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11 Aug 2014

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Perhaps the most frequently used rechargeable batteries on the market nowadays – Lithium-Polymer (Li-Po) can be found also in our offer.

From the beginning of electronics, the world searches for an “ideal” rechargeable battery. So far such a battery doesn´t exist (maybe supercapacitors in the future), but Li-Po (Li-Pol) cells are quite near to an ideal in some aspects.

Very low self-discharge (approx. 5% / month), high voltage of a cell (3,7-3,8V average), high energy density and a low weight, considerably stable discharge voltage and a possibility to recharge anytime are one of the main advantages of Li-Po cells. Another benefits are advantageous flat shape, high variability in dimensions and a long lifetime. No wonder, that Li-Po cells have become no. 1 in consumer electronics, hand tools and in many industrial devices.

Perhaps the only drawback of these cells is their lower chemical stability at overcharging (in a corner case ending up with a fire). But that´s the case which is practically eliminated at a common operation with a suitable charging circuit (chip or a charger intended for Li-Po).

  Basic principle at usage is not to exceed approx. 4.25V charging voltage and the battery is almost discharged at a voltage below approx. 3.0V (2.75V). On the very end of a discharge cycle, the inner resistance slightly increases, what can cause a slight heating of a battery at higher currents – it is a normal behavior. Charging is usually based on a method constant voltage/ limited current. In principle it´s possible to use the same chargers and charging circuits for Li-Ion as well as Li-Po cells.

At a usual usage and discharging to say 20-80%, Li-Po cells will reward you by a reliable operation and a long lifetime. Flat shape is ideal for various handheld equipment, as well for usage in flat enclosures. In respect to a low self-discharge it´s possible to use Li-Po cells even as a backup energy source.

In our offer can be found several several Li-Po types from company EEMB with a capacity of 130 mAh to 2000 mAh. Exact list of available types and datasheets can be found below this article. Upon request, we´re able to provide you also many other types.


Try the most favorite type of batteries - [Link]

3 Aug 2014

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High efficiency, low standby power consumption and a power reserve, all this can be gained with a new adapter from our portfolio.

Minwa NR120P150PGS/E+ is in fact an “ordinary“ adapter with a fixed output voltage 12VDC/1500 mA. But it´s worth to mention, that it meets everything, what we usually require from a modern mains adapter:

  • modern design (SMPS)
  • high efficiency
  • low standby power consumption (<0.3W)
  • meets all latest regulations – EuP2, ErP,…

And finally a bonus – outstanding price. Adapters from company Minwa are in general always price-affordable, but here it is even more obvious. When we compare a one level weaker adapter NK120P100PGS/E+ (12V/1000 mA) with NR120P150PGS/E+ we´ll find, that for the price higher +14% (already at purchase of one piece) we´ll gain +50% power. So if you have a device requiring up to 1.5A current, or you use a 1A adapter at almost 100% and you want to gain some power reserve and probably a longer lifetime of an adapter, you can do so with minimum expenses.

Plus 50% of power for a scant one Euro? - [Link]

1 Aug 2014

SDS6062V-oblique-1200-915

by elektor.com:

In a recent press release the Saelig Company Inc have announced that they will be distributing a new 100MHz four-channel benchtop oscilloscope from Owon. The Far-Eastern manufacturers have been building a reputation for quality, low-cost test equipment and the new TDS7102 has a similar spec to the existing four-channel SDS7102 but with the added convenience of a touch-screen user interface.

The scope features 1GSa/s signal capturing on all four channels simultaneously with a 7.6MSa record length and 50,000 wfmSa/s capture rate. The touchscreen makes it more convenient to position and display waveforms and the scope retains control knobs and buttons for conventional operation.

100 MHz Touch-screen Scope from Owon - [Link]

1 Aug 2014

 

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Kepler is a multi-function device that monitors gas and carbon monoxide levels in your home, and delivers life-saving warnings. It features active gas and CO monitoring, early warning, a portable design, and a gesture-controlled kitchen timer in a sleek, modern body.

Kepler Team created Kepler because gas leaks are really dangerous, and they want to help prevent natural gas tragedies.

Kepler is an intelligent gas and carbon monoxide detector that features active monitoring, intelligent alarms, portable design and more

 

Kepler: Your Best Home Gas Detector - [Link]


31 Jul 2014

obr1473_1

Desoldering braid makes an invaluable service at development or rework.

