Ion detector current converter
AssigneeThermo Fisher Scientific (Bremen) GmbH
InventorHeinz Lerche
Life of this patent
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Abstract
A conversion circuit is arranged for converting an ion detection current (iD) produced by an ion detector into an ion detection signal (P). The conversion circuit comprises: an input stage for converting the ion detection current (iD) into an ion detection voltage (VD), an output stage for converting the ion detection voltage into the detection signal (P), the output stage being arranged for drawing a first current dependent on the ion detection voltage, and a supplementary stage for providing a second current (iS) dependent on the ion detection voltage to the output stage. The second current may be substantially equal to the first current.
Claims15
A conversion circuit for converting an ion detection current produced by an ion detector into an ion detection signal, the conversion circuit comprising:
- an input stage for converting the ion detection current into an ion detection voltage, and
- an output stage for converting the ion detection voltage into the detection signal, the output stage being arranged for drawing a first current dependent on the ion detection voltage,
- wherein the conversion circuit further comprises:
- a supplementary stage for providing a second current dependent on the ion detection voltage to the output stage,
- wherein the second current is substantially equal to the first current.
Dependencies are inferred from the claim text.