IoT Archives - Page 180 of 456 - SmartCitiesElectronics.com

LEM claims HMSR DA current sensor is a world first

Fri, May 06, 2022

At next week’s PCIM Europe, LEM will introduce what is believed to be the world’s first integrated current sensor with sigma delta bitstream output.

The HMSR DA is the latest member of the HMSR family of robust sensors for measuring DC and AC currents in highly demanding switching power applications in commercial and industrial applications.

The HMSR DA is designed for applications that are prone to noise, distortion and interference and where clean signals are required to avoid “significant problems in case of vibrations, electric noise and electromagnetic noise”.

The sensors are characterised by superior signal share and reduced noise, said LEM, as well as lower cost and a smaller mechanical footprint. HMSR DA will replace more complex and costly alternative systems that would traditionally include a shunt resistor, a digital insulator and a power supply circuit. The integrated sensor is designed for applications where space is at a premium and minimal cost is essential, advised LEM.

Typical applications for the digital output unit include standalone servo drives, robotics, automated guided vehicles (AGVs), CNC machine tools and other applications that demand high resolution output. The HMSR DA sensor offers resolution of 11 to 13 bits and features a 10MHz clock. LEM has announced that it is already working on the next generation of digital integrated circuit sensors which will offer a resolution of 14 to 16 bits and a clock operating above 20MHz.

Analogue versions of LEM’s HMSR range of high insulated, integrated current sensors offer a small and compact current sensor, strong immunity to stray fields, reinforced isolation and a 300kHz bandwidth. The HMSR DA digital integrated circuit sensor will enable engineers to look at new ways of formulating their system design, said LEM. The Sigma Delta bitstream output is easy to use and allows customers to apply filters to adapt the sensor to their specific needs.

http://www.lem.com

> Read More

Multi-protocol microcontroller supports Ethernet and Industry 4.0

Wed, May 04, 2022

As industrial environments move towards industry 4.0, it can be difficult to enable seamless industrial connectivity across both time-sensitive and real time communications. To address this, a crossover microcontroller with integrated Gbit time sensitive networking (TSN) switch has been released by NXP.

The i.MX RT1180 crossover microcontroller enables both time-sensitive and industrial real time communications and supports multiple communications protocols. According to NXP, it bridges the gap between existing industrial systems and industry 4.0 systems. It is claimed to be the first crossover microcontroller to include an EdgeLock secure enclave, a pre-configured, self-managed and autonomous on-die security sub-system for robust, system-wide security intelligence for industrial IoT applications.

Package options start from 10 x 10mm BGA, making the i.MX RT1180 one of the smallest real time industrial networking-capable devices, said NXP. It can integrate TSN and industrial networking capabilities into a variety of industrial use cases, including I/O management, motor control, compact motion control or gateway applications.

It can also serve as a network companion chip, providing all required industrial network connectivity to a host processor via scalable connectivity stepping up to seamless Gb direct communication with the host without on-board PHY.

The i.MX RT1180 is also suitable for automotive connectivity applications, which increasingly rely on Ethernet TSN support for both high bandwidth and real time control data. This allows the i.MX RT1180 to act as an intelligent switch between different automotive engine control units (ECUs).

It features dual-core architecture, including an 800MHz Arm Cortex-M7 and Cortex-M33 and is designed for power efficiency with target use cases starting from 250mW and has an integrated PMIC (power management IC) to optimise energy efficiency, as well as reduce board complexity and cost. It has up 5Gbit ports to support the latest TSN standards, as well as multiple industrial real time network protocols, including EtherCAT, Profinet, Ethernet/IP, CC-Link IE or HSR. The i.MX RT1180 is also designed to help OEMs ease device compliance for ISA/IEC 62443-4-1, -4-2.

The microcontroller operates in the extended industrial qualification temperature range (-40 to +125 degrees C).

http://www.nxp.com

> Read More

PIC and AVR microcontrollers extend 8-bit families

Fri, Apr 29, 2022

Recognising the increasing market for 8bit microcontrollers, Microchip has added five families to its 8bit PCI and AVR families. In total there are over 60 new devices.

