Latest threads in Electronics Designshow only best voted threads
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Information Unlimited dealings?
Anyone here have difficulty dealing with this firm? I ordered parts from them to build a kit, but the remainder of the parts needed are outdated. I contacted them, but they take forever to respond and...
7
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4 years ago
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enormous drum core
It's rated for 3.6 amps. At 5 amps, it tends to attract nearby alligator clips. Well, not so nearby. In other news, we machined a shaft for our loaner aircraft alternator, and we're spinning it and...
10
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4 years ago
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10 | |
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Weird LLC current limiter
I have just found this pretty bizarre idea: It uses a transformer to limit the voltage swing at the resonant capacitor. Great, but why wouldn't they use a bidirectional TVS for the same purpose? That...
3
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4 years ago
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3 | |
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Electros in Series II
Hi, just came across a Chinese made powered mixer with Class D amps and SMPS. Branded Fender model "Passport 150 Pro". The 4AT 20mm AC fuse was blown and a replacement blew spectacularly at about...
28
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4 years ago
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28 | |
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anyone tried these HV power supplies?
Seem like they might be pretty robust for various applications, just wondering if anyone has tried one? There are other venders with them on eBay at even cheaper prices.
1
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4 years ago
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1 | |
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what is this high voltage display device called?
What I'm thinking of is not a plasma globe, although, like the globe, it too is intended primary for display. If I were to describe it, I remember it being made out of glass, maybe 1-2 feet in...
14
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4 years ago
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14 | |
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C0G AC derating
Hi, Polypropylene capacitors are no longer the only choice in the ~20nF/1kV+ range. Now there are C0G MLCCs as well. It makes me think whether they would work reliably as the LLC resonant capcitors,...
4
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4 years ago
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4 | |
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delta-sigma again
I'm still playing with delta-sigma A/D conversion in LT Spice. I'll be using the ADUM7703 isolated 2nd order converter, clocked at 20 MHz, and we're thinking now about decimation filters in an FPGA....
41
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4 years ago
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41 | |
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Handleiding plieger trekschakelaar ?!
Waar de fuck is de handleiding van deze trekschakelaar ?! Vrij complex ding: Kabels niet bevestigt aan muur toen ik hier kwam wonen, me not amuzed. Heb wel dit gevonden, een iets ander model, lijkt er...
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4 years ago
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PULL SWITCH IS GARBAGE (TREKSCHAKELAAR IS RUK)
PLEASE INVENT SOMETHING BETTER THAN THIS GARBAGE: ENGLISH GOOGLE-TRANSLATE-ASSISTED: TOO BAD. THE WASHING MACHINE IS STUCKED/CRASHED/POWEROFF. ON AGAIN TURNING ON, I HEARD BZZZZ AND THEN YET AGAIN...
1
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4 years ago
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1 | |
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OT: Ghost ships, crop circles, and soft gold: A GPS mystery in Shanghai
MIT Tech Review: Ghost ships, crop circles, and soft gold: A GPS mystery in Shanghai Haha, what's soft gold? Spoiler alert: sand. And GPS spoofing by Russia:
4
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4 years ago
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4 | |
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Radio Electronics past issues online?
Not just Radio Electronics necessarily, but are they freely online anywhere with possible indexes as to the many projects that appeared in them over the years? Electronics Now & others welcome too....
1
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4 years ago
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1 | |
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airplane connector
This is on an alternator, on a jet engine. The insulator is very soft, feels like silicone, and the pins are 40 mils diameter. What is this called? What sorts of words or connector types should I...
22
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4 years ago
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22 | |
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Looking for a bit of help with power over ethernet
I've just started digging into POE for a client product. Never looked at it before... Let's say I am using the common Hanrun HR911105A which can be seen here Now imagine a commonly used passive POE...
10
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4 years ago
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10 | |
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AGP30, issues with CO2 VOC sensor
Has anyone here used the Sensirion AGP30, a tiny I2C sensor for CO2 and VOC gases? It takes about 60mA to heat a hot plate, and it needs at least 15 seconds to start reading data. But ours is...
25
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4 years ago
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