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2 Oct 2014

MAX6126

Of the many low-dropout (LDO) regulators used to regulate voltage in electronic systems, some are specifically designed for low-noise operation. The MAX8887 low-noise LDO, for example, achieves a noise voltage of only 42µVRMS over the 10Hz to 100kHz range. Applications such as the ultra-low-noise oscillators required in instrumentation, however, require even lower noise. To fulfill that requirement, this project features the MAX6126 and a combination of low-noise components and filtering that achieves an output noise of only 6nV/√Hz at 1kHz

Ultra-Low-Noise LDO - [Link]

2 Oct 2014

285972-tmw1010_ideas_fig1_400px

by Naomi Price & Martin Rowe @ edn.com:

USB data-acquisition modules offer good value and ease of use, which makes them an attractive choice for manufacturing test. But before you use the modules in a manufacturing test system, you need to take steps to protect them. During manufacturing test of circuit boards or subassemblies, a defect in an assembly may result in a condition that damages a data-acquisition module.

Test Ideas: Protect USB measurement circuits - [Link]

2 Oct 2014

blackoutbuddyh2o

by By Ben Coxworth @ gizmag.com:

It’s the big paradox of emergency-use flashlights … by the time you eventually need to use them, their batteries have died. Eton’s new Blackout Buddy H2O, however, will reportedly still work after sitting for up to 10 years. And to turn it on, you just add water.

This latest member of the Blackout Buddy line has a magnesium-oxide battery, which starts delivering power to the light’s three LEDs when exposed to H2O. To initially fire it up, you dip it into a small cup of water, or pour water into its battery compartment. After that, it will keep going continuously for up to 72 hours – if it starts to dim within that time, you simply add more water.

Blackout Buddy H2O runs on water to provide emergency lighting - [Link]

1 Oct 2014

quickchangem

by Phys.org:

Faster, smaller, greener computers, capable of processing information up to 1,000 times faster than currently available models, could be made possible by replacing silicon with materials that can switch back and forth between different electrical states.

The present size and speed limitations of computer processors and memory could be overcome by replacing silicon with ‘phase-change materials’ (PCMs), which are capable of reversibly switching between two structural phases with different electrical states – one crystalline and conducting and the other glassy and insulating – in billionths of a second.

Quick-change materials break the silicon speed limit for computers - [Link]


1 Oct 2014

rcj_IBM_Graphene_Silicon_Wafer

nextgenlog.blogspot.com:

IBM has not only perfected a method of growing wafer scale graphene as a potential material for the post-silicon era, but has found a way to use it today to dramatically cut the cost of GaN LEDs.

IBM Grows Wafer Scale Graphene – [Link]

1 Oct 2014

MAX6373

The MAX6369-74 series watchdog-only supervisors are available in tiny SOT23-8 packages and have selectable watchdog timeout periods (1.7ms to 104s), start-up delays (1.7ms to 104s) and output pulse widths (1.7ms and 170ms) depending on the part selected and the state of 3 pins (SEL0, SEL1, SEL2). These parts have several advantages over the historical “555” solutions. As well as the lower supply current (20µA max instead of 120µA max at 5V supply) the overall solution takes much less board area with the smaller package and the absence of large timing resistors and capacitors.

MAX6369 Series Watchdog Timers – [Link]

1 Oct 2014

Nixie, a tiny wearable quadrocopter camera on a wrist band:

Team Nixie is developing the first wearable drone camera, which can be worn around your wrist. The team will be presenting their prototype for the Intel Make It Wearable Challenge Finale on November 3, 2014 in San Francisco.

[via]

Wearable quadrocopter - [Link]

1 Oct 2014

15181617420_19ac5491cc

Ioannis Kedros writes:

It’s been a long time since I’ve post a new hobby project of mine! I decided that is time to upload a new one! Like my Sensor Stick module this project will be about sensors as well.

You can find multiple modules out there with various sensing ICs that almost all of them look exactly the same! They are ugly and without properly markings on their surface.

For example, some of those don’t have the input voltage range on the PCB or the pin out names or even the sensor address (in the case of a digital I2C sensors for example). In order to find that info, you have to download files, unzip them, look the schematics of the module then the datasheet of the sensor etc. A time consuming method especially for a quick and dirty prototype!

embeddedday.com – Sensor Modules - [Link]

1 Oct 2014

obr1595_1

Voltcraft sets of measuring leads provide several reasons why to choose right them.

Maybe we even don´t realize in a common praxis, how important role is played by measuring leads of a measuring device, the most often multimeter. Firstly, they´re “responsible” for a good transfer of a signal to a measuring device and at the same time they perform an important safety function, especially at measuring of higher voltages or on devices, where such a voltage can appear (unexpectedly).

Testing leads are often exposed to a considerable mechanical stress at measuring. As for the safety, especially older or damaged leads need to be replaced soon and better not to risk a possible injury. Older low quality measuring lead often shows small defects and it´s not that rare, when a broken thin wire (one of many which create a stranded wire) penetrates insulation from inside and stays hidden close to an outer surface. Naturally, in this case we can forget the declared properties of such lead.

Measuring/ testing leads Voltcraft are a novelty in our offer:

MS-4 – set of safety measuring leads 10A/CATIII/1000V. Leads have a quality classic tip, usable even for a banana F socket. Also included are quality crocodile clamps with a thick insulation.

MS-4N – set of safety measuring leads with an insulation from extra flexible silicone rubber, 10A/ CATIV/ 600V. Easy and safe removing of tips covers thanks to a click mechanism. Indication lug on a red lead for an easy orientation even in twilight. Extraordinary high flexibility makes the measurement especially pleasant and they´re highly resistant to hot surfaces at the same time.

MS-7 – set of safety measuring leads 20A/CATIV/600V. A set with the highest current handling capacity from these three sets.

All three sets conform to EN61010-031:2008 safety standard and all of them have removable top covers (as illustrated on attached pictures) for comfortable measuring in tiny places (for example on a PCB). Comparison and basic features of these measuring cords can be found in an attached table.

Voltcraft – above standard quality even in measuring leads - [Link]

30 Sep 2014

LM43600

by ti.com:

The LM43600 SIMPLE SWITCHER® regulator is an easy to use synchronous step-down DC-DC converter capable of driving up to 0.5 A of load current from an input voltage ranging from 3.5 V to 36 V (42 V transient). The LM43600 provides exceptional efficiency, output accuracy and drop-out voltage in a very small solution size. An extended family is available in 1 A, 2 A and 3 A load current options in pin-to-pin compatible packages.

LM43600 – SIMPLE SWITCHER® 3.5V to 36V, 500mA Synchronous Step-Down Voltage Converter - [Link]



 
 
 

 

 

 

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