Latest threads in Electronics Designshow only best voted threads
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Question about chemistry magnesium
Dunno how I cam eon to it, but somebdy mentioned fuel cells, and it seems they suck for small power (like charging ipads) applications. Anyways I started to google, and found that magnesium gives much...
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9 years ago
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Any of you use Multisim?
Any of you use Multisim? Can Multisim handle PSpice/LTspice style behavioral expressions... GDC_I1 X2 VN VALUE {(1+TANH(2.2/0.1*(V(X2,VN)-0.5)))/2*45u} Or can it only handle B-sources? ...Jim Thompson...
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9 years ago
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found on E-bay counter
counter module Ebay item number 181633676363 $10.88 for a eight digit counter with two ranges . One is 0.1 to 60 mhz and the other is 20 mhz to 2.4 Ghz. And it can have the reading offset from the...
4
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9 years ago
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OT; Amazone deliveries to mars ?
Amazone deliveries to mars ?
7
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9 years ago
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energy-time uncertainty principle
Hi, from the page: " "Our analysis reveals that a minimal finite length of time must elapse in order to achieve a given success rate for distinguishing an initial quantum state from its time-evolved...
8
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9 years ago
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"ยต" in LTSpice file
Hi all, my previous LTSpice listing. Please correct the listing accordingly. Habib.
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9 years ago
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OT: 3" Toilet Flapper without the !@#$% Low Flow Vent
OT: 3" Toilet Flapper without the !@#$% Low Flow Vent Where can I get it? Or has the nanny state forbid such? Then how to plug the vent ;-) ...Jim Thompson -- | James E.Thompson | mens | | Analog...
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9 years ago
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optical MEMS stuff
(If any of that is real. They keep showing their MEMS photomultiplier at the Photonics West shows, but you can't get a data sheet, much less a part.)
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9 years ago
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Any experience with Fairchild FSFA2100?
Folks, Has anyone used the FSFA2100 primary switcher chip? We are seeing some failures upon a "dirty" input power start-up. That shouldn't happen because per datasheet it has cycle-by-cycle current...
13
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9 years ago
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DC to 25Hz Isolated amplifier - 10KV Dielectric strenght
Hi all, I have to build an iso amplifier with several KV dielectric strenght. DC(i. e 0hz) is mandatory. Please guys take a look at the schematic here down and be kind to comment i t if you have time...
32
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9 years ago
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Phone Tower Photo - Please Describe
I was trying to explain what phone towers are about to my brother, and why each one seems to keep growing in size. For example, can someone please explain what each piece/type of equipment is on this...
31
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9 years ago
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OT: TerrorNews
Well, PteraGnuz is at it again, now for a few weeks and seemingly forever. No connect/recognition of username/password for the "free" user... They will not tell you, but they want you to convert to a...
13
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9 years ago
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estimating junction temperature of a power mosfet
Hello I design an electronic load, using IXTK200N10L2 power mosfets (T0264 package). I try to estimate the junction temperature of the mosfets, using an IR camera to measure accessible temperatures....
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9 years ago
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COTS UPS alternatives
Hi, My automation system, while highly distributed, is, for the most part, powered from a central location. I.e., a PoE switch acts to deliver power to most of the field (I think there is *one* node...
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9 years ago
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Linux question
Wrong forum, possibly. Can two separate programs (not threads) share a file handle? I'd like to have one program open a file, read a little from it, then turn it over to another program that reads the...
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9 years ago
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