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Power Quality

Описание:
A quasi-resonant non-isolated Flyback supplies 15V @ 400mA from universal input voltage (90Vac to 265Vac). A LC filter has been added on input terminals to comply with CENELEC EN50065-1 regulations and make this power supply suitable for Power Line Communication. The efficiency curve value remains almost flat (72% to 85%) in the power range of 10%...100% and in the whole input voltage range.
Возможности:

Simple non-isolated PSR flyback converter with integrated 700V FET Compact solution (28.4mm x 67.4mm) supplies 6W with almost flat efficiency from 50mA to 400mA load (72%...85%) Good output voltage regulation versus load: +/-5% in the whole temperature range Very low noise solution, suitable for PLC applications, complying with CENELEC EN50065-1

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Описание:
The PMP8583 is a non-isolated quasi-resonant flyback, which converts the universal input mains to 12.2V, and is limited to 0.5A. The controller UCC28910 has an internal Mosfet that is rated at 700V.
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Описание:
This reference design provides an isolated, 1-Mbps, 3.3-V to 3.3-V RS-485 interface using the ISO35T, isolated RS-485 transceiver and the TPS76333 high-accuracy linear regulator. This board achieves signal and power isolation and at the same time decreases board space and power consumption.

Возможности:

4000V peak isolation 1/8 unit load - up to 256 nodes on a bus Signaling rates up to 1Mbps 50kV/us typical transient immunity This reference design is orderable

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Описание:

Это решение представляет собой 20-мегабитный изолированный интерфейс RS-485 (3,3 В в 5 В), использующий приемопередатчик ISO3086T и высокоточный линейный регулятор TPS76350. Эта цепь изолирует сигнал и питание, уменьшает занимаемое место на плате и потребляемую мощность.

Возможности:

  • Пиковая изоляция 4 кВ;
  • До 256 узлов на шине;
  • Частота сигнала – до 20 Мбит/с;
  • Типовая переходная защита 50 кВ.

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Описание:

TIDA-00080 – изолированный модуль измерения тока на основе шунта позволяет с высокой точностью измерять ток без использования трансформаторов тока. Изоляция достигается благодаря использованию AMC1304, включающего в себя высоковольтную изоляцию, а так же Дельта-Сигма модулятор. Это решение устраняет необходимость использовать трансформатор тока, благодаря чему уменьшаются размеры платы, вес изделия, уменьшаются перекрестные и электромагнитные помехи, и потенциально увеличивается срок службы изделия за счет снижения механических проблем благодаря замене трансформатора тока на шунт.

 

Возможности:

  • Измерение тока и напряжения с высокой точностью;
  • Точность 0,25% в диапазоне от 0,5 А до 10 А;
  • Точность 1% в диапазоне от 10 А до 200 А;
  • Устраняет необходимость использовать трансформатор тока;
  • Уменьшает перекрестные и электромагнитные помехи;
  • Увеличивает срок службы изделия и уменьшает габариты платы.

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Описание:

RS485 (изолированный, неизолированный) является популярным интерфейсом в сфере грид-инфраструктур и одной из главной опций в разрабатываемом в настоящее время оборудовании. TIDA-00308 позволяет быстро производить отладку и проводить процесс разработки с помощью устройств RS485 от TI в 3 различных случаях применения с помощью изолированного источника питания, который включён в этот проект. Кроме того, в руководстве пользователя приведены результаты испытаний данного проекта по стандартам IEC61000-4-2 (электростатический разряд) и IEC61000-4-5 (скачок напряжения).

