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3 Mar 2015

obr1667_p645

Thanks to a simple adapter, MEC Unimec switches can be used even in places, where their original height wouldn´t be sufficient.

We already know, that Switches MEC Unimec switch in up to eight ways and also that they´re available as momentary or alternate (latching). UNIMEC switches feature perhaps only one “disadvantage” – that on the same PCB no other higher components can be used (which would be higher than the switch). If you´re satisfied with the UNIMEC features, but despite that you cannot use them in your application right for their (low) height, we have for you a solution. It is based on usage of the „16270 extender“. In combination with any right-angle cap of the 16300 series and with a prolonged bezel 16324 (16325,16326) we gain by this combination a switch higher in 4.5 mm. This simple solution is also suitable for cases don´t have high components on a PCB but from any reason it´s advantageous, when some room will be left between a front panel and a PCB (for cooling, …)  Detailed information will provide you the MEC 16324-16326 brochure and the Unimec datasheet. Selected types are in stock and upon request we´re able to provide you any other components from MEC.


MEC extender – and you´re a level higher - [Link]

27 Feb 2015

BlueGecko

by elektor.com:

At the Embedded World conference held in Nuremberg, Germany this week Silicon Labs unveiled its Blue Gecko platform aimed squarely at Internet of Things applications. Silicon Labs have combined both their EFM32 Gecko MCU technology together with a 2.4GHz Bluetooth Low Energy transceiver (including a power amp and balun giving at least +10 dBm output power) on one die.

The 32-bit MCU inside the wireless SoC runs Bluetooth protocol stacks and scripting language developed by Bluegiga. Blue Gecko SoCs are based on ARM Cortex-M3 and M4 cores with 128 to 256 Kbyte flash and 16 to 32 Kbyte RAM. Silicon Labs are offering the complete Bluegiga Bluetooth Smart software stack for Blue Gecko modules and wireless SoCs. The stack implements the Bluetooth Smart protocol layers including the Attribute Protocol (ATT), Generic Attribute Profile (GATT), Generic Access Protocol (GAP) and security manager together with connection management.

Blue Gecko for the IOT - [Link]

25 Feb 2015

obr1664_1

AC/DC modules Traco TMPS 03 with dimensions of 1“x1“x0,6“ represent a top-class solution of power supply with minimum space requirement.

Power supplies with a high power density (W/cm3) are nowadays offered by several producers. However, perhaps the biggest challenge is a miniature power supply with a power of say a few Watts. It´s because even these smallest power supplies need practically the same components like the bigger sources need (just less powerful of course), but dimensions of these “weaker” components are usually only slightly smaller than powerful ones.
In this case the new TracoPower TMPS 03 series brings a literally new dimension. Dimensions 1×1 inch (25.4mm) and a height only 15.3mm enable usage of TMPS modules even in devices, where every cm3 is precious.

A big advantage is, that the TMPS module is capable of a short-time (<30s) repetitive operation delivering up to 30% higher power (while maintaining average total power of 3W). This can be valued for devices requiring higher start-up current, or at driving small motors and similar. TMPS easily meets requirements for a small standby power consumption, as it only needs 0,15 W in the no-load condition.
TMPS series module can be sourced from “any” AC mains line (85-264VAC) and even from a DC line (120-370VDC).


One “inch” will provide you 3 Watts - [Link]

22 Feb 2015

obr1663_uvod

Thanks to the enhanced functionality of the M95 FA module, this new version of the favorite GSM/GPRS module can be used for even more applications.

Quectel M95 communication module is already well-known among designers and we can say, that also very favorite. Its producer also knows this fact, that´s why Quectel decided to come to the market not with a new type, which might have other package, functionality,…. but a new version of M95, marked as M95FA. M95 FA maintains compatibility with the previous versions M95A (R1.0) and M95 EB, plus it naturally adds something new …Similarly like M95EB , even the „FA“ supports eCall and DSSS (Dual SIM single standby), but also supports digital audio, secure data transfer thanks to the SSL and other. M95 FA is based on the latest MTK chipset, ensuring long lifetime and availability. M95 gained various international certificates and meets all requirements in the GSM/GPRS bands.

