Řídicí jednotka pulzního měniče s mikropočítačem
Loading...
Downloads
2
Date issued
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Vysoká škola báňská - Technická univerzita Ostrava
Location
Signature
Abstract
This bachelor thesis solves the implementation of software for microcontroller AT89S52, which is then connected to the DC-DC converter. On the output of DC-DC converter is connected to resistive and motoric loads. Source code was created in the assembler using the program Keil. Algorithm for controlling DC-DC converter is bipolar and unipolar. I was able to achieve very high accuracy desired frequency and duty cycle. Deviation is not greater than 1%.
The first chapter describes the educational system which includes microcontroller AT89S52, his contain and basic parameters. Next chapter characterizes the performance unit, principle of DC-DC unit, methods of control and their differences. In the third part is described software, displayed diagrams and also control. Next and last part shows the measured results. In this chapter I verified the functionality of the software and describes the important value at different loads.
Description
Subject(s)
Microprocessor, microcontroller AT89S52, DC-DC converter, bipolar method, unipolar method, pulse width modulation, PWM