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19 Oct 2014

Who is the winner of umodule demoboard from Linear technology? In addition to getting to know the winner, you can also watch the video record from webinar…

Linear Technology’s family of DC/DC Module products simplifies your analog design. By integrating the DC/DC controller, power switches, magnetic, and a modest amount of capacitance, uModules power products will save precious space on the PCB and reduce the solution weight, development time, BOM qualification and procurement effort. You could find this out during webinar about Linear technology modules.From all of those who filled in our questionnaire after webinar we have drawn winner of the uModulu demoboard. The winner is František Bulko from EVPÚ a.s.
Congratulations to the winner.

Your way to simple and efficient power supply design with Linear Technology - [Link]

18 Oct 2014
High-energy light is absorbed by a special organic coating that produces pairs of triplets that can be efficiently absorbed  by underlying inorganic solar cells.

High-energy light is absorbed by a special organic coating that produces pairs of triplets that can be efficiently absorbed
by underlying inorganic solar cells.R. 

Colin Johnson @ nextgenlog.blogspot.com:

Hybrid solar cells that harvest all of the suns energy, instead of just a few narrow bands, could transform the energy economies worldwide: R. Colin Johnson @EETimes

Hybrid Solar Cells Promise 95% Efficiency - [Link]

18 Oct 2014

FTCSN7PI1A5RB78.MEDIUM

by ajoyraman @ instructables.com:

USB connected TI TMS320F28027 based ZRLC Tweezers with

Most Digital multi-meters measure Resistance and Capacitance and LC-meters can measure Inductance and Capacitance. Presented here is a ZRLC meter which can measure Resistance, Capacitance, Inductance and Complex Impedance.

The hardware is built around a TMS320F28027 micro-controller an 8-port-analog-switch ADG714 from analog-devices and a Microchip rail-to-rail dual operational-amplifier MCP6022.

[via]

USB Tweezers for ZRLC measurements - [Link]

18 Oct 2014

by TheSignalPathBlog @ youtube.com:

In this episode Shahriar reviews the new Keithley 2450 Source Measure Unit (SMU). This model, which is the successor to the widely adopted Keithley 2400, offers performance improvements as well as a brand new interface platform with multi-point touch screen.

The review demonstrated the instruments GUI, scripting capabilities through the TSP interface and various performance parameters. Furthermore the scripting features are used to measure super capacitor capacity, the performance of a wireless charging system, characterization of optoelectronic components and semiconductor elements.

Keithley 2450 Source Measure Unit (SMU) Review and Experiments - [Link]


18 Oct 2014

by EEVblog @ youtube.com:

Dave tears down the new US$399 Rigol 4 channel 50MHz DS1054Z oscilloscope.
How can they get such incredible value for the price?

EEVblog #674 – Rigol DS1054Z Teardown - [Link]

17 Oct 2014

fwatch-full-side

by ohwr.org:

F*watch is a fully open electronic watch project featuring an integrated GPS receiver.
The development started at CERN as an after-work project to make a special present for a retiring colleague who likes hiking and timing.
The full design (electronics, mechanics and software) is available under free licenses and the design is exclusively made with free tools.

F*watch – a fully open electronic watch - [Link]

17 Oct 2014

F7YSIM6HMEXSYX5-600x401

ajoyraman posted a tutorial on how to make a DIY USB-matchbox oscilloscope, an instructable here:

In order to economize on the cost of an enclosure while still providing an aesthetic unit the Aj_Scope2 is enclosed in a large size cardboard matchbox enclosure.
The USB connection to the PC is on one end while the Audio-Jack for the signals to be monitored is on the other.
A ‘Busy’ LED is provided on one corner at the top and a ‘Reset’ switch is provided diagonally opposite.
The ‘Reset’ switch provides a restart of the micro-controller is the worst-case of hang-up. This typically occurs when the operator selects a trigger threshold which is out of limits with respect to the waveform being observed. If the Aj_Scope2 is operated correctly this switch is seldom used.

[via]

DIY USB-Oscilloscope in a matchbox - [Link]

17 Oct 2014

Turn your toaster oven into your own solder reflow factory shop using the Reflow Master Shield!!!

The Reflow Master Shield from Paladin Enabling Technologies is an Arduino shield that turns your normal toaster oven into a reflow oven. A reflow oven is used in the production of electronics to change solder paste from a paste form to a liquid form and lastly to a solid form. This results in all your components being soldered for you in one run.

But let me share with you why I’ve created the Reflow Master Shield and why you would want one.

Reflow Master Shield – Arduino Solder Reflow Oven - [Link]

17 Oct 2014

obr1602_uvod

Compressed gas for cleaning – Dust cleaner, brings huge savings for the price of small limitations.

The name of this article might also be like „Dust Off or Dust Cleaner? Both are the sprays – compressed air for dust removal. Dust Off is a well known, long-term well-proven spray for cleaning from dust and other loose dry particles. Dust Off provides absolute safety in a form of non-flammability. However, this indisputable plus is also reflected in a price.That´s why we bring you also a cheaper alternative – spray Dust Cleaner, which provides practically the same service like Dust Off, but for approximately only a 1/3 price. Even though compressed (liquefied) gas Dust Cleaner is flammable, but it represents much cheaper solution for all cases, when there´s no risk of ignition. for example when we work with a switched-off device, which isn´t hot at the same time and there´s no source of sparks near. That´s why it´s suitable for example for cleaning of:

  • plated copper boards (disconnected from a power supply)
  • micro-assemblies, servo-motors etc.
  • optics, lenses and precision mechanics
  • PC and other communication devices
  • fans and heatsinks
  • fiberglass cables connections
  • connectors

Similarly like Dust Off, even the Dust Cleaner produces a strong air jet, which is in majority of cases strong enough to remove various dry contaminants. It finds its place everywhere, where other cleaning methods (for example with liquids) are not suitable, or they might leave various residues. Detailed information can be found in the Dust Cleaner and also Dust Off datasheets.


Dust Cleaner will blow away dust for a 1/3 price - [Link]

17 Oct 2014

mos2-piezoelectric-generator

by Darren Quick @ gizmag.com:

Researchers from Columbia University and the Georgia Institute of Technology are laying claim to having observed piezoelectricity in an atomically thin material for the first time. The effect was demonstrated in the world’s thinnest electric generator made from a two-dimensional molybdenum disulfide (MoS2) material, which had previously been predicted to exhibit such properties.

Two-dimensional piezoelectric material forms basis of world’s thinnest electric generator - [Link]



 
 
 

 

 

 

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