Kevin Vogel

BEng Electrical & Electronics Engineering
BEng Peirianneg Drydanol Ac Electronig

Temperature control of a device under test with a Peltier element.

Rheoli tymheredd dyfais sy'n cael ei phrofi gydag elfen Peltier.

This bachelor work focuses on the creation of a prototype for the temperature control of a Peltier element. With the finished prototype, it is possible to analyse the thermal properties of a component. For this purpose, a microcontroller-based temperature control for a Peltier element is developed. The work covers the hardware design as well as the programming of the microcontroller. Furthermore, a computer software is developed to retrieve temperature data from the microcontroller. Also, a simulation of the thermal system is created as well as a circuit diagram and a PCB (printed circuit board). Furthermore, the differences between the simulation and the prototype are analysed as well, as various hardware and software problems are discussed. The problems include, for instance, electromagnetic interference as well as overheating of MOSFETs and timestamp problems in the computer software.

Mae'r gwaith baglor hwn yn canolbwyntio ar greu prototeip ar gyfer rheoli tymheredd elfen Peltier. Gyda'r prototeip gorffenedig, mae'n bosibl dadansoddi priodweddau thermol cydran. I'r diben hwn, mae rheolydd tymheredd sy'n seiliedig ar ficroreolydd ar gyfer elfen Peltier yn cael ei ddatblygu. Mae'r gwaith yn cwmpasu dyluniad y caledwedd yn ogystal â rhaglennu'r microreolydd. At hynny, mae meddalwedd cyfrifiadurol yn cael eu datblygu i adalw data tymheredd o'r microreolydd. Hefyd, mae efelychiad o'r system thermol yn cael ei greu yn ogystal â diagram cylched a PCB (bwrdd cylched brintiedig). At hynny, mae’r gwahaniaethau rhwng yr efelychiad a'r prototeip hefyd yn cael eu dadansoddi, gan fod gwahanol broblemau caledwedd a meddalwedd yn cael eu trafod. Mae'r problemau'n cynnwys, er enghraifft, ymyrraeth electromagnetig yn ogystal â gor-boethi MOSFETs a phroblemau stampiau amser yn y feddalwedd gyfrifiadurol.