 

Возможности:

  • В одном проекте приведены три сценария применений RS485
  • Доступны два изолированных питания, 5 В и 3,3 В
  • Статус передачи и приёма по RS485 отображается на светодиоде
  • Данный дизайн совместим со многими изолированными устройствами от TI для различных применений
  • Соответствует требованиям IEC-61000:
    • IEC-61000-4-2: электростатический разряд до 4 кВ (контакт)
    • IEC-61000-4-5: всплески напряжения до ±1 кВ
  • Нацелен на применения в качестве:
    • интерфейса с применением изолятора
    • неизолированного приёмопередатчика RS485
    • изолированного приёмопередатчика RS485

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Описание:

Данное типовое решение демонстрирует гибкую систему аналоговых входов/ выходов для устройств Smart Grid, таких как защитные реле и удаленные терминалы, которым необходима связь с другими системами Smart Grid по напряжению (от 5 В до 10 В) или току (4-20 мА). В данном решении реализованы оба типа входов/ выходов, а также цифровое управление реле. Для подключения к процессору в модуле доступны интерфейсы SPI и I2C.

 

Возможности:

  • Аналоговые входы/выходы поддерживают:
    • входной ток 0-20 мА/ 0-24 мА/ 4-20 мА,
    • входное напряжение 0-5 В/ 0-10 В;
  • Превосходная точность входного сигнала < ±0.2 %;
  • Высокая частота дискретизации (до 500kSPS);
  • Простое подключение к микроконтроллеру с SPI интерфейсом;
  • Аналоговые выходы:
    • конфигурируемые - гибкость решения,
    • выход напряжения или токовый выход;
  • Последовательное подключение ЦАП сводит к минимуму количество занимаемых выводов микроконтроллера;
  • Цифровые выходы:
    • 4 более энергоэффективных выхода по сравнению с ULN серией.

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Описание:
This reference design enables translation of high DC voltage inputs upto 300VDC into binary logic level voltages that a typical electronic circuit can handle. This solution is very flexible, not only handling input voltages from 18 to 300VDC but also allowing programmable switching thresholds to set binary levels. In addition, this solution enables < ± 3.0% (± 1V measured value step size) error in voltage detection coupled with reliable isolation > 2kV RMS.

Возможности:

High accuracy voltage measurement capability (< ±3% error) Flexible solution handling input voltages from 18V to 300VDC MCU enables programmable switching thresholds Excellent long term reliability with digital isolation included Provides option for wetting current control Output can be either I2C or digital output

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Описание:
The TIDA-00493 TI design is a fixed gain amplifier stage for measuring low amplitude voltage and current inputs accurately over a wide dynamic range using SAR ADC for power measurement applications. Low-amplitude AC voltage from voltage dividers, current transformers or split core current sensors with a 333-mV output can be accurately measured.

Возможности:

Op-Amp Based Fixed Gain Amplifier Stage for Voltage and Current Inputs With Output Compatible to ADS8688 Input Range of ±2.56, ±5.12, and ±10.24 V. Configurations Provided: Voltage Input With Resistor Divider > 1-MΩ Impedance (No External PT Required) 333-mV AC Voltage Output Type Current Sensor Interface CT Secondary Input With Burden Resistor: Single-Ended & Differential Onboard Programmable Reference Provided for Single-Ended Measurement Applications.

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Описание:
While Digital Fault Recorders (DFR) can detect transients in 17/20 μs at 60/50 Hz, Transient Recorders capture disturbances that can peak and decay well within a microsecond. This TI Design demonstrates the capturing of transient inputs at up to 1 MHz for Digital Fault Recorder and 25 MHz for Transient Recorders. Both positive and negative transients (<=2kV peak) can be captured with varying resolution based on application need (12-14 bit resolution) and within 10% accuracy using a differential amplifier driving a high speed converter.

