Southwest Electronic Energy Corporation

Claude Leonard Benckenstein

David Allen White

Clint Alfred Davis

Dean Perkins

A fuel gauge for power supplies having a voltage pre-regulator; a main voltage regulator; a current sense resistor; an integrator with an op amp and capacitor, wherein the integrator receives power from the main voltage regulator, and receives a voltage proportional to current from the current sense resistor; a microprocessor with data storage and a hysteresis circuit, wherein the microprocessor operates in a low power state until activated by the resistor and the microprocessor converts the voltage proportional to current to a monotonic uni-polar representation of an aggregate number of electrons; a resistor disposed between the integrator and the microprocessor for activating the microprocessor from the low power state prior to saturation of the integrator with the voltage proportional to current; and a reset circuit disposed between the microprocessor and the integrator for resetting the monotonic uni-polar representation of an aggregate number of electrons to zero.

Fuel gauge

A method for counting electrons from a power supply, comprising the following steps: measuring a current of a power supply forming a measured current; converting the measured current to a voltage; then into a monotonic uni-polar representation of an aggregate number of electrons having an amplitude; actuating a microprocessor in communication with a data storage just before an integrator in communication with the power supply reaches a preset limit of aggregate electrons; reading the amplitude forming a reading; transmitting the reading to an accumulator forming an accumulator value; resetting the integrator after the transmitting the reading, repeating the actuation, reading and transmission; comparing the summation of accumulator values to a calibration value; and recording the capacity when the summation of accumulator values meets or exceeds the calibration value.

Growing community of inventors

Sugarland, TX, United States of America

Claude Leonard Benckenstein