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DIY For Audio
Split Supply for active crossover filter
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<blockquote data-quote="Murray" data-source="post: 1021212" data-attributes="member: 3345"><p>The system uses practically no power. Feeding separate + and - 5V I measure 20mA, So form one source, liner reg, make it 40mA. With losses, say 60. @ 12V that makes it 0.72W. However, that assumes a high impedance load. But I suspect 1AV should be enough. Ideally a dedicated winding or a dedicated transformer. The galvanic isolation ensures ground looks are totally eliminated.</p><p></p><p>Here is the new layout.</p><p></p><p><a href="https://postimages.org/" target="_blank"><img src="https://i.postimg.cc/Kvt3TLSR/psu2.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p></blockquote><p></p>
[QUOTE="Murray, post: 1021212, member: 3345"] The system uses practically no power. Feeding separate + and - 5V I measure 20mA, So form one source, liner reg, make it 40mA. With losses, say 60. @ 12V that makes it 0.72W. However, that assumes a high impedance load. But I suspect 1AV should be enough. Ideally a dedicated winding or a dedicated transformer. The galvanic isolation ensures ground looks are totally eliminated. Here is the new layout. [url=https://postimages.org/][IMG]https://i.postimg.cc/Kvt3TLSR/psu2.png[/IMG][/url] [/QUOTE]
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DIY & Tutorials
DIY For Audio
Split Supply for active crossover filter
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