Возможности:

Transient Recording from 10MHz - 25Mhz (> 166,000 samples/cycle) Digital Fault Recording of up to 1 MHz Differential amplifier front end to interface transient inputs to differential ADC Measurement Range: Capture input transient from 250 V to 2 kV peak, 1.2/50 us Measurement Sensitivity (10% - 100% of input voltage range): ±20 V (Resolution) for 2 kV peak Measurement Accuracy (10% - 100% of input voltage range): < 10% for Transient Capture and < 1% for Digital Fault Recorder Tested for Surge Immunity as per IEC61000-4-5 up to 4kV with 42Ω impedance

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Описание:
The TIDA-00555 TI Design demonstrates using of AMC1100, a fully differential isolation amplifier, as an analog front end to measure voltage and current. It demonstrates measurement of voltage inputs in an input-to-output isolation configuration and current inputs in a channel-to-channel isolation configuration. Also it includes power isolation, which makes it a complete subsystem for measuring isolated voltages and currents. This AFE can be used in applications that require replacing current transformers (CTs) with shunts. Shunts and potential dividers are provided onboard to directly connect current and voltage inputs.

Возможности:

Onboard shunt and potential divider provided for easier interface Input signal conditioned using Isolation Amplifier (fully differential) with fixed gain, high common mode rejection ratio and very low nonlinearity Three current input channels are galvanically isolated Three voltage input channels share a single isolated power supply Current accuracy performance < ±0.5% Voltage accuracy performance < ±0.5%

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Описание:
The TIDA-00583 is a Flyback converter which can operate in very low AC line input (Minimum 45Vac) and provide a regulated, fully-isolated 5V@1.6A output for communication model of E-meter, as well as another low-power 12V non-isolated output. Featuring TIs UCC28722 PSR controller which provides accurate voltage and constant current regulation with primary-side feedback, and bipolar power switch the design eliminates opto-coupler feedback circuits and reduces system cost.

Возможности:

Wide Input range from 45Vac to 265Vac Multi outputs with 5V/1.6A (2.2A peak) and 12V/10mA(non-isolated) Average 4-point efficiency of 73.8% or higher 72% or higher efficiency at full power (5V/2.2A) Low output ripple at full load, less than 150mV Low system cost due to use of PSR control, BJT switch and single layer PCB

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Описание:
The TIDA-00601 design implements a Class 0.5% three-phase energy measurement system with isolated shunt sensors. The isolation is achieved through the use of isolated delta-sigma modulators that have output circuitry capacitively isolated from input circuitry. An energy measurement SoC takes the different bit-streams from the isolated modulators and uses its on-board digital filters to produce ADC sample readings. The energy measurement SoC is also used for sensing voltages, calculating metrology parameter values, driving the board’s LCD, and communication to a PC GUI via the board’s isolated RS-232 circuitry. This reference design uses the ISO7420 and ISO7421. This reference design can also be used with the ISO7320C and ISO7321C. This reference design uses the AMC1304M05. This reference design can also be used with the AMC1304M25. This reference design uses the MSP430F67641. This reference design can also be used with the MSP430F67641A.

Возможности:

Class 0.5% three-phase metrology with galvanically isolated shunt current sensors Shunt isolation with working isolation voltage up to 1 kV AC and peak isolation voltage of 7kV TI Energy Library firmware calculates all energy measurement parameters including active and reactive power and energy, RMS current and voltage, power factor, and line frequency Isolated RS-232 with3 kV RMS operating isolation boundary for communication to PC GUI Built-in 160-segment display for display of metrology parameters

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Описание:
TIDA-00628 is a 15V/6.5W non-isolated, single output, AC/DC Flyback power supply that is capable of operating from wide input voltage ranging from 85Vac to 440Vac. This design demonstrates 2 key features (1) the elimination of snubber components enabled by use of a high-voltage bipolar transistor and (2) simplified transformer design with no need for an auxilliary winding. Low system parts count and built in advanced protection features result in a cost-effective solution for electricity meters and industrial designs.

Возможности:

Input voltage up to 440Vrms, 15V/6.5W output No snubber - reduces BoM count and PCB area BJT switch to reduce system cost Non Isolated output allows simplified transformer with no auxilliary winding Typical efficiency of 80% at 230V, 6.5W Compliant with Conducted Emissions: CISPR 22, Class B

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This power management solution delivering 900mA @3.6V from various battery types for smart flow metering applications (residential gas and water meters). TIDA-00676 includes an ETSI Cat. 1 receiver capable RF subsystem for wM-Bus @ 169 MHz with up to +30 dBm transmit power meets all technical requirements for 169MHz RF links in Italy and France. Power management and RF sub-systems can be equally well used in data collectors and other end nodes (E-meter or In-Home Display) with wM-Bus@ 169 MHz links.

