Detail publikačního výsledku

AC analysis of switched capacitor filters in SPICE-family programs

BIOLEK, D.; BIOLKOVÁ, V.; KOLKA, Z.

Originální název

AC analysis of switched capacitor filters in SPICE-family programs

Anglický název

AC analysis of switched capacitor filters in SPICE-family programs

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The paper describes a method for the analysis of the frequency characteristics of switched-capacitor circuits in SPICE-family programs, which do not provide a direct AC analysis of such networks. The method starts from the z-domain charge equations of switched circuit, which are modified to current equations. Based on these equations, macromodels of capacitor and operational amplifier are constructed and implemented as SPICE subcircuits. The method generates correct results for two-phase switched circuits containing ideal switches and ideal transforming cells such as operational amplifiers. For a convenient drawing of the model via schematic editor, special schematic symbols of the components are designed such that the user can define how the nodes are interconnected by switches during each switching phase, and also select the input and output samples for a definition of the corresponding frequency characteristics.

Anglický abstrakt

The paper describes a method for the analysis of the frequency characteristics of switched-capacitor circuits in SPICE-family programs, which do not provide a direct AC analysis of such networks. The method starts from the z-domain charge equations of switched circuit, which are modified to current equations. Based on these equations, macromodels of capacitor and operational amplifier are constructed and implemented as SPICE subcircuits. The method generates correct results for two-phase switched circuits containing ideal switches and ideal transforming cells such as operational amplifiers. For a convenient drawing of the model via schematic editor, special schematic symbols of the components are designed such that the user can define how the nodes are interconnected by switches during each switching phase, and also select the input and output samples for a definition of the corresponding frequency characteristics.

Klíčová slova

Switched capacitor; SC; AC analysis; frequency characteristic; SPICE

Klíčová slova v angličtině

Switched capacitor; SC; AC analysis; frequency characteristic; SPICE

Autoři

BIOLEK, D.; BIOLKOVÁ, V.; KOLKA, Z.

Rok RIV

2016

Vydáno

14.10.2015

Nakladatel

AOS L. Mikuláš

Místo

L. Mikuláš, Slovensko

ISBN

978-80-8040-508-3

Kniha

Proceedings of the KIT 2015

Strany od

1

Strany do

6

Strany počet

6

BibTex

@inproceedings{BUT118257,
  author="Dalibor {Biolek} and Viera {Biolková} and Zdeněk {Kolka}",
  title="AC analysis of switched capacitor filters in SPICE-family programs",
  booktitle="Proceedings of the KIT 2015",
  year="2015",
  pages="1--6",
  publisher="AOS L. Mikuláš",
  address="L. Mikuláš, Slovensko",
  isbn="978-80-8040-508-3"
}