Latest threads in Electronics Designshow only best voted threads
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Question regarding parameter format
Suppose that a complex impedance in magnitude - angle format is 1,25, 125 degree. When expressed as a complex number(R + jX format), R < 1, i.e., negative. What does this mean physically, specifically...
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4 years ago
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TLV431 maximum ratings
The TLV431 spec as an expample, shows a maximum Ika current rating of +/- 20mA does that mean it can be run "forward biased" as well as reversed in the usual Zener-like direction, and source current...
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4 years ago
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Russian space techs look pretty lame
I looked at the article about the failed docking of a russian module. They showed a picture of a couple techs looking over the thing a few days before the launch. No clean room to be seen... No wonder...
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4 years ago
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Sensing small inductances
Microcontroller-based strategies like this work OK for high-Q inductances:
148
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4 years ago
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Glazed Donuts per Bald Eagles Instead of km/h
What does that mean??? Freedom units are the best units! -- Rick C. - Get 1,000 miles of free Supercharging - Tesla referral code - Cells multiply by dividing. Yeah, wait, what?
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4 years ago
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Deere alternator
I'm learning about PM alternators, waiting for an aircraft 3-phase 400 Hz unit, so I ordered a single-phase John Deere rider lawn mower replacement unit, $50 from Amazon, to play with. There are 12...
11
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4 years ago
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Need help picking Ferrite material
Re: the dc saturation controlled variable inductor Low power inductor, receive antenna signals. I've decided to try an EFD shape core, reasoning for the choice; I can turn one side 180*, the center...
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4 years ago
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LTCC HV transformers
Some guys that I know have acquired Nascent Technology. They make interesting LTCC HV transformers:
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4 years ago
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Unfortunately, I dropped it!
I found a core in my junk box that worked for the "Designing an interesting inductor" Here's the physical shape. As you can see I dropped it and chipped the most important part off and now it has an...
2
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4 years ago
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OT: IEEE spectrum on grid parity in China
They don't say anything about energy storage and it's associated costs. is the published paper (which you can get at for free via the Spectrum link.
24
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4 years ago
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Amazing changes at TI
If you now click on a "datasheet" link, it no longer redirects somewhere... it just loads! More astounding, the PDF data sheet file now has the same name as the part! Not something like slou441.pdf. I...
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4 years ago
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custom transformers from China
There are custom transformer companies in China, with their pages on AliExpress, seeking orders for making custom transformers. Pick from their standard frame types and sizes, fill out a form, maybe...
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4 years ago
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Re: Antenna tester
what is written on the label? Automotive electric power is sketchy, the smaller the vehicle the worse it gets, you don't want accidentally bust your test equipment. Page1 and page2 disagree about...
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4 years ago
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Counting photons with an MPPC
Well, the MPPC demo system is done. It has four of our small proprietary boards (controller/SMPS, TEC driver, voltage-controlled amplifier, and APD bias) plus a handwired pHEMT-boostrapped front end...
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4 years ago
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Walmart suing Tesla for Solar panel fires
Dave Jones:
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4 years ago
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