With the ever increasing demand for emerging portable devices such as tablets and smartphones, there are many new challenges in improving battery-operated
system performance. The battery-management system
must be intelligent to support different types of adapters and battery chemistries and must provide fast charging with high efficiency. At the same time, it is important to provide a good user experience with instant turn-on of the system, longer battery run time, and fast charging. This article discusses how to achieve fast battery charging
and improve battery charging performance with dynamic power management (DPM). DPM helps to avoid system crashes and maximises the power available from the adapter. It can be based on input current or input voltage, or combined with a batterysupplement mode. This article also discusses critical design considerations for extending battery run time.
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Originally published by Texas Instruments at www.ti.com as "Dynamic power management for faster, more efficient battery charging".