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Ausgangsspannung der PSU:
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Richtig dimensionieren weil:
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zu hoch: spannung wackelt, unruhe am verstärker
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zu niedrig: PSU verbrennt unnötig Leistung, Verstärker hat weniger Headroom
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Verfügbare Spannung des Trafo: 
\begin_inset Formula $V_{\sim}\cdot\sqrt{2}=42.42V$
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Spannungsabfälle unter Volllast (5A):
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2*0.8V Gleichrichterdioden
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\begin_layout Itemize
2V LM317
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0.7V Basis des Leistungstransistors
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\begin_layout Itemize
2.84V Hub am Kondensator (
\begin_inset Formula $5A\cdot10ms/17.6mF$
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)
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Innenwiderstand des Trafos, sagen wir 15% (6.3V)
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Sicherheitsabstand, sagen wir 2V
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=> 27V
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