国家电网智能电能表的低功耗设计.pdf

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国家电网智能电能表的低功耗设计.pdf

51  11 Vol.51 No.11   2014  6 10 Electrical Measurement & Instrumentation Jun.10 ,2014   1 2 1 , , (1.,100085; 2.,100085) :2009 ,2013 。 ,。 ,,、、IC , ,。 0.4 ~0.6W ,,,。 :;;;IC :TM933       :B :1001 -1390(2014)11 -0028 -04 The Low-Power Consumption Design for Smart Electricity Meter in Chinese National Power Grid Networks 1 2 1 CHEN Zhong-ping ,PEI Shi-yan ,GUO Li-guang (1.Suzhou Galaxy Camphol Technology CO.LTD, Beijing 100085, China. 2.Beijing Seaward Electronic Corp.Limited, Beijing 100085, China) Abstract : State Grid published the first specification of Smart Electricity Meter (SE-meter) in 2009, with some addi - tional functions and features added in 2013.As SE-meter gains more and more popularity over the years , it has be- come increasingly clear that the low power consumptionandhighreliabilityare becoming more andmore importantin the operations of SE-meters.The self-power consumptions of SE-meters and the corresponding power supply circuits have been analyzed in detail in this paper.The designs of wide voltage , high reliability and low-power consumption linear power management IC have been adopted to improve the reliability and cost performance , so as to satisfy the statestandardofsmartmeter.Thepowerconsumptionsduringstand -bymodearereducedto 0.4 ~0.6WperSE-meter and the cost of ICinpowersupplycomponentofsmartmeterarereduced ,whichwillmakegreatsenseforenergysav- ing and emission reduction as well as improve the economic benefit for power supply enterprise . Key words:high ratio between performance and cost , energy saving , low powe

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