Recent content by soje

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    0-30 Vdc Stabilized Power Supply

    I've been reading thru all the posts (phew) to try and learn a few things. I've also tried to calculate the values of the resistor and zener using the info here: http://www.satcure-focus.com/tutor/page5.htm I measured the rectified (4 x MBR1060) output filtered with 4700uF loaded with R1...
  2. S

    0-30 Vdc Stabilized Power Supply

    I've attached a schematic, is this what you were thinking? I'm really not on top of the theory behind this circuit, but I've tried to sim it, and play around with the values. The cap after the darlington I believe is there to stabilize. Any idea how low you can go on this value? Thanks! soje...
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    0-30 Vdc Stabilized Power Supply

    Another thought (dangerous, I know :-)) Could I use a capacitance multiplier right after the rectifiers somewhat like this: http://sound.westhost.com/project15.htm and adjust the 12k resistor to lower the voltage into the psu circuit? Regards soje
  4. S

    0-30 Vdc Stabilized Power Supply

    That's what I was afraid of. Darn :-) Thanks for your reply. Regards soje
  5. S

    0-30 Vdc Stabilized Power Supply

    Hi. I'm gathering parts for this project, and I have a 2x15VAC 4A trafo at hand. Unloaded it delivers 34,4 VAC with the two sides in series. Will this be too much for the circuit? I've seen 30vac mentioned for the trafo, so I hope this isn't a stupid question  :-[ Regards soje
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