Возможности:

360-nA Iq Step-Down Converter charges a SuperCap from multiple battery chemistries Boost device supplies the 900mA current to a +30dBm Power Amplifier(PA) ETSI Cat. 1 Receiver capable wM-Bus subsystem @ 169MHz with up to +30dBm transmit power and 55dB dynamic range Ultra-low power FRAM MCU with rotation detection hardware and LCD controller SRF7 configurations files for Receiving wM-Bus packets in all N-modes Includes firmware in source code, SRF7 Studio GUI configuration files and User's Guide

Документация:
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Описание:
Magnetic tampering can paralyze any transformer in an energy measurement system, which may potentially lead to the system being unable to be powered properly or unable to correctly register the energy consumed by a load. This design implements a Class 0.2 three-phase energy measurement system that detects magnetic tampering using hall sensors. Magnetic tamper detection is enabled when running from both main and backup power sources. Methods are used to reduce the current consumption of the hall sensors to increase battery life when running from the backup power source.

Возможности:

Bop =±6.9 mT, Sensor Brp =±3.5mT Support for Backup Power Sources Software Power Duty-Cycling Reduces Current Consumption per Sensor to < 2 µA Three-Phase Energy Measurement Exceeds Class 0.2 Accuracy Requirements from ANSI and IEC TI Energy Library Firmware Calculates All Energy Measurement Parameters Including Active and Reactive Power; Active and Reactive Energy; Root Mean Square (RMS) Current and Voltage; Power Factor; and Line Frequency

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Описание:
The TIDA-00929 TI design demonstrates bandwidth optimized analog front end (AFE) and real-time FIR implementation using low power to capture broadband frequency spectrum in any waveform. Operational amplifier in each signal path is chosen based on the gain, signal bandwidth, low noise, close to the rail swing requirements while consuming low power. The waveform is processed in real-time both in frequency and time domain using mixed signal ultra low power microprocessor with built in vector math engine.
Возможности:

Analog Front End (AFE) for effective passing both low frequency and high frequency while suppressing signal noise Capturing frequency content up to 100kHz in frequency domain by sampling the signal using 12-bit SAR ADC at 200ksps and performing real-time FIR filter in MSP430 using low energy accelerator (LEA) frequency domain by sampling the signal using 12-bit SAR ADC at 200ksps and performing real-time FIR filter in MSP430 using low energy accelerator High frequency time domain analysis: 1). Capturing arc signatures up to 3MHz using internal comparator of MSP430. 2) Noise capture up to 10MHz using external comparator. IQ requirement of 10mA is derived from single-phase AC supply of 85Vrms-270Vrms with capability of powering up to 100mA. Compatible with various sensors like shunt, CT or Rogowski coil

Документация:
  • Топология платы
Описание:
The TIDA-00976 TI Design is a high-speed current-to-voltage circuit. This design is optimized for current-sense applications that require high-speed current measurements in the positive supply rail for voltages from 5 to 30 V. This design will reduce the common-mode voltage from 30 V and produce an output voltage centered at 2.5 V for sampling with an analog-to-digital converter (ADC). The output common mode can be easily changed by using different precision references.
Возможности:

Bandwidth > 15 MHz Convert Current-to-Voltage High-Side Voltage Range from 5 to 30 V Flexible Output Common-Mode Voltage

Документация:
  • Схемотехника
  • BOM
  • Топология платы
Описание:
The TIDA-01088 reference design implements power quality parameter measurement in a polyphase energy measurement system. Total harmonic distortion (THD), fundamental readings, and standard metrology parameters such as active and reactive energy and power are calculated. Phase to phase angles are also calculated to help prevent incorrect installation of the system. This design uses isolated shunt current sensors to maintain accuracy in harmonic analysis and also immunity from magnetic tamper attacks.
Возможности:

