Comperator - hvis du har lyst

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bliver varm.

bruger f.eks. LM339.











til 12Volt, i takt med stigende temperatur.

Har du lyst til at deltage i denne lille "leg"?
Eller har du en helt 2' ide?

Karl Erik.

Re: Comperator - hvis du har lyst
Karl Erik Christensen wrote:

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Pulsbredde moduleret styring med en NE555 kreds.


/Lars

Re: Comperator - hvis du har lyst
Den 08-03-2014 08:45, Lars Peter Larsen skrev:
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Hej Lars.







styre BD139'eren.




Karl Erik.


Re: Comperator - hvis du har lyst
Den 08-03-2014 11:04, Karl Erik Christensen skrev:

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falder. Hvis den falder til under 45C, afbryder LM339 styringen, indtil  
temperaturen igen stiger til 45C.



Karl Erik.


Re: Comperator - hvis du har lyst
Karl Erik Christensen skriver:
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Klaus
--  
 Modelbane Europas hjemmeside: http://www.modelbaneeuropa.dk
        Min egen hjemmeside: http://www.moppe.dk
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Re: Comperator - hvis du har lyst
Den 08-03-2014 15:23, Klaus D. Mikkelsen skrev:
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Hej Klaus.







lille skid?

Karl Erik.


Re: Comperator - hvis du har lyst

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plade
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2Volt.
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ved
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ra
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.
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NTC  
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t  
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er  
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men det skal nok virke hvad man end kalder det..:)
alex


Re: Comperator - hvis du har lyst
Den 07-03-2014 23:29, Karl Erik Christensen skrev:



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Har lavet nogle eksperimenter i LiveWire:


http://dmwebdesign.dk/karlerik/arduino/img/45.png


http://dmwebdesign.dk/karlerik/arduino/img/60.png


http://dmwebdesign.dk/karlerik/arduino/img/80.png






Hvor kan konstruktionen forbedres?

PFT
Karl Erik.


Re: Comperator - hvis du har lyst
Karl Erik Christensen skriver:
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Ved at du laver den om til en PWM styring og flytter transistoren ned



Klaus
--  
 Modelbane Europas hjemmeside: http://www.modelbaneeuropa.dk
        Min egen hjemmeside: http://www.moppe.dk
We've slightly trimmed the long signature. Click to see the full one.
Re: Comperator - hvis du har lyst
Den 08-03-2014 20:40, Klaus D. Mikkelsen skrev:
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Du har en pointe der.


10Ampere ved 13Volt.

Karl Erik.


Re: Comperator - hvis du har lyst


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http://www.edbpriser.dk/blaeserstyring-og-overvaagning/zalman-fan-mate-2-id-105458.aspx


--  

beslutning at undlade det.



Re: Comperator - hvis du har lyst
Den 08-03-2014 21:02, Leif Neland skrev:


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Det bliver loddekolben da ikke varm af :-)

Karl Erik.



Re: Comperator - hvis du har lyst





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Mvh. Uffe Ravn  



Re: Comperator - hvis du har lyst
Den 08-03-2014 23:55, Uffe Ravn skrev:
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http://dmwebdesign.dk/karlerik/arduino/img/45.png


elektrolyt kondensator parallelt med R6?


Karl Erik.


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