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Dual 15A or Single 30A µModule Regulator with Stacked Inductor Package is 96% Peak Efficient

Posted on by mixos

Analog Devices  announces the Power by Linear LTM4662, a dual 15A or single 30A step-down µModule regulator in a BGA package with an exposed stacked inductor for improved thermal dissipation properties. The remaining components, the MOSFETs, DC/DC controller and supporting components, are over-moulded and the complete device is housed in a 11.25mm x 15mm x 5.74mm BGA package. With limited airflow, the LTM4662 is easily cooled because the inductor transfers heat from the power stage to the surrounding ambient air. The LTM4662 performs at up to 96% peak efficiency, enabling it to deliver a full 30A continuously at 12VIN to 1.0VOUT at 70°C ambient with 200LFM airflow. With the dual regulator design, small package size and precise voltage accuracy, the LTM4662 meets the PCB area constraints of densely populated system boards to power low voltage and high current devices such as FPGAs, ASICs, microprocessors and GPUs. Applications include PCIe boards, communication infrastructure, cloud computing-based systems, as well as medical, industrial, and test & measurement equipment.

The LTM4662 operates from a 4.5V to 20V input voltage range. With 5V external bias, the device can operate from 2.375V. The output voltages are adjustable from 0.6V to 5.5V, enabling the device to generate not only low voltage for digital devices but also 2.5V, 3.3V and 5V which are commonly needed as system bus voltages. Total output voltage DC accuracy is guaranteed at ±1.5% over line, load and temperature (–40°C to 125°C). Two LTM4662s can current share to deliver 60A to a load. Moreover, the onboard remote sense amplifiers on both outputs compensate for voltage drops caused by trace impedance of the PC board due to large load current. The LTM4662 has selectable internal or external feedback loop compensation, enabling users to optimize loop stability and transient performance while minimizing the number of output capacitors.

The LTM4662’s switching frequency can be programmed from 250kHz to 1MHz with one resistor, and can be synchronised to an external clock ranging from 250kHz to 1MHz for noise-sensitive applications. Protection features include overvoltage and overcurrent protection.

The LTM4662 operates from –40°C to 125°C. For more information, visit www.linear.com/product/LTM4662

Exynos 9 series applications processor has deep learning based software

Posted on by mixos

The new Exynos 9810 brings premium features with a 2.9GHz custom CPU, an industry-first 6CA LTE modem and deep learning processing capabilities

Samsung Electronics, a world leader in advanced semiconductor technology, today announced the launch of its latest premium application processor (AP), the Exynos 9 Series 9810. The Exynos 9810, built on Samsung’s second-generation 10-nanometer (nm) FinFET process, brings the next level of performance to smartphones and smart devices with its powerful third-generation custom CPU, faster gigabit LTE modem and sophisticated image processing with deep learning-based software.

In recognition of its innovation and technological advancements, Samsung’s Exynos 9 Series 9810 has been selected as a CES 2018 Innovation Awards HONOREE in the Embedded Technologies product category and will be displayed at the event, which runs January 9-12, 2018, in Las Vegas, USA.

“The Exynos 9 Series 9810 is our most innovative mobile processor yet, with our third-generation custom CPU, ultra-fast gigabit LTE modem and, deep learning-enhanced image processing,” said Ben Hur, vice president of System LSI marketing at Samsung Electronics. “The Exynos 9810 will be a key catalyst for innovation in smart platforms such as smartphones and personal computing for the coming AI era.”

With the benefits of the industry’s most advanced 10nm process technology, the Exynos 9810 will enable seamless multi-tasking with faster loading and transition times between the latest mobile apps. The processor has a brand new eight-core CPU under its hood, four of which are powerful third-generation custom cores that can reach 2.9 gigahertz (GHz), with the other four optimized for efficiency. With an architecture that widens the pipeline and improves cache memory, single-core performance is enhanced two-fold and multi-core performance is increased by around 40 percent compared to its predecessor. Continue reading “Exynos 9 series applications processor has deep learning based software”

LT8364 DC/DC converter can be configured multiple ways

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Analog Devices has announced the LT8364 current mode, 2MHz step-up DC/DC converter. It has an internal 4.0A, 60V switch and operates from an input voltage range of 2.8 to 60V.

