Latest threads in Electronics Designshow only best voted threads
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OT: Approx processor performance metrics
Hi, A group for which I'd built a small "computer lab" dropped me a note, today, indicating that they have a donor (business) willing to supply them with "newer" (but still not "current") machines...
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9 years ago
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Slow VDD rise in a STM32F051x
Cations, anions, onions, prions, ration, vacation -- OPINIONS, that's what I need! I'm building a circuit that's going to have a very slow rise on the supply voltage -- in the extreme, it'll ramp from...
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9 years ago
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helical resonators?
People used to sell these things, but I can't seem to find any. Murata and Toko seem to have gone out of the business. Have ceramics and saws replaced them? -- John Larkin Highland Technology, Inc...
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9 years ago
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input bias current of a current-mode opamp
We think we've observed bias current drift on some THS3062 current-mode opamps, on the non-inverting input, roughly 10 uA in 6 months, systematic in one direction across multiple amps. A regular opamp...
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9 years ago
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Get some perspective. We're FINished.
Hehehe... Not an obscure reference at all! One of the simplest explanations of the basic operation of a transistor I have ever seen, however. BRL!!...
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9 years ago
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Differential Amplifier is an input stage of every op-amp
Generally, if input stage of an operational amplifier is realized as BJT tr ansistor differential amplifier, op-amp has smaller slew rate, smaller volt age offset and better CMRR. If it's realized as...
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9 years ago
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Need help with 555 timer circuit development
I need a consultant to help me with my project for a fee. I would like to u se a 555 timer circuit to generate a variable 1 to 5 minute timer to altern ate between 2 bank of batteries that are...
40
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9 years ago
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OT: Today's HoneyDo Project
Today's HoneyDo Project Too many glasses, had to add... Mounted 18" down from ceiling (9' ceiling) so I can reach ;-) 48" wide by 22" deep Mean to work inside that narrow a space. ...Jim Thompson -- |...
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9 years ago
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Interesting question/rant? from EEVblog Dave
Are Electronics Hobbyists Useless? -Lasse
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9 years ago
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FEMM leakage inductance calculation
Hey I am new to FEMM, but have a real life problem. I have a transformer, which has 4 layer primary with about 50 turns on each layer (the winding used the entire width of the E core bobbin), and a...
3
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9 years ago
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Alternatives to capacitors from American Technical Ceramics
I need a broadband chip capacitor (0.01uf) that has nearly ideal performanc e up to 3 GHz. I'm using it to AC couple the RF input of a receiver. Americ an Technical Ceramics manufactures capacitors...
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9 years ago
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OT: Cryptic writings
Can anyone decipher what these mean? They're on the sidewalk at the apartment complex my father lives in: They're on the sidewalk near this transformer(?) enclosure. There was an explosion in it over...
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9 years ago
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Seeking data on California Devices Inc HCS gate arrays
Long shot ... I'm looking for any data or reference material on a 1980's era gate array (ULA) chip family. Google and data searches are not coming up with much, so I'm hoping someone may have this...
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9 years ago
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Comparators in Spice
I just cannot get any comparator to behave sensibly in Spice. For example, with the following, the output stays high regardless of the inputs. As configured, as far as I can see, the output should be...
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9 years ago
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Ripple DC voltage test bench
Hello all, A colleague has just suggest me to rent this kind of equipement : In order to implement a small ripple voltage injection in a DC power line. In fact these tests are in conformance with...
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9 years ago
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