Monday, November 22, 2010

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Trail Marathon Bike Tour El Hierro

Last November 13 was held on the island's Meridian 1 ª Bike Marathon Iron . In representation of AORTA Fernando de Armas was presented which after doing well in FUDENA moved to meet locals and gain victory in the general classification.
Representing the club ran Arista Elena Marrero being the only female participant and thus winning the women classification.

Friday, November 19, 2010

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Over

Here we leave a link so you can see the photos in the race de Fer, in the you can see the rest of the components of Arista-Scania New Holland, in the last edition of the Gore Tex Transalpine Run.

Thursday, November 18, 2010

Cant See My Face On Oovoo

Creating a LM386 Audio Amplifier in Multisim

a few days ago followed this blog Multisim told me he was looking to simulate the component LM386 audio amplifiers. This component is not included in the Multisim database, but if we can create SPICE model using the Component Wizard . I did a search on the Web and to locate a SPICE model for the LM386, it is noteworthy that the model is not guaranteed, but early tests have been successful. So then I share a tutorial on how to create this custom component in Multisim. If you want to see a more basic tutorial on creating components visit the article Creating Components in Multisim Basic.

The LM386 is a power amplifier for use in low voltage amplifiers typically used in AM-FM radio. The spec sheet can be downloaded here . SPICE model for the LM386 I found this discussion forum . Only copy the model to notepad and saved it with a. Txt. The following figure shows an excerpt of this model:

multisim

With the LM386 spec sheet and we now SPICE model Multisim in English and select the menu Tools ú >> Components Wizard. In the first step we entered the overview of the component:

multisim

In step 2 we add the information ng footprint (footprint) for the component, this is necessary in case you later need to transfer the design to Ultiboard to create the PCB. For this, click on the button Select a trace. According to the spec sheet this component is available in several encapsulated in this case I selected the print M08A:

multisim


multisim

can now edit the symbol, you click on the Edit button to open the Symbol Editor in Multisim is very easy to use. I made a simple symbol:

multisim

Step 4. Assign terminal type (bidirectional, input, etc) to each pin:

multisim

We mapped the symbol terminals with the terminals of the mark:

multisim

Very important copy and paste the contents of the SPICE model for the LM386:

multisim

The next step is very critical and this is where most of the time they make mistakes. Here we map the nodes of the model with the terminal symbol. This information is usually at the beginning of the SPICE model. If we open the text file containing the model for the LM386 going to see that the configuration is one to one, for example, node 1 est mapped to the terminal to g1 (Gain 1), node 2 with the terminal inn (-Input), etc. There is not always the ideal case, so you should be cautious:

multisim

list, save the component in the User Database . We can even create a new Family :

multisim

To test I set up a typical application contained in the specification sheet. Is an amplifier with a gain of 20:

multisim

1mVp For an input of 500 Hz we have the following output:

multisim

I hope you have enjoyed this tutorial and find it helpful.

Greetings! Fernando

Monday, November 8, 2010

Porcelaine Mark Two Arrows

FUDENA II Gore Tex

Once back in this intense weekend in Fuerteventura On balance:
; The four members of ORT Arista completed the test. Fernando de Armas and Fernando Gonzalez in the race, improved their personal bests. For his part, Sergio Jover Chencho Yanes and participated in "Road", enjoying a massive two-day test duration. The story put Sergio bike, with a serious fault in the first few miles, he was forced to make a mechanic for most of the first day and running with a borrowed bike on the second day. Here some pictures
before departure:
Chencho

Sergio Jover


Ferko
Fer

As usual, the team traveled to Fuerteventura and only moved there other members of the Club Deportivo Arista and friends. Participated in the trial Fernando Lomba, Elena Marrero, Vicki (the race), Teresa González, Raquel Medina, Javi, Chele and Alberto (en route). As a companion, Star, Veronica, John, Chenchin, Dani González (which opens in this type of travel .... Heh, heh, heh ..) and Carlos Gonzalez.
Tere and Rachel

Elena and Vicki

party brokers

Chele, Alberto and Fernando
Part of encouraging support team at the start
Javi, Tito and Jorge










the same weekend was held FUDENA the Second Half Marathon Dunes Fuerteventura and was attended by Carlos Gonzalez and Estrella del Castillo, members of Club Deportivo Arista.
The race was held on a circuit of about 20 kilometers in the natural park of Dunas de Corralejo.


rising star in the middle of a dune



Star and Carlos in the goal. Sandy brought as "to make"