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Flash Mcu

Smart meters / meter chip into innovative hot-ADI, smart meters, meter chip - the industry

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First half of last year, smart meters gradually become microcontroller (MCU) business application focus, several competing companies release new products MCU. Not long ago, Freescale, ADI and NXP products company staged a new show. Three-Phase Energy Measurement IC

ADI accuracy of 0.1% Some analysts have pointed out, the next 5 years, with the growth in the deployment of smart grid, smart meters installed in the global number will reach 200 million. In China, with the smart grid of 596 billion U.S. dollars related to the economic stimulus package is being implemented, which is expected in the next 3 to 5 years to deploy 170 000 000 smart meters. In the United States government funding to upgrade its network in one part is used to make 13% of U.S. households (one thousand eight million households) within the next 3 years can be fitted with smart meters. In Europe, Italy and Sweden have already completed advanced metering infrastructure (AMI) deployment, will replace all the normal meter smart meters. France, Spain, Germany and the United Kingdom is expected to be completed in the next 10 years, AMI deployment.

09 12 months, the United States four ADI announced the latest high-precision energy measurement IC? ADE7878, ADE7868, ADE7858 and ADE7854, can be used to enhance the commercial, industrial and residential smart meter accuracy and performance.

ADI Corporation Energy RonnKliger director, said: "In the total active and reactive power of the measurement, the four products, precision and dynamic range than the meter industry Class0.2 specifications. The four new devices are also 0.1% accuracy simultaneous measurement of reactive and active power. In addition, a product which also has the fundamental power measurement, power quality monitoring which is critical. "

ADE7878, ADE7858 and ADE7854 Energy Metering IC precision designed for the multi-phase configurations, including three-and four-line, Y-type and delta type. In 1000:1 dynamic range, they can active and reactive energy measurement accuracy of 0.1% provided; in 3000:1 dynamic range for active and reactive energy measurement of 0.2% accuracy. These new products also in the dynamic range of 1000:1 for the RMS current and RMS voltage measurement to provide 0.1% accuracy.

Addition to measuring power of each phase and the zero line outside, ADE7868 and ADE7878 can also monitor power quality parameters, such as SAG, peak, period, phase angle measurement and sequencing. Another industry first is to maintain the normal operation of the same, ADE7868 and ADE7878 with various anti-theft features to ensure the normal work, which can reduce on-site assistance and meter repair time. MZ series

Freescale MCU network for the country to build

Late last year, the Chinese State Home Appliances Web companies had a new smart grid planning, a series of single-phase meter design requirements, such as: increasing the basic measurement functions, cost control function complex, a multi-meter communication patterns, and shell tools are, Electronic Relatively fixed line route location, etc..

Full of China's national network of new standards for single-phase energy meter designs based on Freescale introduced the MZ series of 8-bit microcontroller (MCU) chip, integrated 60kB, 96kB or 128kB flash memory, providing 64-lead pin LQFP package. MZ series of microcontrollers also offer 32-bit processor chips, integrated 256kB flash memory. MZ series of all the chips can be realized fully compatible 64-pin chip, users do not modify the PCB (printed circuit board) layout can be upgraded. Provide one-stop reference design (Figure 1) contains the necessary hardware and software, fully in line with new standards of China State Grid meters, smart meters can simplify development and speed to market.

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