Battery self-discharge performance rapid measuring device

• Main Authors: CHENG CONGBIN, LI GECHEN
• Format: Patent
• Language: Chinese; English
• Published: 19.09.2012
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The utility model provides a battery self-discharge performance rapid measuring device for the society. The battery self-discharge performance rapid measuring device is composed of a one-chip microcomputer CPU, a digital-to-analog converter D/A, an analog-to-digital converter A/D, an operational amplifier A, a power supply P, resistors R1 to R4, and a measured battery B. The measured battery B is taken as an object identified by a system. The charge-discharge current Iw of the measured battery is taken as an input signal, and the voltage U1 of the measured battery is taken as an output signal. Through the simulation calculation of an equivalent circuit D of the battery, an simulation output signal U2 is acquired, a reference value of an equivalent circuit component is adjusted according to an error between the U1 and the U2, and when the U1 tends to be equal to the U2, a reference R0 in a simulation system is a self-discharge resistance of the measured battery B. The conventional battery self-discharge perfor