Patent ID: 8346496
Filing Date: 2013-01-01
Classification: H01M,Y02E

Abstract:
1. An assaying system for assaying a set of electrically or electrochemically active materials, the system comprising: a microcontroller; a main digital-to-analog converter (DAC) which is controlled via the microcontroller; an electrical current sensing module operable for measuring an electrical current in the materials, and for transmitting the measured electrical current to the microcontroller; a voltage sensing module operable for measuring a voltage across the materials, and for transmitting the measured voltage to the microcontroller; a reference voltage DAC which applies a calibrated reference voltage across the materials; a power switch controlled by the microcontroller, with the power switch being electrically connected to an output side of the main DAC and operable for electrically disconnecting the main DAC from the materials to produce an open-circuit voltage across the materials; and an array of shunt resistors; wherein the microcontroller assays the materials using at least one of the measured voltage, the measured electrical current, the reference voltage, and the open-circuit voltage, and is configured to select a shunt resistor in the array to thereby select a calibrated gain.