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AssigneeCirrus Logic International Semiconductor Ltd.
InventorsJohn P. LESSO, Toru IDO, Yanto SURYONO
Estimating the term…
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: sample an output of the electrochemical cell at a sampling frequency to generate an output signal; determine an output amplitude of output signal at one or more alias frequencies, the one or more alias frequency based on the stimulation frequency and the sampling frequency; and determine the impedance of the cell at the stimulation frequency based on the output amplitude at the one or more alias frequencies and the stimulation amplitude; and control circuitry configured to: control the sampling frequency and the stimulation frequency such that a Nyquist rate of the sampling frequency is greater than stimulation frequency.
-30. (canceled)
Circuitry for measuring a characteristic of an electrochemical cell, the electrochemical cell comprising at least one first electrode and a second electrode, the circuitry comprising:
A method of measuring a characteristic of an electrochemical cell, the electrochemical cell comprising at least one first electrode and a second electrode, the method comprising:
Dependencies are inferred from the claim text.