Time delay charge integration circuit

Time delay charge integration circuit

A charge integration circuit incorporates first and second capacitors, and first and second reference voltage supplies. A first switch controls integration of charge in the first capacitor and selectively resets the first capacitor to the first reference voltage. A second switch selectively resets t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LEFEVRE, ANDREW PAUL
Format: Patent
Sprache:eng
Schlagworte:
ANALOGUE COMPUTERS
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:A charge integration circuit incorporates first and second capacitors, and first and second reference voltage supplies. A first switch controls integration of charge in the first capacitor and selectively resets the first capacitor to the first reference voltage. A second switch selectively resets the second capacitor to the first reference voltage. A current mirror coupled to the capacitors effects discharge of the second capacitor by a quantity of charge equivalent to the charge integrated on the first capacitor so as to effectively transfer charge therebetween at the end of an integration period.