Class 0.5% Three-phase metrology with galvanically isolated shunt current sensors Isolation performance of up to 1-kV AC (working voltage) and 7 kV (Peak) Total Harmonic Distortion (THD) calculated for Voltage and Current Voltage Sag and Swell events logged with programmable threshold levels Phase to Phase angle measurement for determining phase sequence to help prevent incorrect installation of system Complete Energy Library with Fundamental Voltage and Current, Fundamental Active and Reactive power, Active and Reactive Energy, Root Mean Square(RMS) Current and Voltage, Power Factor, and Line Frequency

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Описание:
The TIDA-01094 reference design implements a class 0.5 three-phase transformerless energy measurement system with isolated shunt sensors by using isolated delta-sigma modulators. The delta sigma modulators have their output circuitry capacitively isolated from input circuitry, thereby providing transformerless data isolation. The high-side of each modulator is powered by a cap-drop supply that is also transformerless. Since a transformer is not used in this design, this design is inherently magnetically immune. In addition, the high-side cap-drop power supply reduces the entire system cost, has inherent low conducted and radiated emissions, and reduces the current consumption drawn from the low-side power supply since the high-side is separately powered from Mains instead of being derived from the low-side power supply.
Возможности:

Class 0.5% three-phase metrology with galvanically isolated shunt current sensors Cap-drop power supplies for high side of modulators Isolation performance of up to 1-kV AC (working voltage) and a voltage of 7 kV (peak) Supports both AMC1304M05 and AMC1305M04+TLV70450 configurations TI energy library firmware calculates all energy measurement parameters including active and reactive power and energy, root mean square (RMS) current and voltage, power factor, and line frequency Isolated RS-232 With 3-kVRMS operating isolation boundary for communication to PC graphical user interface (GUI)

Документация:
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Описание:
The physical case surrounding a smart meter is the first line of defense against tampering. Smart meter designs must incorporate some way to detect when the meter case is opened in order to alert service providers to a possible tamper attack. This reference design implements a new method for the low-power detection of such tampering by using a small, inductive sensor to accurately and reliably determine if the meter case has been opened. This new solution improves system reliability by eliminating mechanical components which can wear out over time. This system is implemented for smart electricity meters but the design techniques can as well be applied to water ,gas, and heat meters.
Возможности:

Contactless detection of case tampering events Accurately detects case movement as small as 4mm Single inductive sensor detects opening of terminal block cover and main cover Consumes approximately 2 µA while sampling at 1Hz Immune to DC magnetic tampering

Документация:
  • Даташит
  • Схемотехника
  • BOM
  • Топология платы
Описание:
This reference design showcases a three-phase current sensor for current measurements by measuring the magnetic fields generated by a current carrying conductor such as a PCB trace. The sensor's are placed near a current carrying PCB trace to measure current passing through the trace. The reference design is suitable for use in industrial applications where basic power monitoring is required. Through the use of magnetic fluxgate technology, this design is able to cover three-phase current measurements upto 5A per phase while achieving high accuracy.
Возможности:

Three-phase current measurement with magnetic fluxgate sensors Calibrated current measurement accuracy ±1% Current sensing over-the-trace (PCB trace) Current measurement range 500mA - 5A Adjustable sensor range up to ±2mT (max) Supply voltage range: 3.0V to 5.5V

Документация:
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Описание:
The TIDC-BLE-METER-READING reference design focuses on an application for reading an energy monitor device over a Bluetooth® Low Energy (BLE) link using the SimpleLink™ CC2650 multi-standard wireless MCU and corresponding SensorTag module. The module is then connected to the hardware (with a minor modification) from the TI design TIDM-3OUTMSTSTRP as the metering data source. This TI Design also includes an Android application that functions as a remote reader and control terminal

Возможности:

