| 摘要 |
A battery management system is provided having a battery management unit (BMU) and an integrated switch and sense device (SSD) for accurately measuring the charge state of a rechargeable battery and providing charge protection for the rechargeable battery. Th system includes a load, an integrated power and sense device including a power device and a sense device, the integrated power and sense device connected between the rechargeable battery and the load wherein the sense device provides a mirror current proportional to the current in the power device, a first circuit that measures the rechargeable battery current using the mirror current, and a second circuit that measures the charge in the rechargeable battery using the mirror current.
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