Everyone who´s ever tried to suck off a solder from a solder pad by means of a solder absorbing braid (wick) will probably confirm, that this tool belongs to a “must have” equipment of every professional or amateur workplace. What´s the charm of a desoldering braid? Above all in the fact, that it´s able to absorb almost all the solder from a given place, thus the most of components can be loosened very easily. Hand (pneumatic) pump surely has its place, mainly when working with bigger components, but at comparison with a desoldering braid it´s similar like if we compared a broom with a vacuum cleaner.

A quality desoldering braid is usually able to absorb a solder so thoroughly, that only a microscopic layer of a solder will remain on a PCB – as if a board was new, unused. It is very advantageous even at a hand rework of SMT components, because it´s desirable the component to lay directly on a board – not askew in a thick solder layer causing a mechanical tension and able to cause even a malfunction of a component (often at SMT capacitors).

To reach a good functionality of a desoldering wick it should be made of a fine gauge copper wires (without oil residues end similar) and it must be treated with a high quality flux. The cheapest braids usually contain only a rosin-based flux, the better ones have a synthetic flux based, which produce less fumes.

A novelty in our portfolio is the novelty from company CRC Industries – braid SOLDABSORB. We keep Soldabsorb in a width of 1.5 and 2.5mm, packed in a blister in 2 pcs (the price is for 2 pcs). Soldabsorb represents a top-level in this segment and is made of a highly pure copper, fine gauge wires and contains a synthetic NO-CLEAN flux. It means, that the flux residues are non-conductive and non-corrosive and they can be left on a PCB. Very fine wires contribute to a high wicking (absorbing) ability.

The usage of the wick is very simple and is based in 4 steps:

● Place the Soldabsorb wick on the solder joint

● place the tip of the solder iron on the wick and hold shortly

● absorbed solder will change a color of a braid, showing that the process was successful

● when a joint contains a big amount of solder, it may be necessary to cut off a used end of a braid (2-5mm) and repeat the process

In praxis it approves well to adjust temperature of a soldering iron to a slightly higher, than we´d normally need for a given pad and eventually also to use a thicker soldering tip. In especially difficult cases (vias at ground planes of a PCB) it helps to put a small amount of a new solder on a soldering tip, which will decrease an absorbing ability of a braid, it will significantly improve a heat transfer from a tip through a braid to a PCB, thus improving and speeding up an absorption. Before another use of a braid, it´s sufficient to cut off only a very end of a braid (a few mm) fully sucked by a solder.
At the end it´s worth to mention, that after desoldering, it´s good to apply a small amount of solder on a soldering tip to protect it from oxidizing.

Detailed information will provide you the Soldabsorb datasheet.

Desolder professionally with NO-CLEAN flux wicks - [Link]

30 Jul 2014

NIsom

by elektor.com:

National Instruments has introduced an embedded System-on-module (SOM) development board with integrated Linux-based real-time operating system (RTOS).

Processing power in the 2” x 3” SOM comes from a Xilinx Zync-7020 all programmable SOC running a dual core ARM Cortex-A9 at 667 MHz. A built-in low power Artix-7 FPGA offers 160 single-ended I/Os and Its dedicated processor I/O include Gigabit Ethernet USB 2.0 host, USB 2.0 host/device, SDHC, RS232 and Tx/Rx. Power requirements of the SOM are typically 3 to 5 W.

Linux embedded SOM from NI - [Link]

21 Jul 2014

obr1384_1

With a height of only 4.5 mm are new terminal blocks able to connect LED modules and LED panels aesthetically and with a maximal reliability.

There are numerous SMT connectors on the market, which are suitable for usage on LED panels but even in other applications. That´s why it´s a logic question – why just Wago 2060?

Firstly it is because of a sophisticated construction of a terminal block with a globally known and million times proven screwless spring clamp CageClampS. This clamp has an optimum pressure on a wire ideally responding to a wire diameter, i.e. the thicker wire, the bigger pressure. Also thanks to this is the max. allowed current up to 9A (!). Further, it´s possible to install solid and ferruled wires even without tools. By a simple pressing to a terminal block (for example by a screwdriver), it´s possible to insert even fine stranded flexible leads and by similar way also to disengage. Features of a clamp don´t get worse neither after multiple disengaging of a connection and they remain stable even after a long period of operation.

From other positives it´s necessary to mention a “balcony” construction of an input portion, which makes installation of wires easier and faster. Sufficiently big flat area ensures a reliable application on assembly machines (pick-n-place). And finally – an aesthetic curved shape and a white/cream color cause, that connectors are inconspicuous and they don´t disturb on a PCB.

