ECE Undergraduate Laboratories
ECE 392 - Electrical Engineering Laboratory II

Lab 8: Design Project


After completing seven series of experiments described in this manual you should have gained sufficient experience with analog and some digital circuits to venture into an exciting area of design and more independent work. If the time allows student teams should select their own circuit projects, assemble, and test them. It is suggested to utilize parts and circuit elements already used in this course and combine them in a new design. If, however, the students prefer to use other components, circuits, or sensors they are only encouraged to do so. The project should start with PSPICE simulation of the circuit, which later will be compared with the result of experiments.

Several experiments described in this manual as optional, like the one at the end of Experiments I, may be performed now if there was no time for it earlier. An interesting project may include a combination of analog and digital circuits, like an amplifier with adjustable gain or a filter with adjustable bandwidth, in which parameters are changed by digitally controlled transmission gates (analog switches). Another example maybe a three stage amplifier with high input impedance achieved with an FET, a common emitter amplifier with a BJT (like in Lab 3) and a BJT voltage follower. The limits are set only by time and imagination.


Provide a brief description and a schematic of a circuit you plan to build. Describe also the expected circuit performance.


Make it brief but do not skip essentials: schematics, performance data and, above all, your comments and conclusions.