edurant.com > MSOE > SEED > Project Summary

1996-97 EE Senior Design: Team ß Project Summary

Problem Statement

A common problem in undergraduate engineering laboratories is accurately setting and measuring power supply effects.

This is due to analog controls which are subject to drift and aging, making them difficult to fine tune.

Team ß's power supply will let the user enter parameters on a keypad, much as modern oscilloscopes provide discrete control via keyed input.

Synopsis

In contrast to conventional college laboratory power supplies, Push-Button Power is stable and user-friendly. The device features fixed 5V and ±15V supplies and a variable ±35V supply. A 32-bit Motorola 68F333 microcontroller manages a combination of switching and digitally controlled shunt supplies. The user interface consists of a custom keypad for input and a four-line LCD panel for output.