PIC and AVR microcontrollers combine processing power with the ability to easily communicate with other chips and a range of analogue peripherals for configurability without changes to the PCB, said Microchip. They combine ASIC-like capabilities with a simple development experience and can be configured as smart peripheral chips, continued the company.

For example, the MVIO peripheral, including the AVR DD family can be used in systems which use different supply voltages, for example connecting a 5V microcontroller to a 1.8V sensor. The MVIO peripheral on Microchip’s latest 8bit microcontrollers, including the AVR DD family, allows a single port on the microcontroller to operate in a different voltage domain, which eliminates the need for additional external components and negates the need for level-shifting hardware, said Microchip.

For systems which do require a level of speed and response time that is difficult to achieve with software-based processing, Core Independent Peripherals (CIPs) are available across the PIC and AVR product ranges. CPIs can be programmed with MPLAB Code Configurator (MCC) to form a hardware processing chain and create custom peripherals that eliminate software processing cycle times, explained Microchip. For example, a WS2812 LED array, which requires timing to be driven correctly, can be controlled by configuring a super peripheral (consisting of a pulse-width modulator (PWM), a serial peripheral interface (SPI) and the configurable logic cell.

Microchip’s 8bit microcontroller portfolio is pin-to-pin compatible, which allows an alternative PIC or AVR device to be used when more performance is needed or when a customer wants to maximise product availability while minimising redesign requirements.

Microchip offers an ecosystem of hardware and software tools, including its MPLAB X and MPLAB Xpress integrated development environments (IDEs). The portfolio also includes the MPLAB Code Configurator (MCC), which offers an intuitive graphical interface to generate production-ready set up and application code for 8bit microcontroller-based projects.

The latest AVR and PIC 8bit microcontrollers are currently sampling.

http://www.microchip.com

> Read More

Spectrum offers driver support for the Nvidia Clara AGX

Fri, Apr 29, 2022

Driver support for the Nvidia Clara AGX universal computing architecture means that developers can select one of 64 digitisers, arbitrary waveform generators and digital I/O cards from Spectrum Instrumentation for use in artificial intelligence (AI) medical instruments.

For example, the digitiser cards can be used to acquire signals in the DC to GHz frequency ranges by sampling them at rates from 5Msamples per second up to a maximum of 5Gsamples per second.

The arbitrary waveform generator, which outputs samples at 40Msamples per second up to 1.25Gsamples per second, can be used to produce signals with almost any wave shape and frequency content, from DC to 400MHz, said Spectrum.

Individual analogue cards offer one, two-, four- or eight-channel capability. Digital I/O cards and digital data acquisition cards allow the acquisition of digital data at rates up to 720Msamples per second and can generate digital patterns at up to 125Msamples per second. There are different interface options for TTL and LVDS available.

Nvidia’s Clara AGX developer kit can be used to develop software-defined, AI-enabled, real time, point-of-care medical devices. It delivers real-time streaming connectivity and AI inference via the Jetson AGX Xavier, Arm-based SoC, the RTX 6000 GPU and the ConnectX SmartNIC with 100GbE connectivity. The kit also includes full-stack GPU-accelerated libraries, software development kits and reference applications.

Adding a Spectrum card to the Clara system allows sensor signals to be acquired, generated, stored and processed, explained the company. Data can be streamed between the cards, the processor and the GPU. The GPU’s high speed parallel processing capabilities ensure that large volumes of data can be acquired and generated by the Spectrum products. Spectrum already offers SCAPP (Spectrum’s CUDA Access for Parallel Processing) for GPU-based data processing.

The Nvidia Clara is already used in biomedical research programmes and medical devices, around imaging, genomics, patient monitoring and drug discovery.

The M2p- and M4i-series cards all carry a five-year product warranty, with free software and firmware updates. There is customer support directly from the engineering team for the lifetime of the product.

http://www.spectrum-instrumentation.com

> Read More

LEM claims HMSR DA current sensor is a world first

Multi-protocol microcontroller supports Ethernet and Industry 4.0

PIC and AVR microcontrollers extend 8-bit families

Spectrum offers driver support for the Nvidia Clara AGX

About Smart Cities