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Techtalk • View topic - POS Netzteil mit 1,8A

POS Netzteil mit 1,8A

Das Labor ist der richtige Ort um spezielle Projekte inkl. Fehlersuche zu diskutieren.

Moderator: kubi

POS Netzteil mit 1,8A

Postby king-rb » Fri Aug 27, 2010 3:38 pm

habe gerade nen relais switcher gebastelt und feststellen müssen das volkers netzteil leider nicht mehr ausreicht. zu spitzenzeiten können da schon ma 1,8A bei 12V benötigt werden. 56 relais + leds.
hat da jemand nen schaltplan? ich brauche zudem +-18V bei ca. 50mA ;-) aber da kann ich ja dann volkers netzteil nehmen.
noch ein problem: eigentlich ist kein platz da aber im schlimmsten fall mach ichs extern. da wäre natürlcih eine europlatine genial.
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Postby [silent:arts] » Fri Aug 27, 2010 4:07 pm

probier einfach mal einen LM350 anstelle des LM317.
für Relais & LEDs ist die Qualität ja nicht so wild, da solltest Du bei den anderen Bauteilen nichts ändern müssen.
Falls doch wird mich sicher Harpo korrigieren :wink:
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Postby king-rb » Fri Aug 27, 2010 4:27 pm

supergut! das wird gleich ausgetestet!
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Postby king-rb » Fri Aug 27, 2010 4:29 pm

addiert sich eigentlich der strom beider sekundärspannungen? habe da einen 50VA trafo also 2x sekundär je 1,38A ist das dann genug?
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Postby [silent:arts] » Fri Aug 27, 2010 4:30 pm

ausreichend Kühlung nicht vergessen
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Postby [silent:arts] » Fri Aug 27, 2010 4:45 pm

[silent:arts]
 
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Postby king-rb » Fri Aug 27, 2010 5:26 pm

king-rb
 
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Postby [silent:arts] » Fri Aug 27, 2010 9:02 pm

[silent:arts]
 
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Postby king-rb » Fri Aug 27, 2010 9:21 pm

king-rb
 
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Postby Harpo » Fri Aug 27, 2010 11:10 pm

mische lauter - Ohren wachsen nach
Ist mir Scheißegal wer dein Vater ist. Solange ich am Angeln bin, gehst Du hier nicht übers Wasser !
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Postby [silent:arts] » Sat Aug 28, 2010 7:18 am

[silent:arts]
 
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Postby king-rb » Sat Aug 28, 2010 3:13 pm

king-rb
 
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