Wafer-scale-packaged integrated FET switches handle 1 – 4A

by Graham Prophet @ edn-europe.com:

Silego Technology has developed a series of integrated power switches for use in mobile and battery powered products, to carry out power gating of functional blocks within a design; the devices come in sub-mm-size chip scale packages, handle currents from 1 to 4 A, and integrate functions such as in-rush current limiting and over-current or thermal protection.

Wafer-scale-packaged integrated FET switches handle 1 – 4A – [Link]

Jump Over The Limits of ARM With ExaGear Desktop

While the most of Linux programs are compiled to run on Intel x86 processors, the virtualization softwares appear to give the ability to run Intel x86 application on ARM-based Mini PC such as Raspberry Pi.

In this way, Eltechs, a high-tech startup company, had produced a new binary translator called “ExaGear Desktop”. It runs applications for the conventional desktop and server x86 processors on energy-efficient ARM CPU without recompilation.

ExaGear Desktop creates a second system known as the ‘guest’ system. Once installed, you can switch between the guest and your regular (‘host’) system using the ExaGear and exit commands. Inside the guest system, apt-get and dpkg are used to install Intel x86 software. The guest system is a transparent operation so there is no difference between running x86 applications on x86-based or ARM-based platform. It also gives you the ability to run Windows applications by installing Wine.

ExaGear is compatible with many of ARM-based Mini PCs such as Raspberry Pi 1, Raspberry Pi 2, ODROID, CubieBoard, CuBox, Utilite, Jetson TK1, Wandboard, Banana Pi etc. It also can run on Chromebook with Linux.

Compared with QEMU, another open-source virtualization software, ExaGear is  5 time faster and has  much better performance with CPU and memory as the benchmark results shown when running on Raspberry Pi 2. You can see the benchmarking details and results here.

ExaGear is available for ordering through the official website with a price range between $16.45 and $56.45 according to the hardware used. You can find more information at the product page. And it may be useful to take a look at this review.

Tiny ESP8266 Breakout Board

Stavros made a very small ESP8266 breakout board:

A very small breakout for the ESP8266. Includes all necessary pullups/pulldowns for it to boot to your code, a LDO regulator, a 3V3 output pin and enough breadboard space for one row on each side on a standard breadboard.

Tiny ESP8266 Breakout Board – [Link]

Keysight MXA signal analyzer / Spectrum analyzer review, analysis & experiments

Keysight MXA revision-b signal analyzer / Spectrum analyzer review, analysis & experiments from The Signal Path:

In this episode Shahriar reviews the long awaited Keysight MXA Signal Analyzer (N9020B). The new X-Series Spectrum Analyzers from Keysight offer an entirely re-designed GUI interface which supports multiple tabs as well as multi-touch interaction.

Keysight MXA signal analyzer / Spectrum analyzer review, analysis & experiments – [Link]

InGaAs TFET, a potential alternative to MOSFET in future ultralow power chips

by Graham Prophet @ edn-europe.com:

Belgian researchers from imec, at a conference** dedicated to compound semiconductor technology, are to present promising device results with a InGaAs-only TFET (tunnel field-effect transistor) that achieves a sub-60 mV/decade sub-threshold swing at room temperature.

snapVCC – A snap-on regulated 3.3 V/5 V power supply

by Mahesh Venkitachalam @ hackaday.io:

I use 9 V batteries for a prototyping a lot of my electronics projects. I was inspired by the Sparkfun breadboard power supply board, and wanted to create something similar, but with a more convenient form factor for use with a 9V battery. The design I came up with, is a tiny snap-on PCB with the regulator components on one side, and 9V battery contacts on the other. The idea is that the power supply will become part of the battery.

snapVCC – A snap-on regulated 3.3 V/5 V power supply – [Link]

Zero W, New €10 Raspberry Pi with WLAN and Bluetooth

Five years ago (on 29 February 2012, to be exact) the original Raspberry Pi was unveiled – on this celebrated first day the available stock was sold out within a few minutes, more than 100,000 boards were ordered and the Farnell and RS Components web stores where down for while because of the high demand…
To celebrate this fifth anniversary the Raspberry Pi Foundation introduces a new product: the Raspberry Pi Zero W, that is, the Raspberry Pi Zero complete with WLAN and Bluetooth. The bad new is that this version costs twice as much as the original Zero, but the good news is that it is nevertheless available for only $10 (without accessories).


The Zero was launched in November of 2015 and has since then acquired a camera connector; these days you could hardly imagine anything or contains a Zero – from miniature fruit machines tot electric skate boards.
A disadvantage of the original Zero was the limited connectivity: the only USB port was often used for a wireless dongle; for connecting peripherals such as a keyboard, mouse and network adapter a USB hub was required, which often cost more than the Zero itself.
By integrating the Cypress CYW43438 on the board this problem is solved for the Zero W: this is the same chip that on the RPi 3 model B provides the 820.11n WLAN and Bluetooth 4.0 connectivity. Listing all the features of the Zero W:

  • 1 GHz single-core CPU
  • 512 MB RAM
  • mini HDMI port
  • micro-USB On-The-Go port
  • micro USB power
  • HAT-compatibele 40-pin header
  • headers for composite video and reset
  • CSI camera connector
  • 802.11n WLAN
  • Bluetooth 4.0

The Zero W is accompanied by an ‘official’ enclosure.
This has three interchangeable lids: a closed lid, a lid with openings for the GPIOs, and a lid with opening and attachment facility for a camera.

Source: Elektor

PCB-Investigator Now Supports Browser-Based PCB Design Review

PCB-Investigator is a CAD software developed by EasyLogix for circuit board design and PCB quality assurance. Its latest version came earlier in February with a new browser interface that enables electronics assemblers to do PCB review processes without the need for local installation.

By using the ODB++ data format, PCB-Investigator creates a common database, which documents every change, and is accessible to everyone involved in the development, quality assurance and production process. With the software’s comprehensive visualization, export and import capabilities, all layout reviews are easier. Errors can be fixed earlier and prototypes can be reduced. Further improvements in version 8.0 are an improved component library with editor capability as well as clearance and creepage distance measurement.

(more…)

LTM9100 – Anyside™ High Voltage Isolated Switch Controller with I²C

The LTM9100 μModule is an all-in-one solution for controlling, protecting, and monitoring high voltage power supplies up to 1000VDC. A 5kVRMS galvanic isolation barrier separates the digital interface from the switch controller, driving an external N-channel MOSFET or IGBT switch. Isolated digital measurements of load current, bus voltage, and temperature are accessed via the I2C/SMBus interface, enabling power and energy monitoring of the high voltage bus. The LTM9100 saves design time, certification effort, and board area by wrapping all the needed functionality, including digital telemetry and isolated power, in a compact BGA package.

LTM9100 – Anyside™ High Voltage Isolated Switch Controller with I²C – [Link]

YouTube Subscriber Counter With ESP8266

by @ instructables.com:

I was inspired by the Play Button awards YouTube sends out for subscriber milestones and whipped up a simple circuit using an ESP8266 wifi board and seven segment display to show off my realtime subscriber count. This is a great IoT beginner project, with just a little soldering and a code personalization required to make it work for your own account.

YouTube Subscriber Counter With ESP8266 – [Link]