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Recent content by amberhawk

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    3 phase ,400 hertz,inverter design

    there was a 400Hz single phase design in wireless world 1999 feb. the basic concept is the same: convert the 28V dc a higher level dc, then invert this to, in you case, 3 phase sinewave 28V and 115V ac. see attachment
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    Power supply with backup unit (very simple UPS question)

    2 notes to the circuit that looks okay 1- the charger from mains will work okay, though diode D2 will prevent that the battery is 100% charged. Check if there is not a diode inside the charger, this would mean you can cancel D2. 2- you do not mention how the solar charger is working, but I...
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    How to convert an induction machine to be a SEIG?

    have a look at hxxp://www.vehiculevert.org/levehiculevert/index.php?lien=generateur it's about a gen-set to extend the range of an electric vehicle with values, history and comments
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    Autoregressive moving average (ARMA)

    autoregressive moving average tutorial check your pm found this one Structural Inference in Cointegrated Vector Autoregressive Models.pdf rgds amberhawk
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    Problem with installation Mathcad11

    wow, another way thx toad_th, i will surely try to 'install' it your way ?the need?.......if you follow all the bugs on the mathcad/adeptscience forum :x mmmmm rgds amberhawk
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    accessing fat32 under winnt - how?

    solution providied by 'dainis', fat32 works fine yes, i can confirm that with winNT4, but: if this fat32 section contains a lot of files, you might run into trouble. i'm not sure if this is a simple 'not enough pointers' problem or more. As i said it works fine, but sometimes it cannot open...
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    How to install and run Flexlm 7.1 on WinXP?

    flexlm sdk pdf the home <--> pro thought might be true i also heard 'stories' that you cannot install flexlm in the 'program files'-directory because of the space.....yes the space in between make sure the file path's are correct, make sure the license server is started......etc and ??is...
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    Problem with installation Mathcad11

    mathcad 11 asks to uninstall older versions, but i did not like that, so i put the old mathcad (2001i) on a different partition....no install; so i searched and deleted some entries in the registry....no install; so i put everything back and did an uninstall of 2001i and installed 11 without...
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    I need &quot;PWM-Circuit&quot; for controlling a &am

    have you considered a sepic design? anyway,check out the LinearTechnology's LTC1625 No RSENSE™ Current ModeSynchronous Step-DownSwitching Regulator In linear's DesignNote 233 a buck/boost convertor is explained with this chip. data sheet: hxxp://www.linear-tech.com/pdf/1625f.pdf designNote...

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