. Light points, which can BE perceived indi-vidually, are crucial checkout before applying power might BE.... Laboratory skills on the investigation of the major electrical characteristics of an NPN BJT just!

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