Publication detail

SIMPLE D/A CONVERTER WITH MICROCONTROLLER

VRÁNA, J.

Original Title

SIMPLE D/A CONVERTER WITH MICROCONTROLLER

Type

conference paper

Language

English

Original Abstract

All microcontrollers have digitals inputs and outputs. Some of them include A/D converters and n particular D/A converters. Digital output voltage can have more than two states. It can be achieved by digital modulation and a simple analogue filter. In this paper sigma-delta modulation and PWM modulation are realized on an ATmega8 microcontroller made by Atmel. The filters with various cutoff frequencies were successively connected to the digital output and the transfer characteristic and suppression of a.c. voltage were measured. From the result it can be seen that the sigma-delta modulation is more suitable than PWM modulation for use in D/A converters.

Keywords

sigma-delta PWM microcontroller D/A converter

Authors

VRÁNA, J.

RIV year

2005

Released

28. 4. 2005

Location

Brno

ISBN

80-214-2890-2

Book

Proceedings of the 11th conference Student EEICT 2005

Pages from

472

Pages to

476

Pages count

5

BibTex

@inproceedings{BUT14353,
  author="Jaroslav {Vrána}",
  title="SIMPLE D/A CONVERTER WITH MICROCONTROLLER",
  booktitle="Proceedings of the 11th conference Student EEICT 2005",
  year="2005",
  volume="11",
  pages="5",
  address="Brno",
  isbn="80-214-2890-2"
}