The ‘Power by Linear’ LT8364 is suitable for applications with input sources ranging from a single-cell Li-Ion battery to multi-cell battery stacks, automotive inputs, telecomms power supplies and industrial power rails.

The LT8364 can be configured as either a boost, SEPIC or an inverting converter. Its switching frequency can be programmed between 300kHz and 2MHz, enabling designers to minimise external component sizes and avoid critical frequency bands, such as AM radio, says Analog Devices. It offers over 90 per cent efficiency while switching at 2MHz. Burst Mode operation reduces quiescent current to only nine microA while keeping output ripple below 15mVp-p. There is the option of a small 4.0 x 3.0mm DFN, or high voltage MSOP-16E package, with small external components to ensure a compact footprint while minimising cost, adds Analog Devices.

The LT8364’s 100-mOhm power switch delivers efficiencies of over 95 per cent. It also offers spread spectrum frequency modulation to minimise EMI concerns. A single feedback pin sets the output voltage whether the output is positive or negative, minimising pin count. Other features include external synchronisation, programmable under-voltage lockout (UVLO), frequency foldback and programmable soft-start.

The two versions available are the LT8364EDE in a 4.0 x 3.0mm DFN-12 package and the LT8364EMSE which is offered in a high voltage MSOP-16E (with four pins removed for high voltage spacing). Industrial temperature (operating at -40 to +125 degree C), the LT8364IDE and LT8364IMSE, and high temperature models, the LT8364HDE and LT8364HMSE, with temperature ranges of -40 to +150 degree C, are also available. All versions are available from stock.

The design includes a bias pin for higher efficiency and positive or negative output voltage programming is possible with a single feedback pin. The device has optional spread spectrum frequency modulation to minimise EMI.

CADLAB.io – A True Version Control For Managing Hardware Projects

Posted on by Ayo Ayibiowu

Version control is a system that records changes of a file or set of files over time so that you can recall specific versions later. Version control was developed to help teams work on tasks together in a more collaborative way. In the last few years, version control platform has often been focused on software-based projects. Git is the preferred version control tool for most developers since it has multiple advantages over the other systems available and it’s the backbone of the famous GitHub.

CADLAB.io Version Control

So, version control tools are great for software tasks, but what about Hardware? Unlike open software, which has popular collaborative tools like Git (and websites built on it, like GitHub), Subversion, and Mercurial, hardware has no system for version control. Github has been used in the past for hardware project sharing and even offer some level of version control (very limited, hardware design are displayed as an image). For software, version control is pretty straightforward, since you can just show the “diffs” between two files as highlighted text. But how do you do that for hardware, where the files tend to be in binary formats, which could be proprietary sometimes? Cadlab.io from DevEngineering brings a change in this space.

CADLAB.io is a cloud-based hardware development platform which provides engineers and makers with a version control system and collaboration tools for hardware design. Based on Git, it allows you to keep native PCB design files in a repository and view, compare and comment on any part of a PCB in a browser. Cadlab is designed for hardware designs and not just comparing design images, but truly compare PCB and schematics designs.

Just like Github, CADLAB.io supports public and private projects. CADLAB allows users to create an unlimited number of public projects for various hardware project and even upgrade those project to private mode only, but this comes at a cost. CADLAB currently supports only Autodesk EAGLE PCB designs with promises of adding more support to other PCB design software like KiCAD, Altium, OrCAD, and others. CADLAB can render all your Autodesk Eagle PCB schematics and layouts from version 6 upwards. You can compare design iterations, find the necessary ones quickly, download it and continue working on it in the CAD application.

CADLAB provides support for adding comments and even annotations to a design file. Annotations can be added to pad or a block of wires, and this will profoundly foster good collaboration between teams and also make hardware project to be easily scalable. Github users are not left behind, CADLAB integrates with GitHub. Existing GitHub design can be viewed with CADLAB and users are allowed to even upload their files directly from Github. With a CADLAB Chrome plugin, users can see their design files live while working on Github.

