Patent ID: 7917315
Filing Date: 2011-03-29
Classification: G01R

Abstract:
1. A method for counting electrons from a power supply, the method comprising the following steps: a. measuring a current of a power supply forming a measured current; b. converting the measured current to a voltage; c. integrating the voltage into a monotonic uni-polar representation of an aggregate number of electrons having an amplitude representative of the aggregate number of electrons flowing through a current sense resistor using an integrator having a capacitor; d. setting a preset limit below a saturation point of the integrator; e. actuating a microprocessor in communication with a data storage when the integrator reaches the preset limit of aggregate electrons; f. reading the amplitude representative of the aggregate number of electrons from the integrator with the microprocessor forming a reading; g. transmitting the reading to an accumulator formed in the data storage forming an accumulator value; h. resetting the integrator after the transmitting the reading; i. repeating the actuation of the microprocessor before the integrator reaches the preset limit, making additional readings and repeat the transmission to the accumulator and repeat the formation of a summation of accumulator values using the additional readings; j. comparing the summation of accumulator values to a calibration value, wherein the calibration value is unique to a designated fuel gauge circuit and when the summation of accumulator values reaches the calibration value, 1 mA/hour has flowed; and k. recording an established standard engineering unit of capacity when the summation of accumulator values meets or exceeds the calibration value.