| May 8th, 2017 09:22 AM | |
| Vishal Kotkar | Re: edc question papers cusat the syllabus for the Electronic Devices & Circuits as well as the previous years question paper on the same required for reference purpose has been provided below: Syllabus for Electronic Devices & Circuits: 1. Semiconductor Diodes 2. Diodes The diode is a 2-terminal device. A diode ideally conducts in only one directionUpper Saddle River, New Jersey 07458 Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky 3. Diode Characteristics Conduction Region Non-Conduction Region • The voltage across the diode is 0 V • The current is infinite • The forward resistance is defined as RF = VF / IF • The diode acts like a short Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky • All of the voltage is across the diode • The current is 0 A • The reverse resistance is defined as RR = VR / IR • The diode acts like open 4. Semiconductor Materials Materials commonly used in the development of semiconductor devices: • Silicon (Si) • Germanium (Ge) • Gallium Arsenide (GaAs) All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky 5. Doping The electrical characteristics of silicon and germanium are improved by adding materials in a process called doping. There are just two types of doped semiconductor materials: n-type p-type • n-type materials contain an excess of conduction band electrons. • p-type materials contain an excess of valence band holes. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky 6. p-n Junctions One end of a silicon or germanium crystal can be doped as a p-type material and the other end as an n-type material. The result is a p-n junction. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky 7. p-n Junctions At the p-n junction, the excess conduction-band electrons on the n-type side are attracted to the valence-band holes on the p-type side. The electrons in the n-type material migrate across the junction to the p-type material (electron flow). The electron migration results in a negative charge on the p-type side of the junction and a positive charge on the n-type side of the junction. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky The result is the formation of a depletion region around the junction. 8. Diode Operating Conditions A diode has three operating conditions: • No bias • Forward bias • Reverse bias. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky 9. Diode Operating Conditions No Bias • No external voltage is applied: VD = 0 V • No current is flowing: ID = 0 A • Only a modest depletion region exists. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky 10. Diode Operating Conditions Reverse Bias External voltage is applied across the p-n junction in the opposite polarity of the p- and n-type materials. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky • The reverse voltage causes the depletion region to widen. • The electrons in the n-type material are attracted toward the positive terminal of the voltage source. • The holes in the p-type material are attracted toward the negative terminal of the voltage source. Electronic Devices & Circuits Question Paper of CUSAT   |
| May 8th, 2017 09:17 AM | |
| Unregistered | Re: edc question papers cusat Hi I would like to have the syllabus for the Electronic Devices & Circuits as well as the previous years question paper on the same required for reference purpose? |
| December 1st, 2015 12:29 PM | |
| nilesh | edc question papers cusat Discuss about edc question papers cusat here. Welcome to Courses.ind.in and this page is for edc question papers cusat discussion. If you are looking for information on edc question papers cusat then ask your question is as much details as possible in the “Reply” box provided below. The more detailed your question will be, the more easy will it be for our experts to answers your query. And if you have any updated or latest information on edc question papers cusat, then please share you knowledge with our experts in the “Reply” box below. Your reply will be published here and your knowledge can help many people. Thanks for stopping by at Courses.ind.in. Please visit again. |