Terminal blocks are available in 1,2 and 3-pole version. You needn´t be in doubt that you missed development and you still don´t know a circuit operating on 1 pole :-) – naturally the single-pole version is intended for connecting of several modules into series. A big plus is also availability of interconnecting both-sided pins enabling easy and aesthetic creation of a row (string) of several modules.

Pin spacing is 4mm and there´s also available a version with 8mm pin spacing with operating voltage of up to 600V. Connector casing is made of an advanced material (glass fibre reinforced PPA) with a very wide range of operating temperatures.

Novelty is also a newer version – Wago 2061 with up to 12A max. current. Detailed information will provide you the Wago 2060 brochure.

Wago 2060 terminal blocks don’t overtop LEDs - [Link]

19 Jul 2014

obr1560_1

2x UT33 – with a manual and also automatic range selection are ideal “reserve” tool for every workplace.

Majority of us already probably has its own favorite multimeter. However, sometimes it happens, that we need to measure two parameters at once (for example voltage and current) and with one device it´s usually not possible… Even though it´s obvious, that it would be ideal to have two multimeters, you didn´t buy it, because you simply don´t want or can´t invest a considerable amount into another tool (maybe even a “top level” one.
That´s why we have for you a tip how to solve this dilemma. It is the multimeter Uni-Trend UT33 and right in two versions:

  • UT33A – automatic range selection, max. count 3999
  • UT33C – manual range selection, max. count 1999

Both tools feature an excellent price/ performance ratio. For the price of approx. 8-11 Euro they offer measurement of all common parameters, incl. AC (voltage, UT33A also current). UT33A also measures hFE of transistors, UT33C a temperature by a K probe. In many cases a higher resolution of UT33A (3999) can be very beneficial. Decent accuracy, solid construction and exchangeable measuring leads (not hard-wired to a device, as usually in this price-level) belong to another pluses of this series. Naturally, multimeters UT33 are also suitable as a “main” tool for beginning amateurs and students.

Further information will provide you the attached pictures and UT33A and UT33C user manuals.

Universal multimeters UT33A and UT33C for a special price - [Link]

16 Jul 2014

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PocketScan Leverages Dacuda’s Computer Vision and Robic Algorithm Technology to Deliver a Portable, Versatile, Software and Device Compatible Scanner

ZURICH, Switzerland – Dacuda, a Swiss startup specialized in image digitalization technology, today announced the launch ofPocketScan, the worlds first wireless scanner. The scanner leverages Dacuda’s patented computer vision and robotic algorithm technology to deliver a portable, versatile scanner that’s software and device compatible.

PocketScan provides a user-friendly experience that enables users to scan any format up to A2 fit, scanning items that don’t fit into a regular scanner. By simply moving PocketScan across a document, the content is assembled in real-time and transformed into editable text, tables or images. Tables are transformed into Excel-Sheets and Documents can be edited right away in the typical Word format. Additionally the scanner’s clever design works in any light condition and produces high quality images that are clear, consistent and bright. Read the rest of this entry »

15 Jul 2014

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IQRF meets demands of developers and smaller companies and brings possibility to develop wireless applications without programming and with minimum initial costs.

IQRF Alliance and an advantage of usage of Direct Peripheral Access – DPA and hardware profiles were introduced to you in our article IQRF Alliance brings wireless networks without programming. By entering to an IQRF Alliance the user gains access to a full DPA functionality, what greatly simplifies development and usage of IQRF wireless modules. DPA ensures compatibility of all products using this protocol and thanks to this it´s possible to add functionality of wireless communication into your product within few days or weeks.

However if you don´t suppose so fast deployment of your product and a 1000 Euro credit/ year is uselessly too expensive for you, now you have a possibility to use DPA and hardware profiles even without entry into the IQRF Alliance. The only thing you need is to develop with modules marked with „DC“ prefix (data controlled), i.e. for example DCTR-52 … Various IQRF modules are available in two versions – standard, as well as „DC“. If you´re a member of IQRF Alliance, standard modules are the right ones for you (without marking „DC“). If you´re not a member of an IQRF Alliance but despite this you wish to use significant simplification of development in a form of DPA and hardware profiles, then the “DC” modules are ideal for you. For a slightly higher price you have a chance to develop and use wireless communication and control with a maximum simplification. It is beneficial to use “DC” modules up to approx. 400 pcs/year. Then it´s already more advantageous to become a member of IQRF Alliance.

IQRF technology features, description of a new development environment IDE and OS, as well as advantages of IQRF Alliance membership advantages can be seen in a record from our webinar Wireless MESH networks without programming.

Creating of wireless MESH networks now even more effective - [Link]



 
 
 

 

 

 

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