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By measuring the charge entering and leaving the battery, coulomb counting is a method of calculating the quantity of charge used.
A digital electroscope and a coulomb metre exhibit comparable behaviours. Its display indicates the quantity of coulombs that a current passing through a resistance, a capacitor, or a static electricity source like a charged plastic rod deposited into it.
The Global coulomb counter market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2022 to 2030.
In applications where cost is an issue, the DS2740 from Maxim Integrated provides high-precision current-flow measurement data to enable battery capacity monitoring.
The dynamic range of the current measurement is 15 bits for the DS2740U and 13 bits for the DS2740BU, respectively. The net flow is accumulated in a separate 16-bit register.
The DS2740 provides read/write access to status and current measurement registers to the host system via its 1-Wire interface. Each device has its own 64-bit factory-programmed net address that enables the host system to address each one separately, facilitating multi-battery slot operation. Both regular and overdrive timing can be used to operate the interface.
There are two power settings on the DS2740: Active and Sleep. When in Active mode, the DS2740 functions as a high-precision coulomb counter, updating the measurement registers with the results of continually operating current and accumulated current measurement blocks.
All registers permit read and write access. PIO pin is turned on. The DS2740 runs in a low-power mode while in Sleep mode and doesn’t perform any current measurements. If VDD is more than 2V, serial access to the current, accumulated current, and status/control registers is permitted.
