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DIY & Tutorials
DIY For Audio
I want to make some PCBs
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<blockquote data-quote="tangmonster" data-source="post: 96690" data-attributes="member: 1581"><p>There is a lot of math to the size of cap you should use. I agree about the 10uF on the pot by the way. on cap sizes. IF you are lazy like i am you can download an AWESOME program called psud2.</p><p></p><p></p><p>Check this example: I took a 15vAC transformer that is rated for 1 amp and added a 2200uF capacitor with a contant current drawn of 300ma. You can clearly see that the </p><p>output voltage will vary between 19 to just over 20V . you can efectively regualate around 17V max at 300ma with this setup. If your current drawn is higher this picture changes. Long story short , if your circtui is for an opamp split rail supply 2200uf is much MORE than enough. Get psud2 , experiment with the capacitor internal resistances and so on. Very cool program.</p><p></p><p>http://www.duncanamps.com/psud2/index.html</p><p></p><p><img src="http://img.photobucket.com/albums/v287/tangmonster/psud2sim.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="tangmonster, post: 96690, member: 1581"] There is a lot of math to the size of cap you should use. I agree about the 10uF on the pot by the way. on cap sizes. IF you are lazy like i am you can download an AWESOME program called psud2. Check this example: I took a 15vAC transformer that is rated for 1 amp and added a 2200uF capacitor with a contant current drawn of 300ma. You can clearly see that the output voltage will vary between 19 to just over 20V . you can efectively regualate around 17V max at 300ma with this setup. If your current drawn is higher this picture changes. Long story short , if your circtui is for an opamp split rail supply 2200uf is much MORE than enough. Get psud2 , experiment with the capacitor internal resistances and so on. Very cool program. http://www.duncanamps.com/psud2/index.html [IMG]http://img.photobucket.com/albums/v287/tangmonster/psud2sim.jpg[/IMG] [/QUOTE]
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DIY & Tutorials
DIY For Audio
I want to make some PCBs
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