SoCs for polyphase smart meters
6 March 2013
Analogue, Mixed Signal, LSI
Texas Instruments recently débuted 60 new fully integrated metering systems-on-chip (SoC) at DistribuTECH 2013.
The MSP430F677x devices can achieve electricity measurement accuracy that meets or exceeds global regulatory requirements for smart polyphase e-meters, including IEC 62053-22 and ANSI C12.20 Class 0.2 standards. In addition, their large integrated memory enables more sophisticated metering features, while advanced anti-tampering protection helps electric utilities prevent power theft and meter manipulation.
To achieve the highest level of meter accuracy, an enhanced analog front end (AFE) with up to seven 24-bit sigma-delta data converters operates across a full 2000:1 input current range throughout -40°C to +85°C.
Combined with up to 512 KB Flash and 32 KB SRAM memory integrated on-chip, developers can incorporate sophisticated metering features like dynamic pricing tables for time of use, large buffer for interval data, DLMS/COSEM for meter data formatting, and communication stacks for both wired and wireless protocols such as ZigBee, wM-Bus, PRIME, G3-PLC and RF mesh networks.
Six configurable serial communications peripherals allow a combination of four UART, six SPI or two I²C ports to allow connectivity to multiple wired communication standards. The devices’ integrated display drivers support 8-mux 320-segment LCD controllers, enabling detailed displays and extended language support.
To protect electric utilities from energy theft and meter manipulation, the MSP430F677x SoCs include several advanced anti-tamper protection features. For example, dedicated pins associated with the on-chip real-time clock (RTC) detect and time-stamp meter tampering so utilities can easily track, reduce and prevent additional meter corruption.
In addition, a 128-bit hardware-accelerated Advanced Encryption Standard (AES) module speeds encryption time compared to a traditional software implementation, improving meter security and performance and reducing energy consumption.
The free MSP430 Energy Library code performs all of the polyphase meter calculations for energy and power that are required for ANSI/IEC qualified meters and provides an easy starting point for customers developing utility meter products.
Further reading:
Infineon launches Edge Ai software solution
Altron Arrow
Analogue, Mixed Signal, LSI
Infineon has introduced DEEPCRAFT, a new software solution category brand for Edge AI and machine learning, after the company recognised the huge potential of Edge AI for the market.
Read more...
16-bit voltage output denseDAC
Altron Arrow
Analogue, Mixed Signal, LSI
The AD5766 uses a versatile four-wire serial interface that operates at clock rates of up to 50 MHz for write mode, and is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
Read more...
AFE enables the software-defined factory
Avnet Silica
Analogue, Mixed Signal, LSI
With its software configurable analogue inputs, where each input can be configured for voltage, current, resistance, or temperature, NXP’s N-AFE enables a new level of flexibility.
Read more...
Precision voltage reference
Altron Arrow
Analogue, Mixed Signal, LSI
The ADR1001 is a fully integrated, ultra-low drift, buried Zener precision voltage reference solution in a single chip.
Read more...
Microphones enable low-power always-on state
Avnet Abacus
Analogue, Mixed Signal, LSI
TDK Corporation has announced its InvenSense SmartSound T5848 I2S microphones to enable intelligent keyword, voice command, and sound detection at ultra-low power.
Read more...
Low power, low-noise amplifier
Altron Arrow
Analogue, Mixed Signal, LSI
The ADL8141 is a low power consumption, low-noise amplifier that operates from 14 to 24 GHz, and draws a supply current of 25 mA from a 2 V supply.
Read more...
QLC Flash memory with the latest BiCS technology
EBV Electrolink
Analogue, Mixed Signal, LSI
KIOXIA has implemented the groundbreaking CBA (CMOS directly Bonded to Array) technology, which enables the creation of higher density devices and an industry-leading interface speed of 3,6nbsp;Gbps.
Read more...
Precision op-amp
Altron Arrow
Analogue, Mixed Signal, LSI
The ADA4099-1 and ADA4099-2 are single/dual robust, precision, rail-to-rail input/output operational amplifiers with inputs that operate from -VS to +VS and beyond, which is referred to as Over-The-Top.
Read more...
Using linear regulators as a filter
Altron Arrow
Editor's Choice Analogue, Mixed Signal, LSI
Different circuits can be used to filter a supply voltage, and this article explains the main differences between using an LC filter and a linear regulator for filtering.
Read more...
High-speed PIN diode
Altron Arrow
Analogue, Mixed Signal, LSI
Vishay’s new high-speed Silicon PIN diode is able to detect both visible and near infra-red radiation over a wide spectrum range from 350 to 1100 nm.
Read more...
printer friendly version