可应用能力的以太网供电应用

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Many existing Ethernet devices are being converted from wall-adapter power sources to utilize the newly released IEEE 802.3af Power-over-Ethernet (PoE) standard. Powersystem
efficiency formerly was not much of an issue with a wall adapter—but PoE changes that. Applications whose functional circuits begin to draw power in the 10-W range
need close control of their power usage. This article helps the designer determine how much power is available when an application operates from a PoE source.， 大小：313 KB