International Rectifier have announced the introduction of the IR66xx series of high performance 600V ultra-fast Trench-gate Field Stop insulated-gate bipolar transistors (IGBTs). The new high power family of devices features extremely low conduction and switching losses optimized for welding applications.
Utilizing Trench thin wafer technology to offer lowest conduction and switching losses, the new devices are co-packaged with a soft recovery low Qrr diode and feature ultra-fast switching (8 KHz – 30 KHz) with 5 µs short circuit rating. The 600 V IGBTs also feature low VCE(ON) and positive temperature coefficient for easy paralleling.
IR Launch Welding IGBT - [Link]
A breakout board for the 555 timer exposing the leads astable or monostable implementation.
Hello, my name is Patrick Grady and I’m a highschool senior in the US. I’m an avid programmer and tinkerer and love anything related to electronics and computers.
This past winter I took a class in Digital Electronics and was introduced to the 555 timer. One of the most common applications of the 555 timer is the astable mode, which is unfortunately rather clunky to build on a breadboard. This 555 breakout board does more than expose the 555’s eight pins: it sets you up to run your 555 timer in astable mode with slots to insert two resistors and a capacitor of your choice. This board eliminates all the wiring for the 555 timer. The 555 Timer Breakout Board Plus will cut out the tedium of setting up the 555 timer and will allow hobbyists to dig straight in to their projects.
As a electronics hobbyist myself, I recognize the usefulness of this simple device, but also acknowledge its relevance is limited to the niche market of hobbyist electronics. If you want this device or think a friend could use it, please contribute to the campaign and buy a 555 timer breakout board!
555 Timer Breakout Board Plus - [Link]
A four-channel remote control built using the EnOcean Pi by Kerry Wong:
In my last couple of blog posts, I did a brief overview of the EnOcean Pi sensor kit from Newark and demonstrated how to compile and run the example code using a Raspberry Pi. In this blog post, I will show a real world example – a four-channel remote control built using the EnOcean Pi in conjunction with the EnOcean pushbutton module.
A four channel remote control using EnOcean Pi - [Link]
The Self-organizing Systems Research Group at Harvard has created a “thousand robot swarm“, named Kilobots, which can self-arrange themselves into shapes and patterns. Each robot in the group moves uses two vibrating motors to move and an infrared TX/RX pair to communicate with its neighbors and to measure their proximity. The Kilobot robot software and hardware design are available open-source for non-commercial use.
Self-organizing Kilobots - [Link]
Embedded modules may surprise you by their contribution and an overall costs savings.
As we know „embedded module“ is a quite wide term and it can represent a powerful microcomputer with OS, but it can also be a significantly simpler module with a microcontroller and peripherals, still able to add considerable functionality to a target device.
Typical representatives of useful modules, which add a lot – without big costs are so called quick start modules from company Embedded Artists. Their contribution is in a ready-made „tuned up“ PCB containing for example in case of module LPC4088 QuickStart Board (EA-QSB-016) the microcontroller itself (Cortex- M4), memory, display controller and many interfaces like Ethernet, USB, UART, SPI, CAN, PWM, Analog In/Out, I2C, XBee compatible connector and other.
Especially at low and mid-volume production batches their contribution is mainly in the fact, that it is a really proven solution with a guaranteed operating temperatures range, proper ESD protection and mainly – supported by a wide scale of development tools (free). In case of solving of problems, it´s still possible to contact customer support of company and a lot of hints for successful usage, source codes and libraries can be found directly on the producer´s website.
Try to go easier way - [Link]
World’s smallest Arduino Mega clone: an enhanced electronics prototyping platform. Better than a Mega, smaller than an Uno! by MEGADOM:
The MegaCube is an affordable and enhanced electronics prototyping platform meant for the intermediate to pro user looking for more than what the Arduino Mega offers in a package that is smaller than an UNO and is easily embedded in a project at a lower cost than the Arduino Mega or its clone offerings.
The Fantastic MEGADOM MegaCube (Arduino Clone) – [Link]
Microsoft have released a non-commercial version of Windows based on Windows 8.1 to run on the Intel Galileo development board. A spokesperson for Microsoft said “This preview Windows image is another opportunity for makers and developers to create, generate new ideas and provide feedback to help Microsoft continue making Windows even better on this class of device”.
The board and OS are part of the Windows Developer Program for the IoT (Internet of Things) which Microsoft hopes will encourage developers of Internet-connected devices to experiment with Windows platforms. The Galileo kits include the standard Arduino Wiring API and a subset of the Win32 API. At the moment Linux is the OS of choice among makers and for the next generation of devices but Microsoft hopes to break that dominance. Intel released an update to the original Galileo Gen 1 board earlier this month which features an improved control of its PWM (Pulse Width Modulated) output signals to make the board better suited for the management of 3D printers and robotic applications. Galileo Gen 2 can also be powered from the Ethernet port which the earlier Gen 1 version did not allow.
Galileo now runs Windows - [Link]
In this series of video I want to take a look at what the industry has to offer in terms of DC Power and Energy Measurement Meters / Analyzers (Analysers). There seems to be a distinct lack of affordable instrumentation in this area.
DC Power and Energy Measurement Meters – Pt 1 - [Link]
I explain buck converters (a type of switch mode power supply) and how to build a 5V 5A power supply using an LM2678.
How to build a switch mode power supply! DC-DC buck converter tutorial! - [Link]
A DIY 60W adjustable electrical load project from Electro-Labs:
In this project, we are building a useful board which should take place on your bench. It is an adjustable electrical load which can sink up to 5A @ 60W continuously. This board will come to aid when you need to draw an exact amount of current from a supply. For instance to learn the current rating of a power supply, measure the heat dissipated on a circuit element, discharge a battery etc.
The electrical load lets you monitor the current by using the ampermeter on it. A multiturn variable resistor is used to set the current precisely. The circuit is powered by a 15V-18V power adapter. A large heatsink on the board helps dissipating the heat generated on the MOSFET which is the main component used for limiting the current.
DIY 60W adjustable electrical load - [Link]