Device and method for converting a charge-flow into a frequency signal
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United States of America Patent
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Oct 8, 2002
Grant Date -
N/A
app pub date -
Jul 11, 2000
filing date -
Sep 10, 1998
priority date (Note) -
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Abstract
A device and a method for converting flow of charge into a frequency signal is proposed. The device comprises: two parallel circuit branches (Z; Z') which are arranged to receive flow of charge alternately and each of which has a series arrangement of a switching element (40; 40'), an integrator (10; 10') and a comparator (30; 30'), wherein the switching elements (40; 40') serve to supply the flow of charge to one of the two circuit branches (Z; Z') and in the receiving circuit branch (Z; Z') the integrator (10; 10') serves to integrate the flow of charge and is configured to be resettable and the comparator (30; 30') is configured to emit a signal when the integrated flow of charge corresponds to a specific threshold value signal.
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