Microconverter aided time constant measurement

Author

Da Silva, Jaidilson Jó ; Neto, Felix Rodrigues ; Filho, Manoel Alves ; Da Silva, Alfranque A. ; Barbosa, O.O. ; Wanzeller, Miguel Gonçalves ; Neto, J.S.R.

Author_Institution

Dept. of Electr. Eng., Fed. Univ. of Campina Grande, Brazil

fYear

2004

fDate

16-18 Feb. 2004

Firstpage

184

Lastpage

187

Abstract

A single time constant (STC) circuit is that circuit which is composed of, or can be reduced to, one reactive component and one resistance. An STC circuit formed of a capacitance C and a resistance R has a time constant τ=RC. Although an STC circuit is quite simple, it plays a significant role in the project and analysis of linear and digital circuits. In this paper, the charge time of a capacitance has been evaluated using an ADuC812 microconverter. A time measurement is obtained employing the 12 bit converter ADC₀ input, and DAC₀ and DAC₁ outputs included in the microconverter. Several time constants were used and the results obtained were excellent.

Keywords

RC circuits; analogue-digital conversion; digital-analogue conversion; passive networks; time measurement; ADC; ADuC812 microconverter; DAC; STC circuit; capacitance charge time; microconverter aided time constant measurement; reactive component; resistance; single time constant circuit; Analog-digital conversion; Capacitance; Capacitors; Counting circuits; Digital circuits; Electric resistance; Equations; Signal generators; Time measurement; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Communications and Computers, 2004. CONIELECOMP 2004. 14th International Conference on

Print_ISBN

0-7695-2074-X

Type

conf

DOI

10.1109/ICECC.2004.1269570

Filename

1269570