Latest threads in Electronics Designshow only best voted threads
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Carbon nanotube 16 bit CPU comes of age
This made the physics news today. A working 16bit CPU fabricated on carbon nanotube semiconductor material. Also in Nature and unusually the link from the Physics website gives free access (maybe only...
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4 years ago
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OT: Artificial heart that seems to work
IEEE Spectrum has thrown up an interesting project It's a purely centrifugal pump - or perhaps a pair of pumps , since one side of the spinning rotor feeds the lungs and the other the rest of the body...
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4 years ago
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Best Way To Power This ?
I got these two pieces of equipment. One is a Data Precision benchtop DMM. It had a bad power transformer. It ru ns on a shunt Zener regulation using the impedance of the transformers. not something I...
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4 years ago
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Buying Greeenland
That would be great! We could send all asylum seekers there until they get their court date, rather then release them into the states never to be seen again. Great idea Trump. :-) Mikek
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4 years ago
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Connector ID?
Hi, all, I have this very nice Mitutoyo FS-110 metallurgical microscope with a slightly mismatched lamp housing (wrong connector). It works okay with a separate DC power supply, but I'd much rather...
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4 years ago
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Aluminum electrolytic capacitor failure modes and ripple current ratings
I am trying to get a handle on ripple current ratings for capacitors, start ing with the ChemiCon KZN series. The data sheet has specifications for ra ted ripple current and maximum temperature. It...
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4 years ago
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Calculating inductance, Datasheet says AsubL =75 (nH)
I know and use the formulas for calculating turns on a core. For Ferrite cores N=1000 x sqrt of (your desired L (in mH) / AsubL (mH/1000turns) For Iron Cores N=100 x sqrt of (your desired L (in uH) /...
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4 years ago
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AC Current Measurement
Let's say we have +/-20 Amps of AC current flowing at 250V into (Source) o r out of (sinking) a node. (The node is the grid and we can either supply o r sink current to that node). Measuring current...
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4 years ago
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Al electro's vs polymer?
Enough with these tantalum caps. I've got a 10 uF 35V cap as part of a power supply filter (w/ 100 uH inductor). I want to replace it with something else. (I somehow blew this.. by shorting the...
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4 years ago
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Re: Tesla fires, Amphenol connector
The 65A rating is for #8 wires, sheesh! It's only rated at 15 and 20A for #14 and #12 wire. A string of 300W panels can't create more than about 9 amps. The H4 PV Connector is the premiere solar...
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4 years ago
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Sales Tax Laws Got Complicated
The whole "economic nexus" thing is complicated and varies from state to st ate. Looks like the Supreme Court opened a bit of a can of worms. Here is what Maryland says about it... "A marketplace...
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4 years ago
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RF transistor load pull simulation with SPICE
Could some electronics guru here please clarify this ? Is it feasible to perform load pull simulation for a RF transistor using SPICE's transient(large signal) analysis scheme ? Of course the load or...
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4 years ago
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big FPGA
Any guess what this might cost? https://www.xilinx.com/publications/product-briefs/virtex-ultrascale-plus-vu19p-product-brief.pdf
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4 years ago
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Best Linux newsgroup?
For people who are switching to Linux, in my case Lubuntu, what is the best English-speaking NG for software and which one for hardware related stuff? I participate in two German groups. The software...
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4 years ago
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Heat sensing, with IR diode?
Hi I am way out here on deep water, but here it goes: I need to detect a change in temperature on a black metal surface. Let's say that there is no other option than a contactless method. The sensor...
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4 years ago
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