Despite the robust features with CADLAB, it doesn’t yet support merge request and forks, a primary functionality of version control and open source project. Merge requests and forks will allow people to contribute to a public project. CADLAB.io is currently available in a three subscription package. A free plan for public only projects, an Individual plan that costs $6 per month, and a Company plan that costs $15 per month. You can find more information about the pricing here.

STM32CubeProgrammer all- in-one software tool

Posted on by mixos
STM32CubeProgrammer (STM32CUBEPROG) is an all-in-one multi-OS software tool for programming STM32 microcontrollers. It provides an easy-to-use and efficient environment for reading, writing and verifying device memory through both the debug interface (JTAG and SWD) and the bootloader interface (UART and USB). STM32CubeProgrammer offers a wide range of features to program STM32 microcontroller internal memories (such as Flash, RAM, and OTP) as well as external memories. STM32CubeProgrammer also allows option programming and upload, programming content verification, and microcontroller programming automation through scripting. STM32CubeProgrammer is delivered in GUI (graphical user interface) and CLI (command-line interface) versions.

Isolated Power Supply for RS485, RS422, RS232, SPI, I2C and Power LAN

Posted on by mixos

Mini Isolated Power Supply is designed for CAN, RS-485, RS-422, RS-232, SPI, I2C, Low-Power LAN applications. The power supply provides +/- 5.50 V DC symmetrical outputs with load current 500mA from 5V DC input. The project is built using SN6505A IC from Texas instruments. The SN6505A is a low-noise, low-EMI push-pull transformer driver, specifically designed for small form factor, isolated power supplies. It drives low profile, center-tapped transformers 5 V DC power supply. Ultra-low noise and EMI are achieved by slew rate control of the output switch voltage and through Spread Spectrum Clocking (SSC). The SN6505 consists of an oscillator followed by a gate drive circuit that provides the complementary output signals to drive ground referenced N-channel power switches. The device includes two 1-A Power-MOSFET switches to ensure start-up under heavy loads. The internal protection features include a 1.7A current limiting, under-voltage lockout, thermal shutdown, and break-before-make circuitry. SN6505 includes a soft-start feature that prevents high inrush current during power up with large load capacitors.

Isolated Power Supply for RS485, RS422, RS232, SPI, I2C and Power LAN – [Link]

Isolated Power Supply for RS485, RS422, RS232, SPI, I2C and Power LAN

Mini Isolated Power Supply is designed for CAN, RS-485, RS-422, RS-232, SPI, I2C, Low-Power LAN applications. The power supply provides +/- 5.50 V DC symmetrical outputs with load current 500mA from 5V DC input. The project is built using SN6505A IC from Texas instruments. The SN6505A is a low-noise, low-EMI push-pull transformer driver, specifically designed for small form factor, isolated power supplies. It drives low profile, center-tapped transformers 5 V DC power supply. Ultra-low noise and EMI are achieved by slew rate control of the output switch voltage and through Spread Spectrum Clocking (SSC). The SN6505 consists of an oscillator followed by a gate drive circuit that provides the complementary output signals to drive ground referenced N-channel power switches. The device includes two 1-A Power-MOSFET switches to ensure start-up under heavy loads. The internal protection features include a 1.7A current limiting, under-voltage lockout, thermal shutdown, and break-before-make circuitry. SN6505 includes a soft-start feature that prevents high inrush current during power up with large load capacitors.

Features

  • Input Supply 5V DC
  • Output +/- 5.50 V DC symmetrical outputs
  • Output Current 500mA Approx.
  • Ultra-Low EMI
  • Spread Spectrum Clocking
  • Precision Internal Oscillator Options: 160 kHz (SN6505A)
  • Slew-Rate Control
  • 7 A Current-Limit
  • Low Shutdown Current: <1 μA
  • Thermal Shutdown
  • Wide Temperature Range: –55°C to 125°C
  • Soft Start to reduce In-rush current

Applications

  • Isolated Power Supply for CAN, RS-485, RS-422, RS-232, SPI, I2C, Low-Power LAN
  • Low-Noise Isolated USB Supplies
  • Process Control
  • Telecom Supplies
  • Radio Supplies
  • Distributed Supplies
  • Medical Instruments
  • Precision Instruments
  • Low-Noise Filament Supplies

Schematic

Parts List

Photos

Video

18 Most Helpful Raspberry Pi Tutorials

Posted on by Ayo Ayibiowu
The Raspberry Pi

After having grazed the maker’s ecosystem in the year 2012, the Raspberry Pi has attracted a huge number of hobbyists and tinkerers all over the world. It has been the world’s most popular single board computer and a close competitor to the Arduino since then. If you have never heard of the Raspberry Pi, then look at wikipedia article.

