Tag Archives: Switch

Even you switch ecologically?

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More exactly, we talk about switching-off a device. Marquardt 1550 Eco Switch enables this extraordinarily easily.

Do you know a situation, when a seemingly usual thing is fact not that usual… Whether it´s a car with a hybrid drive or a lot of devices which we meet every day – usually in every segment can be found something “inconspicuous” but in fact unusual and exquisite. This is exactly the case of the 1550 Eco Switch series.At the first sight – a usual rocker switch of this series is able to switch off a device in a pre-defined time or it can be switched off remotely – by a pulse (4A/250V, 10ms). Both cases result in a physical contacts disconnection, what´s advantageous from a safety point of view (total galvanic isolation and overvoltage protection) as well as from a zero power consumption point of view. In case of a remote-off version a given switch can be controlled also by the controlled device itself (which is powered through this switch). In this case it results to self “cut-off” of a device and it can be switched on again only physically by an operator. A typical example of use can be a safety function of temperature monitoring inside a device which is able to switch off itself in case of a fault.

1550 Eco Switch series can be used not only for power supply line. The contacts reliably switching even small DC voltages enable usage also for transition of various control signals and similar.

Detailed information will provide you the Marquardt 1550 Eco Switch datasheet and Marquardt 1550 versions.


Even you switch ecologically? – [Link]

High-temperature versions of MEC switches now for the price of standard versions

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No need to consider temperature resistance of Multimec 3 and Unimec switches anymore.

Company MEC, Dutch producer of top-class push-button switches Multimec, Unimec and others comes with good news for developers and producers of electronics.

Well-known reliable push-buttons were in majority of cases available in so called standard version (L6, -40…+115°C) and in a high-temperature version (H9, -40…+160°C). From now on, all types will be gradually available only in a „high temperature“ version, which can be identified by „H9“marking in suffix. This applies to Multimec 3 and Unimec series (series Multimec 5 is already from the beginning only available in a high-temperature version).

The main „good news“ is, that these high-temperature types will be available for practically identical prices like standard types. That´s why, even in applications where you wouldn´t necessarily need that high thermal resistance, you can use this high-temp version and profit from unchanged price and potentially wider possibilities of usage of your product.

The most suitable type for you application can be easily found in the MEC catalogue (11MB).


High-temperature versions of MEC switches now for the price of standard versions – [Link]

World’s first light-activated, molecule-sized switch gets turned on

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by Colin Jeffrey @ gizmag.com:

In the pursuit of ever-shrinking circuitry for nanotechnology electronics, increasingly smaller devices and components are being developed. Now researchers at the University of Konstanz and the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) claim to have micro-miniaturized the humble electrical switch all the way down to molecule size and proven its operation for the very first time. Unable to flick such a tiny switch mechanically, however, the researchers instead used light to turn it on.

World’s first light-activated, molecule-sized switch gets turned on – [Link]

ESP8266 WIFI Web Power Switch for MAINS

 

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by esp8266-projects.com:

Theory of operation remain the same so please take a look at the previous Article about MAINS Power Switch for deeper explanations.

I don’t know if this it’s the smallest MAINS Power Switch with integrated WIFI and direct Web interface access but if is not, it’s definitely closer to be at only around 25x50mm :)

ESP8266 WIFI Web Power Switch for MAINS – [Link]

Use ESP8266 module as a wireless switcher

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Razvan Dubau over at Extragsm posted a how-to on using an ESP8266 module as a wireless switcher:

A custom firmware to transform the ESP8266 wifi module into a wifi http based switcher GPIO02 is used as an output pin. You can connect a led or a relay and control it by a button added to GPIO00. Also the firmware provides a web interface and a simple API that will controll the GPIO02 state.

Use ESP8266 module as a wireless switcher – [Link]

MEC extender – and you’re a level higher

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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]

Peregrine Semiconductor Ships Industry’s First True DC Switch

42020-Switch-Press_WEB

The UltraCMOS® PE42020 Integrates RF, Digital and Analog Functions in a Monolithic Die to Preserve Signal Integrity From DC to 8 GHz

Peregrine Semiconductor announces the availability of the UltraCMOS® PE42020, the industry’s first and only RF integrated switch to operate at true DC, zero Hz. This True DC RF switch features high power handling and maintains excellent RF performance and linearity from DC through 8000 MHz. A reliable alternative to problematic mechanical relays and micro-electro-mechanical systems (MEMS), the PE42020 is ideal for test-and-measurement (T&M) and automated-test-equipment (ATE) applications.

“For the first time, an integrated RF switch can operate at DC and truly cover the signal over the entire frequency spectrum,” says Kinana Hussain, Peregrine’s senior manager of marketing. “Until now, only mechanical relays and MEMS switches allowed DC pass through, and these products are plagued with reliability issues and lack of integration. Today’s release of the UltraCMOS PE42020 is another example of Peregrine solving the RF industry’s biggest challenges.”

Peregrine Semiconductor Ships Industry’s First True DC Switch – [Link]

Experimenter Prototyping Board for easy circuit build

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Raj over embedded-lab.com has build a prototyping board that facilitates the building of simple circuits. It includes a regulated power supply for both 3.3V and 5V, four output LEDs, four input switches, a buzzer, a potentiometer and an onboard breadboard. Using this board you can fast prototype your next project.

Experimenter Prototyping Board for easy circuit build – [Link]

Tiny Power Switch good for 7Amps

mic95410pr

by elektor.com:

With a package outline of just 1.2 x 2mm the Micrel MIC95410 is able to switch loads of 7A in the voltage range of 0.5 to 5.5 V. The switch provides high-side switching and the company anticipates it will find applications in the field of computing generally and in ultra-dense embedded computer boards where high-current, low-voltage rails from sub-1V to 5.5V are required to be sectioned. The integrated 6.6 mΩ RDS(ON) N-channel MOSFET ensures low voltage drop and low power dissipation while delivering up to 7A of load current.

A separate 2.7 to 9 V supply is necessary to power the chip’s logic. The chip also includes a TTL-logic level control input (CTL); a high level enables the switch and a logic low level disables the switch and discharges the output. The OFF-state current from the bias supply (VS) and the power switch OFF-state leakage current (IOFF) are both below 1μA. A capacitor can be connected at the GC input to provide switch slew-rate limiting to help reduce inrush current to the input supply voltage.

Tiny Power Switch good for 7Amps – [Link]

Internet Controlled Mains Switcher

 

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by alistair_uk @ instructables.com:

This is a very low cost and basic from of home automation allowing you to turn on and off lights and other devices using your computer or mobile phone.

It has been built and tested use using UK power plugs, but the same protocol is used on many budget remote power switchers from around the world.

Internet Controlled Mains Switcher – [Link]