Stmicroelectronics (grenoble 2) Sas

Jean-François Garnier

Christophe Lorin

Aurélien Mazard

A state of charge of a battery is estimated in several iterations, each iteration including: acquiring a measurement of intensity of current supplied by the battery, acquiring a measurement of voltage supplied by the battery, estimating a first state of charge of the battery based on a first estimated state of charge obtained upon a previous iteration and on the current intensity measurement, estimating a value of intensity of current supplied by the battery based on the voltage measurement and on a state of charge of the battery obtained upon the previous iteration, and calculating a corrected state of charge by adding to the first estimated state of charge a corrective term obtained by the product of a first correction gain multiplied by a factor representative of a difference between the estimated and measured current intensities.

Method of determining the state of charge of a battery of an electronic appliance

A method for measuring the voltage of a battery of an electronic device by means of a measurement device integrated to the electronic device, wherein, after the connection of the battery to the electronic device, the measurement device prevents battery charge and discharge operations during the measurement.

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Vif, France

Jean-François Garnier