Reading of the energy monitor’s parameters with Bluetooth Low Energy link Simple creation of Bluetooth Smart profile Interface to Energy Monitoring Device via UART Contains TI's SimpleLink Ultra Low Power Wireless Microcontroller, MSP430 microcontroller and low voltage low power 7-channel transistor array

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The TIDC-WIFI-METER-READINGTI Design adds Wi-Fi® communications to the TIDM-3OUTSMTSTRP smart power strip design. Wi-Fi connectivity is provided by the SimpleLink™ Wi-Fi CC32000 wireless MCU. A remote user can monitor the electricity consumption of the loads plugged into each of the three outlets and control a relay to switch power on/off. Smart power strips require connectivity to maximize their role in improving energy efficiency for applications such as data centers. The TIDM-BLE-MTR-READING TI Design offers another connectivity option.

Возможности:

Wi-Fi connectivity to monitor and control three independent electrical loads Smartphone or table display of active and reactive power, energy, power factor and other energy measurement parameters Wirelessly controlled relay to switch power on/off to individual loads SimpleLink™ Wi-Fi CC32000 wireless MCU provides integrated Wi-Fi in a single device High-efficiency flyback power supply architecture minimizes BOM count and reduces cost

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This processor-based reference design facilitates a quicker time to market and helps customers design cost-effective, human machine interface (HMI) solutions for protection relay. This reference design showcases a two-dimensional (2-D) Qt graphical user interface (GUI), which is typical for protection relay HMI, along with TI processor capabilities for software rendered graphics. The AM335x processors provide scalability by offering a range of processing speeds and using the same software development environment to satisfy low- to high-end applications as well as ample connectivity with the key peripherals required for protection relay HMI, such as universal asynchronous receiver/transmitter (UART) and CAN.
Возможности:

Example screens of protection relay HMI using software accelerated graphics and Qt Resistive touchscreen enabled Support for 480 x 272 resolution on included 4.3-inch LCD; scalable up to 2048 x 2048 on other displays Built on TI's processor SDK-Linux for scalability to other Sitara processors

Документация:
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Описание:

Интерфейс QSPI в процессорах AM437x семейства Sitara позволяет разработчикам систем подключать к ним флэш-память NOR. Интерфейс имеет достаточную скорость для поддержки выполнения программы на носителе (execute-In-Place, XIP). Данный проект позволяет добиться гибкого подхода к разделению кода и снижению общей стоимости системы благодаря использованию недорогой NOR флэш- или DDR-памяти.

Данный базовый проект имеет характер программного решения.

Возможности:

  • 512-мегабитная флэш-память NOR, подключенная через интерфейс Quad-SPI к процессору AM437x семейства Sitara
  • 4-выводной интерфейс SPI с внешним сигналом выбора микросхемы
  • SPI MODE 3
  • Полноценный базовый проект подсистемы со схемой электрической принципиальной, перечнем элементов, файлами проекта, а также руководство пользователя по аппаратной части, реализованной на полностью смонтированной печатной плате, предназначенной для тестирования и проверок

Документация:
  • Схемотехника
  • BOM
Описание:
The Sitara AM437x simplified power sequence feature provides flexibility to power designers. This reference design implementation is a BOM-optimized discrete power solution for the AM437x processor with a minimal number of discrete ICs and basic feature set. The solution represents a baseline of a discrete power solution that can be extended for additional features and capabilities of the AM437x processor.

Возможности:

Simplified, BOM-optimized discrete power solution for the Sitara AM437x processor. AM437x includes an integrated LDO that simplifies processor power sequencing requirements. Systems without controlled power down can greatly benefit from this feature since the integrated LDO always ensures power up/down sequencing is met for VDDS and VDDSHVx supplies The TLV62565 step down converter provides the 3.3 volt supply and the TLV62080 provides the 1.1 volt supply. Two TLV702xx low drop out regulators (LDOs) provide the 1.5-V and 1.8-V supplies. TLV803M voltage supervisor keeps the processor in reset until all rails are operational and to reset the processor when input power is lost. This design is tested and includes schematics, BOM, design guide, and test data.

