[sdiy] zener question

[Scott Gravenhorst]

True, but what of more "off world" uses?  It _is_ a nonlinear
device and nonlinear devices can change things when placed
just so.  JMO.

Martin Czech <czech at Micronas.Com> wrote:
>Apart from reference usage and ESD protection I can see no
>applications for zeners today (ok, some triggering circuits
>for scr or something like that, some high voltage stuff, too).
>
>Bandgap references have way better noise specs, zeners tend 
>to be quite noisy. Power consumption will be high,
>load regulation crappy, so why bother with an old fashioned zener
>supply??
>
>
>m.c.
>
>:::X-Authentication-Warning: node12b53.a2000.nl: majordomo set sender to 
>owner-synth-diy at node12b53.a2000.nl using -f
>:::From: Michael Buchstaller <buchi at takeonetech.de>
>:::To: synth-diy at node12b53.a2000.nl
>:::Subject: Re: [sdiy] zener question
>:::Date: Mon, 05 Feb 2001 17:30:58 +0100
>:::Content-Transfer-Encoding: 8bit
>:::
>:::>If you need something well regulated with a fair amount of current (over
>:::>50mA or so), you should go to an adjustable voltage regulator - like the
>:::>uA723, or LM317 (positive reg) and LM337 (negative reg).  With heat
>:::>sinks you can get up to 1 amp out of these, 100mA with no heat sink.
>:::
>:::personally, i would always go the voltage regulator route - 7809/7909
>:::are extremely cheap and will do the trick without any worrying about
>:::how much current the circuit draws (in terms of a few 100 mA, of course)
>:::
>:::
>:::-Michael Buchstaller
>

-- Scott Gravenhorst | LegoManiac / Lego Trains / RIS 1.5
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