From: Fred Bloggs
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Subject: Re: V regulator input cap size?
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Date: Tue, 05 Nov 2002 13:26:23 GMT
NNTP-Posting-Date: Tue, 05 Nov 2002 05:26:23 PST
Organization: EarthLink Inc. -- http://www.EarthLink.net
John Fields wrote:
> On Sun, 03 Nov 2002 00:39:49 GMT, Fred Bloggs
>>John Fields wrote:
>>>I have a better idea...
>>>Since I found a relay with a coil which matches the OP's and worked
>>>out the coil pickup and dropout currents as a function of temp and
>>>coil resistance tolerances as well as tidying up the mains tolerance
>>>thing, why don't you take over and work on the rest of it until you
>>Hmmm-some people are too clueless to get stuck. It is clear from your
>>approach that you are unaware of the tolerance spread on the
>>mechanicals. Unlike a performance histogram plot for the much more
>>precisely manufactured semiconductor products, the typical relay plot
>>may have only 30% of products clustered negligibly close to "typical"
>>with a fairly sizable percentage of outliers. You may have as much as
>>10% with pickup levels exceeding 90% nominal at room temp, and in either
>>case as the wire/core temp increases towards 100C even the "typicals"
>>shift up towards 100% nominal.
> Declining the offer, huh?
> What's clear is that you don't know what you're talking about.
> Rather than take the time to edify you, I suggest you get copies of
> NAIS (Aromat), Omron, and P&B's data books and study them. Pay
> particular attention to the meaning of "nominal".
>>>In the meantime, I'll work on optimizing my reactive supply
>>This project may be beyond your capabilities, but good luck anyway.
> Well, it's on the bench, working, but thanks anyway.
Are you too much of a coward to post a schematic of your "optimized"
reactance regulator? Post it and standby for a beating. Your little
bench setup demonstrates nothing. Do you own a temperature chamber?