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   alt.electronics      Electronics design, repair, worship, etc      7,706 messages   

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   Message 7,177 of 7,706   
   Rod Speed to Gothberg"@internet.co.is   
   Re: Do switch mode power supplies flicke   
   23 Dec 18 10:01:40   
   
   XPost: alt.home.repair, uk.d-i-y   
   From: rod.speed.aaa@gmail.com   
      
   "William Gothberg" <"William Gothberg"@internet.co.is> wrote in message   
   news:op.zuf26tmpo5piw3@desktop-ga2mpl8.lan...   
   > On Sat, 22 Dec 2018 21:18:35 -0000, Rod Speed    
   > wrote:   
   >   
   >>   
   >>   
   >> "William Gothberg" <"William Gothberg"@internet.co.is> wrote in message   
   >> news:op.zufy2bv8o5piw3@desktop-ga2mpl8.lan...   
   >>> On Sat, 22 Dec 2018 02:55:55 -0000, Rod Speed    
   >>> wrote:   
   >>>   
   >>>>   
   >>>>   
   >>>> "William Gothberg" <"William Gothberg"@internet.co.is> wrote in message   
   >>>> news:op.zueh1ynoo5piw3@desktop-ga2mpl8.lan...   
   >>>>> On Fri, 21 Dec 2018 23:07:42 -0000, Rod Speed   
   >>>>>    
   >>>>> wrote:   
   >>>>>   
   >>>>>>   
   >>>>>>   
   >>>>>> "William Gothberg" <"William Gothberg"@internet.co.is> wrote in   
   >>>>>> message   
   >>>>>> news:op.zud6dhovo5piw3@desktop-ga2mpl8.lan...   
   >>>>>>> On Thu, 20 Dec 2018 19:25:49 -0000, Rod Speed   
   >>>>>>>    
   >>>>>>> wrote:   
   >>>>>>>   
   >>>>>>>>   
   >>>>>>>>   
   >>>>>>>> "William Gothberg" <"William Gothberg"@internet.co.is> wrote in   
   >>>>>>>> message   
   >>>>>>>> news:op.zubpuunso5piw3@desktop-ga2mpl8.lan...   
   >>>>>>>>> On Thu, 20 Dec 2018 04:27:41 -0000, Clare Snyder   
   >>>>>>>>>    
   >>>>>>>>> wrote:   
   >>>>>>>>>   
   >>>>>>>>>> On Wed, 19 Dec 2018 16:39:50 -0000, "William Gothberg" <"William   
   >>>>>>>>>> Gothberg"@internet.co.is> wrote:   
   >>>>>>>>>>   
   >>>>>>>>>>> On Wed, 19 Dec 2018 16:34:11 -0000, whisky-dave   
   >>>>>>>>>>>    
   >>>>>>>>>>> wrote:   
   >>>>>>>>>>>   
   >>>>>>>>>>>> On Wednesday, 19 December 2018 16:21:43 UTC, Mark Lloyd  wrote:   
   >>>>>>>>>>>>> On 12/19/18 6:01 AM, William Gothberg wrote:   
   >>>>>>>>>>>>>   
   >>>>>>>>>>>>> [snip]   
   >>>>>>>>>>>>>   
   >>>>>>>>>>>>> > They probably are fairly crude.  I know they flicker, for   
   >>>>>>>>>>>>> > example   
   >>>>>>>>>>>>> > if   
   >>>>>>>>>>>>> > I   
   >>>>>>>>>>>>> > use my cordless drill, the chuck appears to spin the wrong   
   >>>>>>>>>>>>> > way   
   >>>>>>>>>>>>> > under   
   >>>>>>>>>>>>> > the   
   >>>>>>>>>>>>> > LED lighting.   
   >>>>>>>>>>>>> I remember seeing that with a washing machine (under   
   >>>>>>>>>>>>> fluorescent   
   >>>>>>>>>>>>> lights). As the tub was slowing down, the row of holes around   
   >>>>>>>>>>>>> the   
   >>>>>>>>>>>>> tub   
   >>>>>>>>>>>>> would appear to reverse direction. Same thing with (spoked)   
   >>>>>>>>>>>>> wagon   
   >>>>>>>>>>>>> wheels   
   >>>>>>>>>>>>> in movies.   
   >>>>>>>>>>>>   
   >>>>>>>>>>>> You can also observe such things using a smartphone that has a   
   >>>>>>>>>>>> high   
   >>>>>>>>>>>> FPS   
   >>>>>>>>>>>> rate for recodring movie.   
   >>>>>>>>>>>> I can see the labs lights flicker when I film at 240FPS   
   >>>>>>>>>>>> standard   
   >>>>>>>>>>>> 60   
   >>>>>>>>>>>> and everything seems fine.   
   >>>>>>>>>>>   
   >>>>>>>>>>> Everybody seems to constantly cut corners.  Lights should just   
   >>>>>>>>>>> be   
   >>>>>>>>>>> on,   
   >>>>>>>>>>> no   
   >>>>>>>>>>> flicker at all.  Fucking annoying if you have decent eyesight, I   
   >>>>>>>>>>> can   
   >>>>>>>>>>> see   
   >>>>>>>>>>> the flicker from almost everyone's LED tail lights.   
   >>>>>>>>>>   
   >>>>>>>>>>   
   >>>>>>>>>>   This is sounding more and more like our "engineer friend" who   
   >>>>>>>>>> needs   
   >>>>>>>>>> to do his own tire repairs and alignments and clutch repairs.   
   >>>>>>>>>   
   >>>>>>>>> Don't know who you're referring to, but what's wrong with striving   
   >>>>>>>>> for   
   >>>>>>>>> perfection?   
   >>>>>>>>   
   >>>>>>>> It increases costs for everyone who isnt a freak.   
   >>>>>>>   
   >>>>>>> There's perfection and there's perfection.  You for example like   
   >>>>>>> LEDs   
   >>>>>>> you   
   >>>>>>> can control the colour of, nothing wrong with that.  But OCD folk   
   >>>>>>> take   
   >>>>>>> things too far, like washing their car every day because of two   
   >>>>>>> specks   
   >>>>>>> of   
   >>>>>>> dust.   
   >>>>>>   
   >>>>>> All irrelevant to whether it makes any sense to design   
   >>>>>> all car lights so that no freak ever sees any flicker at all.   
   >>>>>   
   >>>>> When "freak" is half the population,   
   >>>>   
   >>>> Half the population don't see car lights flicker.   
   >>>   
   >>> Agreed, and the other half do.   
   >>   
   >> Bullshit they do.   
   >>   
   >>>>> you need to account for them.   
   >>>>   
   >>>> Nope.   
   >>>>   
   >>>>> If you think they're a minority,   
   >>>>   
   >>>> I know there are.   
   >>>>   
   >>>>> why does google have 4.5 million results for the car light flicker?   
   >>>>   
   >>>> Just a few mindlessly ranting freaks, like you.   
   >>>   
   >>> I must have asked about 30 people I know about it, and about half agreed   
   >>> it was irritating.   
   >>   
   >> The technical term for that is 'pathetically inadequate sample'   
   >   
   > I've done statistics at uni,   
      
   And clearly the whole lot went right over your head, as always.   
      
   > I know what an adequate sample is.   
      
   You clearly don't with that steaming turd above.   
      
   If half could actually see car lights flicker, the   
   designers wouldn't have designed them like that.   
      
   In spades with movies in movie theaters. That frame   
   rate was chosen because most couldn't see that flicker.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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