Developing a Regulated Dual Rail Power Supply For FirstWatt Amps

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#167
2 picoDumbs said:
Already simulated many designs.
Haven't decided what exact testing I will do yet. That could be still a few months away.
There's still the issue of purchasing 4m of copper bar.
Not sure I want ti purchase that much when I won't need more than 0.5M for the rest of my life.
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#170
Something like this should do the trick, seems quite overkill but perhaps not for our OCD friend.

1/2” X 1.25” X 12” Copper Flat Bar Stock | eBay

s-l400.jpg
 
#171
For 0V connection the minimum width I need is 55mm (big capacitors) but will probably go with 80mm wide.
I found some scrap copper that will do the job temporarily just to get the ball rolling here.
I hope to drill out 5mm holes tomorrow.
Decided to go with CCRC to halve the amount of current sinking on the first capacitor.
 
#172
You could consider moving some or all of the series resistance into the primary circuit*, instead of in the secondary circuit after the diodes. Softer start, less Ipeak stress upon the diodes and capacitors, lower output impedance, what's not to like?

*resistance scaled by the appropriate ratio to account for the fact that Iprimary = (Vsec/Vprim)*Isecondary , neglecting transformer losses
 
#180
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