Lab Report L312

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  • Topic: Electronic design automation, Common emitter, Electronic amplifier
  • Pages : 13 (3524 words )
  • Download(s) : 8
  • Published : October 3, 2012
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NANYANG TECHNOLOGICAL UNIVERSITY

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ANALOG CIRCUIT DESIGN LAB312 REPORT (S2-B4a-04)

Student name: xxx

Student no: xxx

Group: xxx

Date of submission: xxx

TABLE OF CONTENTS

1. Introduction……………………………………………………….3 • 1.1 Background…………………………………………..3 • 1.2 The Capture Work Environment……….…………. 4 • 1.3 The PSPICE A/D Simulation Environment……… 5 • 1.4 Objective……………………………………………. 6 • 1.5 Scope ………………………………………………. 6 2. Section one……………………………………………………… 6 • 2.1 Diode Clipper Circuit………..………………………….. 6 • 2.2 Schematic Capture of Diode Clipper Circuit ………… 7 • 2.3 Circuit Simulation of Diode Clipper Circuit………….. 8 3. Section Two……………………………………………………… 13 • 3.1 Common-Emitter Circuit………………………………... 13 • 3.2 Schematic Capture and DC analysis of Common-Emitter Amplifier………………………………………………………. 14 4. Conclusion………………………………………………………….18 5. References…………………………………………………………18 6. Appendix A………………………………………………………… 19 7. Appendix B………………………………………………………… 20 8. Appendix C………………………………………………………… 21 9. Appendix D………………………………………………………… 22

1. INTRODUCTION
1. BACKGROUND
Schematic diagrams are used to graphically represent the components and interconnections of electrical circuits. In the past, schematics were drafted using manual drawing techniques. Up until the late 1970s, the only schematic drafting aids were plastic drawing templates. Back in the late 1970s, CAD (Computer Aided Design) systems based on mainframe and mini-computer technology were just starting to see use in larger companies, but these were very expensive. Simple tasks like routine schematic drafting were difficult to cost justify. But these situations changed with the arrival of the IBM PC and low cost CAD software such as AutoCAD. Following the foot steps of AutoCAD, OrCAD software was introduced in 1985 and was quickly accepted, largely due to ease of use, speedy performance on PC workstations, and low cost.

OrCAD is a proprietary software tool suite used primarily for electronic design automation. The software is used mainly to create electronic prints for manufacturing of printed circuit boards, by electronic design engineers and electronic technicians to manufacture electronic schematics and diagrams, and for their simulation. The name OrCAD is a portmanteau, reflecting the software's origins: Oregon + CAD. The OrCAD product line is fully owned by Cadence Design Systems. The latest iteration has the ability to maintain a database of available integrated circuits. This database may be updated by the user by downloading packages from component manufacturers, such as Analog Devices or Texas Instruments. Another announcement was, that ST Microelectronics will offer OrCAD PSpice models for all the power and logic semicontuctors, since PSpice is the most used circuit simulator. Intel offers reference PCBs designed with Cadence PCB Tools in the OrCAD Capture format for embedded and personal computers. The OrCAD EDA software namely, OrCAD Capture and OrCAD PSpice A/D are used in the laboratory session L312. The OrCAD Capture software is used to create schematics for mixed signal or analog designs. OrCAD capture helps to generate a circuit file set, which contains the circuit net list and analysis commands, which are to be read by OrCAD PSpice A/D for simulation. The OrCAD PSpice A/D is a simulation program that helps to model the behavior of a circuit containing any mix of digital and analog devices. It computes and formulates these files into meaningful graphical plots that can be marked for display directly from the schematic page using markers. It also helps to test and refine the design before hardware implementation by functioning as a software-based breadboard of the circuit. The simulator also assists to...
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