Re: “Final” Draft of Processing inclusion PEP …

rektide — Wed, 28 May 2008 17:22:27 -0000

open link in new window makes baby jesus cry

Re: Survey: Incandescence vs Fluorescence ?

rektide — Mon, 08 Jan 2007 16:09:27 -0000

THEY STOPPED PRODUCING DIMMING CFLs.

f**k that noise. so god damned f**king annoying.

color reproduction has gotten much better, but cfl's still emit in only a couple of very narrow spectrums. incandescents emit across much broader swarths of spectrum. i'll gladly take any test, so long as i can choose what i'm looking at under the light, and tell you to shove your "cant tell the difference" where it belongs.

Re: Big Steps In Building: Change Our Wiring to 12 Volt DC

rektide — Tue, 11 Sep 2007 16:09:31 -0000

i nearly jumped in with the same punches as everyone else, thankfully i decided to read the comments first.

my contribution is that we've simply opted for the wrong AC power. rectifying single (or 180 opposing) phase AC power is a loosing battle, it requires huge arsed caps to maintain voltage differential during the cycle's zero crossing phases.

there are two solutions:

the first is increasing switching frequency, which reduces the length where your ac doesnt have much differential.

the second is using multiphase power, typically three phase, where when one line is going towards 0v the following phase is ascending towards its maximum. some nasty transitional draw issues aside (rectifier hand off is much more abrupt when your 70v and dropping line goes no-load and the follower 70v and rising line goes from no-load to on-line), you end up with something much more closely resembling DC power without any capacitors at all. although it requires four wires of power, the three source lines can have considerably reduced cross sectionals.

i've always wanted 3 phase so i could build massive amplifier for dirt cheap. audio amps are 2 parts amplifier and 7 parts power supply, since single phase power blows chunks for making dc power.

the first solution would do the most towards getting rid of wall warts, the second solution would do the most for any high draw power device.

Disqus - Latest Comments for rektide

Re: “Final” Draft of Processing inclusion PEP …

Re: Survey: Incandescence vs Fluorescence ?

Re: Big Steps In Building: Change Our Wiring to 12 Volt DC