Документация:
  • Схемотехника
  • BOM
Описание:
The TIDEP0054 TI Design implements a solution for high-reliability, low-latency network communications for substation automation equipment in Smart Grid transmission and distribution networks. It supports the Parallel Redundancy Protocol (PRP) specification in the IEC 62439 standard. This solution is a lower-cost alternative to FPGA approaches and provides the flexibility and performance to add features such as IEC 61850 support without additional components.
Возможности:

Compliant to IEC 62439-3 Clause 4 specification for PRP Ethernet communications Traffic filtering based on VLAN ID’s, multicast/broadcast support, and built-in storm prevention/supervision mechanism Zero recovery time in case of network failure Dual-ported, full-duplex 100 Mbps Ethernet Fully programmable solution provides platform for integration of additional applications

Документация:
  • Схемотехника
  • BOM
Описание:
This design is a digitally controlled, two phase interleaved, 700W power factor correction converter with added power metering functionality. A C2000™ Piccolo™ microcontroller is the controller for the two 180° phase shifted boost power stages that comprise the power factor correction converter, and, additionally, it monitors the line and neutral voltage waveforms to implement power metering functions. This design is able to achieve 97% efficiency and 1.5% THD at full load with power factor greater than 0.98. By minimizing power loss in the power stage, reducing reliability impacts of harmonic distortion, and providing near unity power factor, this design is a great choice for off-line applications and AC/DC power supplies.

Возможности:

Full digital control of dual interleaved PFC power converter topology Universal input of 95 VAC to 265 VAC 400 VDC bus output operating up to 700 W Power Factor of 0.99 at 200 KHz switching frequency and 1.5% THD at full load Supports power monitoring of rectified input voltage, RMS input voltage, RMS input power, and input line frequency Fully-functional evaluation board includes software, hardware design files, quick start graphical interface and step-by-step documentation. NOTE: Software for this board can be found inside the controlSUITE™ software package. Download controlSUITE at http://www.ti.com/tool/controlsuite. Once installed, navigate to "High Voltage Interleaved PFC Kit" under the Development Tools -> Digital Power section.

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Документация:
  • Даташит
  • Схемотехника
  • BOM
  • Топология платы
Описание:
This design implements an ANSI/IEC Class 0.2 three-phase energy meter with enhanced ESD protection. The design also features tamper detection to limit the feasibility of energy theft and communications through ZigBee™ connectivity. The e-meter SoC is used to perform all metrology functions and sends active power results to the CC2530EM add-on board. Developers can use the companion In Home Display TI Design (TIDM-LOWEND-IHD) to display results remotely. This reference design uses the MSP430F67791A. This reference design can also be used with the MSP430F67791,MSP430F6779 and MSP430F6779A.

Возможности:

• Three-Phase meter with tamper detection which exceeds Class 0.2 accuracy requirements from ANSI and IEC • Passed IEC 61000-4-2 level-4 air discharge tests(see design guide for details) • TI Energy Library firmware calculates all energy measurement parameters including active and reactive power and energy, RMS current and voltage, power factor, and line frequency. • Support for ZigBee ® Communication to In Home Display or connections to Wi-Fi®, Wireless M-Bus, and IEEE-802.15.4g add-on communications modules. • Automated or manual switching between main and auxiliary power sources for metrology engine.

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Документация:
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  • Схемотехника
  • BOM
  • Топология платы
Описание:
Smart electric meters are required to maintain normal operation for a short period of time after the electric grid fails. This reference design details methods by which designers can meet this requirement when using an advanced, smart meter MCU. Designers can use this design to evaluate options for battery management and auxiliary power supplies quickly and easily.

