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<nicksydney>
is "power inductor" and "Chip Common Mode Choke Coil" the same component ?
<nicksydney>
trying to find the component for this schematic http://postimg.org/image/psdbdxcbz/95123ed2/ for L1 (Murata LQH4C6R8M04) but can't find any looks like it's a defunct component....and can see on Murata's website that they have other similar component but bit confused
<nicksydney>
DocScrutinizer05: been looking around for replacement as seems like that product is old...one thing not sure in the datasheet it outline about "Self resonant Frequency (Mhz) http://postimg.org/image/wi633v067/ ... does that normally make a huge difference if the replacement is slightly lower or higher ?
<DocScrutinizer05>
slightly doesn't make much difference
<DocScrutinizer05>
LQH4 size factor doesn't exist anymore, it seems
<nicksydney>
i need to download their excel calculator to calculate what value for the L1 need to use to get 19v ...the LCD datasheet is saying http://postimg.org/image/gk4wrqew5/c9701ab5/ (for 5inch)
<nicksydney>
and also the value of R1 and R2 ..as the calculator will give you those value too
<DocScrutinizer05>
nicksydney: you need a completely different circuit for backlight. You need current regulation o.O
<DocScrutinizer05>
NOT voltage regulation
<DocScrutinizer05>
19V is only a sidenote value
<DocScrutinizer05>
40mA is the relevant thing
<DocScrutinizer05>
unless datasheet says different (I don't like those datasheet "pictures")
<nicksydney>
reading TPS61040 datasheet it says it's "a high frequency boost converter dedicated for small to medium LCD bias supply and while LED backlight supplies"
<DocScrutinizer05>
cya
<nicksydney>
and the features the datasheet writes• Adjustable Output Voltage Range up to 28 V converter dedicated for small to medium LCD bias
<nicksydney>
• 400-mA (TPS61040) and 250-mA (TPS61041) Internal Switch Current
<DocScrutinizer05>
meh
<DocScrutinizer05>
do you even understand what's LCD bias?
<nicksydney>
my understanding is minimum technically but what i know is the TFT requires - and + voltage ... not completely in tune with the technical of LCD bias
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<whitequark>
TIL: Moscow doesn't have a centralized system to control traffic lights
<whitequark>
they just... kinda do their own thing, (almost) every single one in isolation
<larsc>
makes them resistent against hacker attacks
<whitequark>
I believe there was a recent incident when someone hacked the information panels and put hardcore porn onto them
<wpwrak>
so that was the first time anyone actually paid attention to them ? :)
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<wpwrak_>
hmm, the gods of nouveau crashes seem to be against me running the demo of kerbal space program :-(
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<whitequark>
wpwrak_: nouveau isn't good for 3D.
<whitequark>
besides, even proprietary nvidia driver (and it *is* good) can hardly bear the load on my system
<aazzddgg>
I'm having problems with gnome3(shell) and nvida m7000
<aazzddgg>
I've decided that instead of swaring using the tipicla words I'm going to swar using names of comapnys I don't like, so imagine.... NViDIA!! arrr microshoft, Appp-A-L-E, monshanto, etc
<aazzddgg>
typical
<whitequark>
wat
<aazzddgg>
just my fun
<aazzddgg>
imagine them being shouted with anger...
<aazzddgg>
swearing
<aazzddgg>
s/swar/swear/g
<aazzddgg>
company's
<aazzddgg>
sorry I press enter when I meant to spell correct