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Old 8th May 2002, 02:40 PM   #1
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Default Parallel Devices in Zen Variations Part 3

In Zen Variations Part 3 Figure 7
can i use this Parallel Devices on Aleph 2?

thank?
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Old 8th May 2002, 03:05 PM   #2
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There are more efficient ways to build a regulator but, yes, it will do the job. Watch your heat dissipation and add more pass transistors if necessary.

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Old 9th May 2002, 08:33 PM   #3
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I suggest the modulation scheme in the article to
boost the efficiency to its theoretical highest value.
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Old 10th May 2002, 01:29 AM   #4
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sorry, iŽm not able to understand the main purpose of the regulated power supply in variaton 3. In the first circuit i heared a little bit noise (50Hz) because only the 10.000myF cap was as "Siebkondensator" to make the voltage plain. In circuit variation 2 i hear nothing of 50Hz AC, i think the "variable constant current source" formed out of the second Mosfet with the 0.33r resistor and the npn, takes away the rest DC. it should be fast enough for this (?). If i use the regulated voltage i give away 7Volt minimum, maybe only 6 at peaks. If there is no sound advantage than less 50Hz DC , is there any need for the regulator? If i have this abaut 7 Volt more direct in the amp, isnŽt there more power? I understand the need for a regulator in a preamp, so i build one in BoZ, but if thereŽs nothing against iŽll leave the variation 2 as it is, and wait for var. 4.
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Old 10th May 2002, 03:25 AM   #5
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Default active supply regulation of aleph

i think Zen Variations Part 3 Figure 7 is ok for aleph.
but i want to know if figure 4(active supply regulation) is ok for alpeh. if this figure needs some change., how to change figure 4 to suit alpeh .
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