Latest threads in Electronics Designshow only best voted threads
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Function generator with higher output voltage
Hi all, I'm looking for an off-the-shelf function generator with more than the usual 10Vpp output signal. The requirements are 30..500Hz square wave, with 20Vpp and output impedance 50Ohms or less...
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8 years ago
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Toroidal Transformer Screening
Hi Another magnetics question! I have a SMPS which uses a toroidal ferrite transformer. It switches at ~100kHz, works very well, it's not my design and I can't change it. However, it introduces noise...
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8 years ago
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OT: JV Team
TENNESSEE TERROR: Gunman who killed 4 Marines in Chattanooga ID'd as Muhammad Youssef Abdulazeez THE GUNMAN who opened fire on two Chattanooga, Tenn., Navy training centers and killed 4 Marines, in...
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8 years ago
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35 | |
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OT: Costco auto program
Hi, Anyone purchased a vehicle through Costco's auto program? Disappointing that they won't tell you the expected savings until you've signed up -- which, of course, tips your hand to the dealer. One...
8
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8 years ago
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refrigerator light
The interior lights in my 8-year-old LG French Door refrigerator (purchased from Sears under the Kenmore brand) have stopped working. Very irritating, trying to find stuff in there in the dark. At...
120
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8 years ago
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120 | |
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Ping JT
You once asked about something like these: If you di't find a good solution maybe these will help
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8 years ago
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Windows 7 Reset Administrator Password
A friend forgot her admin password for windows 7 and is asking for help. Googling the problem I see the passwords can be reset using a "reset disk". I am not clear that this will reset the admin...
12
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8 years ago
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12 | |
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Pluto
-- John Larkin Highland Technology, Inc picosecond timing precision measurement jlarkin att highlandtechnology dott com
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8 years ago
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measurement idea for spacetime curvature as dark energy force
Hi, I had an idea before about how curved space time might have a tendency to expand in order to flatten out to a lower energy state, which could explain the dark energy force, the matter in the...
42
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8 years ago
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42 | |
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powdered ferrite with glue.
I want to smash to powder some ferrite material, mix it hot melt glue and s pread it over a sheet of rigid plastic such as polystyrene. Why? Because I want to move the sheet over a pancake coil to...
46
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8 years ago
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kazdego szkoda ;-)
/M
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8 years ago
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I don't understand thermostats
Imagine a mass that we want to heat with some closed-loop controller. It's C2 below. Voltage represents temperature. Thermal systems are diffusive, which we represent as a bunch of RC lags. Assume the...
51
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8 years ago
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51 | |
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SMT power inductor DC field
Hi, folks:- I'm trying to reduce the DC field caused by the continuous current through SMT power inductors (think low double digit amperes and less than 10uH). I'm seeing many hundreds of mG a few...
11
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8 years ago
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11 | |
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Saturated ferrite
Hi I have a choke wound on a ferrite core (N97 PQ32/20) which should have been gapped but wasn't. That means that it's saturating - the calculated Isat is 70mA but it has up to 400mA through it. New...
25
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8 years ago
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Gold thickness for wire bonding?
Gentlemen, Searched up and down the web but not much info. The PCB house (4PCB) offer three levels: 130 uinches nickel and then around 10uin (but not guaranteed) gold. Alternatively 30 uinches...
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8 years ago
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