低功耗智能電源應(yīng)用的微控制器

　　微控制器正在以更低的功耗運(yùn)行，以開辟新的應(yīng)用，如智能照明和無(wú)線計(jì)量。新的設(shè)備正在降低功耗，給工程師們提供更多的選擇，從高級(jí)語(yǔ)言開發(fā)工具到不同外設(shè)的范圍。

　　智能電源的驅(qū)動(dòng)來(lái)自多個(gè)方向。能夠監(jiān)視和控制接近負(fù)載點(diǎn)的電力消耗，使電力更均勻地分布在電網(wǎng)上，減少了操作員的浪費(fèi)能力。對(duì)于用戶來(lái)說(shuō)，它可以提供更靈活的關(guān)稅，更低的電力成本，并有助于降低整體電力使用，降低成本甚至更進(jìn)一步。然而，無(wú)論是在資金成本還是在維護(hù)方面，這些設(shè)備都必須具有成本效益。數(shù)以百萬(wàn)計(jì)的智能電表更換電池是電網(wǎng)運(yùn)營(yíng)商的主要運(yùn)營(yíng)成本，也是實(shí)施的一個(gè)潛在缺陷。降低智能設(shè)備的功耗不僅可以降低功耗，還能使電池運(yùn)行多年。

　　Reducing power further through effective device management， new low power design architectures， and power-sensitive manufacturing processes can also bring the total power budget down to the point where no batteries are needed. At this point， energy can be harvested from the environment – often from vibrational or thermal energy in an industrial environment – and stored in a local battery. This provides power for a microcontroller and often a sensor and a network link for monitoring. The choice of architecture for the node and for the microcontroller is vital for the performance and the battery life， and there are several different options.