To make the development easier, M95 FA is also available on the so called adaptor board – M95FA-TEA-03-STD,usable with the M10EVBKIT.
Detailed information can be found in the Quectel M95 flyer, Quectel 2014 catalogue and upon request we´ll send you complete detailed SW and HW documentation.


New version of the GSM/GPRS module Quectel M95 is here - [Link]


16 Feb 2015

obr1661_1

New series of Friwo FOX mains adapters meets the most stringent energy regulations already now and at the same time it´s more compact than its predecessors.

DoE 2016 is a known term naming stringent regulations established by DoE (department of energy USA) valid from year 2016. Among other things it brings a requirement for a standby power consumption of small adapters to be below 0.1W. In Europe we have here a limit of 0.5W for majority of small adapters, but even here can be expected toughening in the nearest years.

That´s why German company Friwo as a long-term long-term OEM producer of power supplies and adapters comes with a new line of mains adapters named “FOX”. Besides high efficiency, these power supplies are also extraordinarily compact. Already recent series MPP and GPP are very compact, but FOX is a “step further”, as also illustrated on attached picture. System of exchangeable primary and secondary adapters (connectors) enables to use the same power supply for various applications and in various countries.

Even the FOX series meets various international requirements and obtained many approvals. a medical version will be also available soon. The FOX series is a novelty – 12W types are available upon order. Gradually also other types – FOX 18, FOX 30 a FOX 6 will be produced.
FOX series, as the only type on the market meets criteria for IP42 protection – with selected primary adapters (connectors).


An adapter with standby power consumption below 0.1W? - [Link]

13 Feb 2015

obr1662_1

Whether it´s a prototype or a whole production batch of PCBs, Kontakt PCC cleaner will manage any residues after soldering.

Manual intervention to a PCB is usually always visible. With modern „No-clean“ fluxes it´s not that obvious as in the past. But still it doesn´t make resulting look of a PCB better. However, probably more important is the fact, that soldering residues are a potential risk, especially in humid environment – as they may cause a corrosion and leakage currents.

A PCB can be cleaned by various solvents (often also ecological ones – water based), but some residues are often simply too persistent … That´s why we need a solvent, which is relatively “as strong as possible, but safe for solder resist, marking and components with plastic packages at the same time.
Spray Kontakt PCC is developed specially for these purposes, what´s raised by a fact, that it´s equipped by application brush, helpful for a fast dissolving of thick layers. To maintain ESD safety, it´s necessary to moisten the brush by short pressing the valve before touching a PCB.

Kontakt PCC dissolves all types of fluxes without leaving residues. When cleaning thick layers, it´s necessary to wipe wet board with a paper tissue or similar. In result we gain perfectly clean PCBs resistant to leakage currents formation. Naturally, to obtain a long-term protection it´s advisable to use some of protective coatings like for example Plastik 70, Urethan 71 or Silisol 73 and other. Thanks to a strong effect, Kontakt PCC is also suitable for cleaning of various connectors, sockets, contacts, commutators of electric motors, …

Kontakt PCC is safe for majority of plastics except a few very sensitive types (e.g. polystyrene, polycarbonate). If a whitish coating appears after cleaning, usually it means, that the board was already treated by a protective coating (lacquer) before. In this case it´s possible to restore perfect look by application the Plastik 70.

Even your PCBs can look professionally - [Link]

11 Feb 2015

Fig_1(1)

The high definition (HD) mode increases the vertical resolution of the R&S RTO and R&S RTE oscilloscopes to up to 16 bits – a 256-fold improvement over 8-bit resolution. Waveforms are sharper and show signal details that would otherwise be masked by noise. Users benefit from even more precise analysis results.

High definition describes the capability of R&S RTO and R&S RTE oscilloscopes to work with applications for which a high vertical resolution is essential. This is especially the case when low-voltage components on a signal that also exhibits high-voltage components need to be analyzed in detail. One example is the characterization of switch mode power supplies. The voltages across the switching device must be determined during the off and on times within the same acquisition. Because the voltage variations during these switching cycles can be several hundred volts, a high resolution is essential for the precise measurement of small voltage components.