Возможности:

Two types of power sources for the auxiliary supply of the host MCU: independent regulator with super-cap back-up and (2) AAA batteries Separate power supply for Real-time Clock Automatic time capture of external events for tamper detection Automated or manual switching of power supply Automated power supply monitoring

Документация:
  • Даташит
  • Схемотехника
  • BOM
  • Тестирование
Описание:
This TI Design demonstrates adding Near Field Communications (NFC) capability to flow meters. The NFC Interface Transponder provides data exchange capability between flow meters and NFC readers and is compliant to ISO14443B. The transponder used in this design consumes no power while waiting to be energized by a RF field generated by the NFC reader. In addition, this design can be powered by harvesting the energy from the RF field generated by the NFC readers. These two approaches minimize the power consumption impact to the flow meters.

Возможности:

Provide NFC function for flow meter designs Zero standby power for the NFC function NFC reader provides power to the NFC chip for communication Minimize impact on power consumption to the host

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Документация:
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Описание:
This design, featuring the MSP430F47197 device, implements a highly integrated single-chip electricity metering solution, with support for Rogowski coil current sensors. Hardware and software design files are provided to enable calculation of various parameters for multi phase energy measurement, such as RMS current & voltage, active and reactive power and energies, power factor and frequency. The added hardware and software support for Rogowski coils make it easy to interface with Rogowski coils with minimal hardware changes when migrating from traditional current transformers. Rogowski coils traditionally provide a ease of use vs. traditional transformers, utilizing an air coil instead of iron core. The Rogowski coil current sense library implements an efficient software integration of the Rogowski output, enabling this to be a single chip solution for 3-phase e-metering. Software package also includes an example application for quick and easy evaluation of the hardware and software.

Возможности:

3 phase .2% energy metering solution Low cost isolated current sensing using Rogowski Coils Software integrated solution – minimal hardware changes to migrate from existing CT based solutions Current sensing immune to EMI Designed with high-pass filter utilized after current sample for DC-removal AC signals from mains can be directly interfaced without the need for level shifters"

Документация:
  • Даташит
  • Схемотехника
  • BOM
Описание:
The TIDM-THDREADING reference design implements power quality analysis in a three-phase energy measurement system. Power quality monitoring and analysis has an increasingly large role in improving the reliability of the electricity grid. The design measures Total Harmonic Distortion(THD), monitors voltage sags and swells, and measures phase-to-phase angles to help determine phase sequence and prevent accidental phase swapping. Four-quadrant energy measurement is supported for net metering systems with bi-directional energy flow.

Возможности:

THD calculated for voltage and current Voltage sag and swell events logged with programmable threshold levels Phase-to-phase angle measurement Four quadrant energy measurement with Class 0.2 accuracy Complete Energy Library with fundamental voltage and current, fundamental active and reactive power, active and reactive energy, Root Mean Square(RMS) current and voltage, power factor, and line frequency

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  • Топология платы
Описание:

Этот проверенный дизайн реализует различные управляемые операционными усилителями емкостные нагрузки от 100 пФ до 1 мкФ с использованием изолирующего резистора. Дизайн использует OPA192 благодаря его способности управлять большими емкостными нагрузками с небольшими изоляционными резисторами. 

 

Возможности:

  • Напряжение питания: 30 V (+/-15 V)
  • Емкостные нагрузки: 100 pF, 1000 pF, 0.01 mF, 0.1 mF, 1 mF
  • Включает OPA192, высоковольтный,  Rail-to-Rail операционный усилитель

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Документация:
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  • Топология платы
Описание:

Это решение замкнутого токового трансдюсера с однополярным питанием разработано для измерения постоянного, переменного и импульсного токов. Решение обеспечивает гальванически изолированное измерение токов до 55 А до достижения насыщения и включает в себя встроенный индукционный датчик.

Возможности:

  • Диапазон измеряемых токов до 55 А;
  • Встроенный индуктивный сенсор;
  • Чувствительность 41,1 мВ/А;
  • Гальванически изолированный токовый трансдюсер.

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Документация:
  • Даташит
  • Схемотехника
  • BOM