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1. WO2002019523 - FILTER SYSTEM AND METHOD FOR FILTERING AN ANALOG SIGNAL

Publication Number WO/2002/019523
Publication Date 07.03.2002
International Application No. PCT/EP2001/008719
International Filing Date 27.07.2001
Chapter 2 Demand Filed 20.02.2002
IPC
H02M 1/00 2007.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
1Details of apparatus for conversion
H02M 1/12 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
1Details of apparatus for conversion
12Arrangements for reducing harmonics from ac input or output
CPC
H02M 1/12
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
1Details of apparatus for conversion
12Arrangements for reducing harmonics from ac input or output
H02M 1/4225
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
1Details of apparatus for conversion
42Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
4208Arrangements for improving power factor of AC input
4225using a non-isolated boost converter
Y02B 70/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
70Technologies for an efficient end-user side electric power management and consumption
10Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Y02P 80/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
80Climate change mitigation technologies for sector-wide applications
10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Applicants
  • INFINEON TECHNOLOGIES AG [DE]/[DE] (AllExceptUS)
  • FELDTKELLER, Martin [DE]/[DE] (UsOnly)
Inventors
  • FELDTKELLER, Martin
Agents
  • BICKEL, Michael
Priority Data
100 42 587.930.08.2000DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) FILTERANORDNUNG UND VERFAHREN ZUR FILTERUNG EINES ANALOGSIGNALS
(EN) FILTER SYSTEM AND METHOD FOR FILTERING AN ANALOG SIGNAL
(FR) DISPOSITIF FILTRE ET PROCEDE DE FILTRAGE D'UN SIGNAL ANALOGIQUE
Abstract
(DE)
Die Erfindung betrifft eine Filteranordnung und ein Verfahren zur Filterung eines analogen Signals. Die Filteranordnung weist folgende Merkmale auf: eine Analog-Digital-Wandlereinheit (AD) mit einem Eingang, dem ein analoges Filtereingangssignals (FES) zugeführt ist, und einem Ausgang, an dem ein Impulssignal (IS) zur Verfügung steht, das eine Folge von Impulsen aufweist, wobei die Anzahl der Impulse pro Zeiteinheit vom Betrag des Filtereingangssignals (FES) abhängig ist; eine Zähleranordnung (ZA), der das Impulssignal (IS) zugeführt ist und die wenigstens einen Zähler (Z; Z1, Z2) aufweist; eine Digital-Analog-Wandlereinheit (DA), der jeweils einmal während eines Auswerteintervalls (Ta) ein Zählerstand (ZS) des wenigstens einen Zählers (Z; Z1, Z2) zur Bildung eines analogen Filterausgangssignals (FAS) zugeführt ist, wobei die Amplitude des Filterausgangssignals (FAS) von dem Wert des Zählerstandes abhängig ist.
(EN)
The invention relates to a filter system and to a method for filtering an analog signal. The inventive filter system comprises an analog to digital converter (AD) with an input to which an analog filter input signal (FES) is supplied, and with an output at which an impulse signal (IS) is available that comprises a sequence of impulses, the number of the impulses per time unit depending on the magnitude of the filter input signal (FES). The filter system is further provided with a counter system (ZA) to which the impulse signal (IS) is supplied and that contains at least one counter (Z; Z1, Z2). At least once during an interval of evaluation (Ta) a counter reading (ZS) of the at least one counter (Z; Z1, Z2) is supplied to a digital to analog converter (DA) to produce an analog filter output signal (FAS), the amplitude of the filter output signal (FAS) depending on the value of the counter reading.
(FR)
L'invention concerne un dispositif filtre et un procédé de filtrage d'un signal analogique. Ledit dispositif filtre est composé d'une unité de conversion analogique/numérique (AD) comportant une entrée recevant un signal d'entrée de filtre analogique (FES) et une sortie fournissant un signal d'impulsions (IS) présentant une succession d'impulsions, le nombre d'impulsions par unité de temps dépendant de la valeur du signal d'entrée de filtre (FES) ; d'un dispositif compteur (ZA) recevant le signal d'impulsions (IS) et comportant au moins un compteur (Z, Z1, Z2) ; et d'une unité de conversion numérique/analogique (DA) recevant respectivement une position de compteur (ZS) du ou des compteurs (Z, Z1, Z2) au cours d'un intervalle d'exploitation (Ta) pour la création d'un signal de sortie de filtre analogique (FAS), l'amplitude du signal de sortie de filtre analogique (FAS) dépendant de la valeur de la position de compteur.
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