High definition oscilloscopes from Rohde & Schwarz: signal analysis with 16-bit vertical resolution - [Link]

5 Feb 2015

obr1659_3

Raspberry Pi in a form of so called “compute” module provides all good features of this well-known microcomputer and lets you choose which peripherals to use.

Idea of the Raspberry (RPI) compute module is in a fact, that there are applications, where easy applicability of this microcomputer might be advantageous, but its dimensions (including connectors in original version) don´t allow it to you. For these cases, the new Raspberry compute module is suitable, what´s literally only the “computing module” itself, in a substantially more flexible form factor. Raspberry Compute gives allows designer to freely use only required peripherals, at minimal space requirements (dimensions only 67.6x30mm). The size comparison is illustrated in attached picture. The module can be easily connected to a target application through a usual DDR2 SODIMM connector, for example Attend 121A-52A00.

The Compute module contains the same „guts“ as Raspberry Pi (BCM2835 processor and 512MB RAM) as well as 4GB eMMC Flash memory (equivalent to an SD card in RPI). With this module. it´s possible to deploy full functionality of the BCM2835 chip and even more GPIO pins and interfaces than in a standard version. Detailed information will provide you the RPI Compute module datasheet. Upon order, there´s available the development kit RPI COMPUTE DEV KIT (containing the module, IO board, cables for camera and display, 5V power source and a USB cable).


Full performance of Raspberry is also available in a miniature form - [Link]

3 Feb 2015

obr1655_p611

If you have a lightning conductor on your building, it doesn´t mean your devices are on a safe side. We´ll tell you why …

Overvoltages in mains line are a quite frequent matter. Who doesn´t have a lightning conductor usually knows, that he undergoes some risk. However, vast majority of new buildings is equipped with a lightning conductor and its own earthing, what can make a feeling, that “we´re protected”. Of course, a quality lightning conductor and earthing are basic prerequisites of a reliable electro-installation, but it´s only the first step. The problem is that:1) overvoltage (surge) can arrive anytime (and it comes) by a mains line from outside. Sources of surges in mains line are (distant) flashes and also various motors, switched inductive loads and other.

2) a discharge at lightning hit is able to induce voltage even to distant conductors and also to significantly increase voltage on a PE(+N) conductor. Current in orders of kA flowing to earth creates up to kV voltages (R*I) even on high quality earthing. This voltages will get through an equipotential point in a distribution box to practically all PE+N conductors (in the most common TN-C-S network). In praxis it means, that if you don´t have a suitable surge protection installed (SPD), then all mains sockets connected to given distribution box will be exposed to this high voltage. A portion of a discharge usually flows also through incoming PE conductor (from a building to a mains line) and also through all equipotentially conducted media (water, gas, heating, air conditioning, …). This also contributes spreading a high voltage into various places in a building.

Read the rest of this entry »

2 Feb 2015

Pi_II_iso_ORIG

The Raspberry Pi 2 – Model B – ARMv7 with 1G RAM is here!

The Raspberry Pi 2 delivers 6 times the processing capacity of previous models. This second generation Raspberry Pi has an upgraded Broadcom BCM2836 processor, which is a powerful ARM Cortex-A7 based quad-core processor that runs at 900MHz. The board also features an increase in memory capacity to 1Gbyte.

Broadcom BCM2836 SoC
Quad-core ARM Cortex-A7
900 MHz
Dual Core VideoCore IV® Multimedia Co-Processor
Provides Open GL ES 2.0, hardware-accelerated OpenVG, and 1080p30 H.264 high-profile decode
Capable of 1Gpixel/s, 1.5Gtexel/s or 24GFLOPs with texture filtering and DMA infrastructure
1GB LPDDR2
Boots from Micro SD card, running a version of the Linux operating system 85 x 56 x 17mm and is possible to run Windows 10
Micro USB socket 5V, 2A

Raspberry Pi 2 – Model B – ARMv7 with 1G RAM is here - [Link]



 
 
 

 

 

 

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