CAPACITANCE-TO-FREQUENCY CONVERTER CIRCUIT FOR CAPACITIVE TRANSDUCERS

The invention relates to a capacitance-to-frequency converter circuit for capacitive transducers, formed by a ring oscillator (2000) including capacitors having a capacitance that varies with the magnitude to be measured, a binary counter (3000) which supplies a binary digital output, a parallel-ser...

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Bibliographische Detailangaben
Hauptverfasser:	BERENGUER PEREZ, ROC, SEVILLANO BERASATEGUI, JUAN FRANCISCO, VAZ SERRANO, ALEXANDER, PARDO SANCHEZ, DANIEL, ZALBIDE AGIRREZABALAGA, IBON, MERINO GUEVARA, AMAIA, GIL-NEGRETE LABORDA, NERE, YANGUAS AMATRIAIN, MAITE, AYERDI OLAIZOLA, ISABEL, AGUIRREURRETA GARIN, ANA, UBARRETXENA BELANDIA, ARITZ, MAYORDOMO LASTRA, IKER, GARCIA-ALONSO MONTOYA, ANDRES, VALDERAS GASQUEZ, DANIEL, GOMEZ URDANPILLETA, JOSE ANTONIO, VELEZ ISASMENDI, IGONE, GUTIERREZ GARCIA, INIGO, NIETO FERNANDEZ, F. JAVIER
Format:	Patent
Sprache:	eng ; fre ; spa
Schlagworte:	BASIC ELECTRONIC CIRCUITRY ELECTRICITY GENERATION OF NOISE BY SUCH CIRCUITS GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING,BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN ANON-SWITCHING MANNER MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
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Beschreibung
Zusammenfassung:	The invention relates to a capacitance-to-frequency converter circuit for capacitive transducers, formed by a ring oscillator (2000) including capacitors having a capacitance that varies with the magnitude to be measured, a binary counter (3000) which supplies a binary digital output, a parallel-series converter (4000) and a control logic block (1000) which co-ordinates the operations between the above components. Circuito conversor de capacidad-frecuencia para transductores capacitivos, formado por un oscilador en anillo (2000) que incluye condensadores de capacidad variable con la magnitud a medir, un contador binario (3000) que proporciona una salida digital binaria, un conversor de paralelo a serie (4000) y un bloque de lógica de control (1000) que coordina las operaciones entre los componentes citados. L'invention concerne un circuit de conversion capacité-fréquence pour transducteurs capacitifs, formé par un oscillateur en anneau (2000) comprenant des condensateurs de capacité variable selon la grandeur à mesurer, un compteur binaire (3000) fournissant une sortie numérique binaire, un convertisseur parallèle-série (4000) et un bloc de logique de commande (1000) qui coordonne les opérations entre les composants susmentionnés.