现代计算系统的一个基本要求是当初级电源存在波动的情况下能可靠地工作。当初级电源为电池时,上述要求特别具有现实意义,因为随着电池的放电,电池电压不可避免地下降。尽管某些型号电池的性能较好,但也未能消除这个问题。这种可靠性可通过局部调整得到。可是,在调整过程中,从初级电 A basic requirement of modern computing systems is that they work reliably when there are fluctuations in the primary power supply. This requirement is of particular relevance when the primary power supply is a battery because the battery voltage inevitably drops as the battery discharges. Although some models of the battery performance is better, but also failed to eliminate this problem. This reliability can be adjusted locally. However, in the adjustment process, from the primary electricity