Fortron Sparkle ZEN

[W1zzard]

Today we have a very special PSU on the test bench - it is completely passive. Fortron trusts their design so much that they say a backup fan is not needed.
I was surprised to see the Fortron Sparkle ZEN power our demanding test platform without any load problems. While the electrical noises were definitely annoying, they are only noticable on higher power systems.

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[jaun]

The voltage regulation and ripple measurements are not that great, is there a correlation between efficiency and vlotage line linearity? By that I mean, is it hard to get clean power and have high efficiency or is it just a materials cost factor (and that not many care about linear lines)?