Latest threads in Electronics Designshow only best voted threads

Subject Author Posted Replies
 
Why don't inductive spikes get through a transformer?
Consider a simple power supply / wall wart. Mains voltage in, 12V out. When you switch it off at the mains, while the load was drawing current, you'd get a massive voltage spike across the primary. So...
9
9
 
Larkin Street
This is suitably weird. https://www.dropbox.com/s/okuw8p9r39we3e9/Larkin_Street.jpg?raw=1 https://www.dropbox.com/s/okuw8p9r39we3e9/Larkin_Street.jpg?raw=1
16
16
 
All the nice FM radio ICs are gone, sniff sniff
All of them, just in the last year or so. SA604A/SA614A was a fave, although not as nice as the late lamented MC13155. BITD I used to use the RSSI outputs for all sorts of stuff--even some of the...
6
6
 
LTSpice UI
Is there anyone here who thinks LTspice has a good UI? I've been working with it for a week or so, after not using for over a year. It's very hard to reacclimate to the zoom in and out being backwards...
52
52
 
Re: Third year 'flu season'
Flu Season? Fatality comparison to past events in the U.S.A. Updated Mar01 to include a third year trend or 'season'. Compacted for 'single year' comparison. RL
 
Anyone with semiconductor bandstructure calculation experience ?
All you electronics gurus here, anyone with band structure calculation experience ? I have written a set of C and Python programs to do these types of calculations, and would like to ask a few...
6
6
 
BJT E-B zener
Where would I go to look for information about using the E-B connection of a 2N3904 as a zener? It has much better leakage than a regular zener but I dont know what kind of power it can handle or how...
44
44
 
Re: Hilfe bei OP Schaltung - ungewolltes Triggern beim Einschalten
Am 28.02.2023 um 14:41 schrieb Max Sailor: Versuche es einmal mit einem 100 uF/16V Elektrolytkondensator mit + an der Basis von Q1 und an Masse.- Aber warte 'mal ab, was die anderen Leute hier...
3
3
 
Could deep boreholes solve our nuclear waste problem?
Could deep boreholes solve our nuclear waste problem? Of course it does not solve the radioactive fallout from WW3.. Small bore holes could provide an alternative to centralized waste repositories....
51
51
 
Unusual atom helps in search for Universe's building blocks
Unusual atom helps in search for Universe's building blocks muon, ceasium, no more CERN tunnels needed? Like I said many times before: if you cannot do it with those small particles on the table top...
5
5
 
Measuring state of charge in LiFePo
It seems to be a problem for solar based batteries with a 48V say it's real tricky... temperature/charge rate/discharge rate blah blah. So why is it so hard to get an accurate SOC ? 0%= ~40/41V 100%...
9
9
 
Lower voltage diode the other side of a step up transformer?
Can I put a diode BEFORE a step up transformer so I can use a lower voltage diode for half wave rectification?
69
69
 
New design for lithium-air battery could offer much longer driving range compared with the lithium-ion battery
New design for lithium-air battery could offer much longer driving range compared with the lithium-ion battery Scientists have built and tested for a thousand cycles a lithium-air battery design that...
8
8
 
half bridge drivers
Anyone know of a half bridge driver with a capability around 15 amps for a 12 volt system? Infineon's ifx007tau would work but rated at 50 amps it's an overkill. In the same direction, the ifx007 was...
21
21
 
HAT
I see little PC boards, accessories for arduinos and rpis and such, called shields and hats. Anybody know what HAT stands for?
3
3