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容量有限的电池是便携设备的惟一能量来源,而电池容量的提高速度明显赶不上中央处理器性能的提高速度,因此,如何利用有限的电能为便携设备提供最高性能,是便携设备中电源管理的主要目标。
The limited capacity of batteries is the only source of energy for portable devices, and the battery capacity can not catch up with the rapid increase in CPU performance. Therefore, how to use the limited power to provide the highest performance for portable devices is the main power management in portable devices aims.