Logic Tester

Topics: Transistor, Bipolar junction transistor, MOSFET Pages: 34 (8032 words) Published: April 14, 2013
Laboratory Handbook
Stage 1
Semester 2

Electronics Applications Project

Electronic Applications (ENG1030M) Module overview
This laboratory based single module (100 hours total) consists of one 3 hour session per week and has 3 main parts. Each part involves practical and written work, these are shown below in chronological order. You should be advised that that the lab sessions use up 36 hours and therefore you will be expected to use the remaining 64 hours in background work, which will include reading the lab script before the lab session and familiarising yourself with the software package, Proteus, used in this module. Project #1. Radio receiver Time allocated 3 weeks Approx weighting Logbook 50% Hardware 50%

This project requires the construction of an audio amplifier and an AM receiver from a kit of parts supplied. It is therefore a relatively simple construction and testing exercise, however good build quality is essential for satisfactory performance. #2. 16 channel IC logic tester 5 weeks Logbook 50% Hardware 50%

This project is more demanding, since it requires the design of a printed circuit board (PCB) using the CAD package, Proteus, on the PCs. The PCB is then used in the construction and testing of the logic tester. Student will work in pairs for this project.

#3. Semiconductors

4 weeks

Logbook 50% MCQ 50%

This final project consists of a series of measurement and design tasks including building up a surface mount PCB, which will form a development board for a series of MOSFET experiments. This section will also give an introduction to recent sustainability legislation affecting electronic manufacturing. In addition to the 3 projects you will also be expected to obtain a basic knowledge of the software that you will be using, namely Proteus. You will need to work through the Proteus handbook, available in Blackboard, during the weeks prior to project #2 (at times other than the lab sessions) in order to be ready for the PCB design exercise in project #2. You will be required to use a new logbook for this module, ideally, one which has alternate ruled and graph pages. This logbook will be collected and marked at regular intervals. At the end of this lab script is an example of the logbook marking scheme. A copy of this will be given to you at the beginning of the module and is also available for download from Blackboard. Make sure this copy is securely attached at the beginning of your logbook. Your logbook will be strictly marked against this marking scheme so make sure you cover all the points on the scheme.

© University of Bradford

Page 1 of 45

Revised December 2010

Electronic Applications Project Make & Test 1 - Radio Receiver Project


Introduction In order to convey information from one place to another by means of a radio wave, the signal information must modify a radio frequency (rf) wave (carrier). This modulation may be: a process of changing the amplitude of the rf carrier - amplitude modulation (am) - or a process of changing the frequency of the rf carrier - frequency modulation (fm) Successful fm radio is difficult to achieve, especially for the novice, since spurious capacitance effects impair reliable reception. Am radio offers reliable reception, a fair choice of programme material and enables easy construction of working receivers. Although the fidelity of am broadcasts does not match up to that offered on fm transmissions, the availability of cheap am radio ICs assists greatly in receiver design. Unlike the intermediate frequency techniques employed in the universally used superhet radio receiver design, a tuned radio frequency (trf) circuit is employed in this project. Superhet receivers are generally not suitable for the beginner to electronic project construction as they are generally difficult to adjust and align. The current consumption of this circuit is only about 4mA, allowing more than 50 hours of use from a standard alkaline...
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