Circuitry for measurement of electrochemical cells
AssigneeCirrus Logic International Semiconductor Ltd.
InventorJohn P. LESSO
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Abstract
Circuitry for determining an impedance of an electrochemical cell comprising at least one first electrode and a second electrode, the circuitry comprising: drive circuitry configured to apply a stimulus to the electrochemical cell, the stimulus having a stimulation frequency and a stimulation amplitude; and measurement circuitry configured to: measure an output of the electrochemical cell to generate an output signal; separate the output signal into a linear component and a non-linear component; and determine the impedance of the cell based on the linear component of the response.
Claims30
Circuitry for determining an impedance of an electrochemical cell comprising at least one first electrode and a second electrode, the circuitry comprising:
- drive circuitry configured to apply a stimulus to the at least one first electrode of electrochemical cell, the stimulus having a stimulation frequency and a stimulation amplitude;
- and
- measurement circuitry configured to:
- measure an output of the electrochemical cell to generate an output signal;
- separate the output signal into a linear component and a non-linear component;
- and
- determine the impedance of the cell based on the linear component of the response.
(canceled)
Dependencies are inferred from the claim text.