Despite the huge fame that has followed the Raspberry Pi and some amazing projects created with it, some questions are still being asked like; What can you do with it and why would you want to? I remember when I first got my own Raspberry Pi back in 2013, I never touched it for about a year because this sort of questions was ramping on my head and couldn’t find any convincing answer then.

The Raspberry Pi is a great single-board computer that has grazed the surface of the earth with some amazing power and capabilities that are often underestimated. There is hardly anything you can not build with the Raspberry Pi, and yes, you can even build a Raspberry Pi Artificial Intelligence Cluster (build your own Jarvis, my favorite project). If you’re new to the life of Pi or mid-level into the into Pi then this post will provide some helpful Raspberry Pi tutorials and resources to help you fully utilize the Pi.

Getting Started with Raspberry Pi

This is a must tutorial for newbies and it basically sums up the bits of getting the Raspberry Pi out of the box and making your first Hello World program. It covers the general discussion about the Raspberry Pi, installing the Raspberry OS, OS choices, applications of the Raspberry Pi, and several others.

Installing Raspbian OS

Despite the fact that the Raspberry Pi can be used with some other operating system, the Raspbian OS has been the most commonly used on the Pi. These guides will focus mainly on installing the Raspbian OS on the Raspberry Pi.  It works in a way similar to what you see on windows, when the Pi boots, it will look for a specific boot file on the SD card, and once that file has been found, it will begin to execute the code inside and the OS loads.

Python for the Raspberry Pi

The Raspberry Pi can be programmed with different programming languages, including Java, C, C++, and Python. Despite the fact that all these languages work quite well on the Raspberry Pi, Python is the most used of all mostly due to its flexible and easy language. Learning different languages is the best thing that any maker can do, but as a first language, Python is a good language to start with. There are many tutorials on Python online (even a few on Maker.io), so here are a whole bunch of them

IoT

Internet of Things is now becoming the mainstream buzz and learning how to build your own IoT-enabled projects for the Pi can allow the Pi to be accessed over the internet, control external devices using a mobile device, and take sensor readings and print them to a website is going to be a good idea.

Others

The above tutorials and resources could be the life-saving guide you might need to start creating with the Raspberry Pi. Some of the projects demonstrated have shown how capable the single board computer can be.

SMARC module for Industrial Ethernet

Posted on by mixos


eCOUNT embedded’s ES-1XXX is the company’s first Computer-on-Module family to support the SMARC 2.0 standard from the SGET.

The modules are equipped with ARM Cortex-A9 based Intel Cyclone V SoCs (formerly Altera), which integrate a configurable FPGA. By integrating the Intel Cyclone V SoCs on SMARC Computer-on-Modules customers benefit from an application-ready ultra-low-power platform for extremely cost-efficient custom IIoT designs. Compared to full-custom designs, the development and certification effort is significantly reduced by up to 50 to 90 percent thanks to the provision of complete BSPs, carrier boards, accessories and FPGA IP as well as comprehensive documentation. Thanks to the configurable FPGA, the SMARC modules can be used in very different configurations. Core FPGA IP, for example for standard industrial Ethernet protocols such as Profinet and EtherCAT, is available off-the-shelf. Many other possible configurations are available including as I/O controllers, big data loggers for data acquisition, network controllers or extremely energy-efficient HMIs with solar power supply as well as generic configurations.

The ES-1XXX modules operate in the extended temperature range of -40 to +85°C and offer a life cycle of at least 10 years. They are available in dual and single-core Intel Cyclone V SoC configurations (SE and SX) with up to 110KLE and 925 MHz and up to 2 GB of DDR3 RAM. [via]

eCOUNT embedded –  www.ecount-embedded.de

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