Selbstoszillierender Mehrrampen-Umsetzer und Verfahren zum Umsetzen einer Kapazität in ein digitales Signal

According to various embodiments, a multi-slope converter can have the following: an integrator circuit having a charge store; a clocked comparator; a sensor circuit having a capacitor arrangement and a charging circuit for pre-charging the capacitor arrangement, a discharging circuit; a switch arra...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Prefasi, Enrique, Gaggl, Richard, Rogi, Christopher
Format: Patent
Sprache:ger
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Beschreibung
Zusammenfassung:According to various embodiments, a multi-slope converter can have the following: an integrator circuit having a charge store; a clocked comparator; a sensor circuit having a capacitor arrangement and a charging circuit for pre-charging the capacitor arrangement, a discharging circuit; a switch arrangement and a controller circuit for actuating the switch arrangement based on a clock signal; wherein the controller circuit is set up to actuate the switch arrangement such that, alternately: in an integration cycle electrical charge is transferred from the capacitor arrangement of the sensor circuit to the charge store of the integrator circuit, and in a deintegration cycle the charge store of the integrator circuit is discharged by means of the discharging circuit, wherein after the integration cycle a residual charge remains stored in the charge store of the integrator circuit and is taken into consideration during a subsequent integration cycle.