Latest threads in Electronics Designshow only best voted threads
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Differential amplifier with amplification
Hi I need to measure a load on 14V line, using say 10 (or 100) milli-ohm resistor. I want to get an output like 0-4V for 0-4A load. A small offset of 1V is acceptable. Even 0-2 or 1-3 or 0-8V for the...
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10 months ago
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Microwave repair
My microwave stopped working last night. Looks like it's the fuse. I can barely make out 15A on the metal cap, but no indication of fast or slow blow. The case is ceramic. Any ideas?
14
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10 months ago
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14 | |
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New report identifies COVID Patients Zero
...and they are researchers at the Wuhan virology lab! ALL those claims by Pope Fauci were, at best, WRONG! At worst, they were deliberate misinformation designed to shield the CHICOMs. Video shows...
13
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10 months ago
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Another EV aircraft bites the dust
After three years of research and development work, Tecnam said that currently available batteries would not be viable for operators due mainly to the need to frequently replace them. “The...
4
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10 months ago
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dollar store wire
The local dollar store is offering various materials aimed at decorative or other consumer grade applications - wood, adhesive, paper, plastic film, wire etc. Some of the wire coatings might be suited...
4
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10 months ago
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4 | |
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InP
've only seen and used tiny MMIC amplifiers in InP. It's interesting that more devices don't use them. Some of the MMICs are cool. Simple, cheap, fast, unconditionally stable. They are all spec'd in...
3
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10 months ago
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3 | |
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MEMS is back
keep introducing breakthrough MEMS relays but, so far, none have been successful products. Omron introduced a MEMS relay but they seem EOL already. Improve Insertion Loss with the MM5130 is the...
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10 months ago
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5 GHz ferrite beads!
I like to use SiGe microwave transistors for all sorts of off-label things, as some SED veterans may remember. The Infineon BFP640 and BFP650 parts aren't the absolute fastest any more--they top out...
4
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10 months ago
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more "American" cheese
added pics from the Safeway cheese island. Safeway is our giant generic supermarket so doesn't have the exotica of the smaller markets and cheese stores, but there's still a lot of good stuff. We...
42
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10 months ago
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42 | |
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Current limiting with a mosfet?
Is it easy to make a simple circuit to limit a 12V DC current to 50A using a mosfet? Can I just give it a variable voltage to turn it on a certain amount? Or is it not that easy?
21
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10 months ago
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21 | |
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Power line time base
Turbine generators turn at a regulated frequency, and even 100+ years ago they must have kept it somewhat close to optimum, probably using a mechanical regulator. When did they start doing it with...
14
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10 months ago
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14 | |
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Toyota Solid State Battery
It supposedly will give a vehicle 900 mile range someday. No details. <> Toyota claims solid-state EV battery tech breakthrough Toyota claims solid-state EV battery tech breakthrough
9
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10 months ago
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another air flow sensor circuit
(I hope that link works) The darlington is a TO-92 sticking up from the PCB into the air stream. The idea is to turn on the mosfet for a while to heat up the darlington, then turn it off and take a...
3
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10 months ago
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Rise time of standard FR4 vs low loss laminates
Hi I am working on a design where we have a fast rise time of a signal, below 1ns and above 50V. We want that fast risetime, part of the requirement. The topic has come up of the selection of the...
6
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10 months ago
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Explain the output of the old TV flyback transformers.
I'm backing off of the neon sign transformer 12kV power supply. For the reasons I was told, the low frequency requires big capacitors. Also, I ordered 20kV caps from Amazon and 6 of the 12 failed at...
22
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10 months ago
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