Latest threads in Electronics Designshow only best voted threads

Subject Author Posted Replies
 
IC labelling, new style
A flyback controller IC, used with external MOSFETs and a flyback transformer for 12V to 450V, 20 watts. Shared with Dropbox
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superconducting quantum tunneling wire
Hi, If two or more parallel conductive wires with 0.5nm spacing have a current put through them from left to right as shown here: current travel -----> |------------------------------|...
 
OT: Horrific photos of World's most Evil Couple as they really are
WARNING: *Not suitable for those of a nervous disposition* Bill & Hillary are demons incarnate. Here's the proof:
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Cam Timer tricks
I'm trying to remember the various techniques one can do to increase what cam timers can do. So far I've got: Stop Wait until external event Fast forward 2nd faster drum Multiple programs per rev...
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How high do you need to get if your 6L6 is broken?
So, if the 6L6's in my guitar amp get broken, how high above the earth's surface do I need to get before they'll work? How high before they'll really work right? International space station?...
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Wife hit carport post, need outdoor LED holder.
We back our pickup into the garage. So you need to monitor the post in relation to the taillight of the truck. The problem is you can't see the tail light in the mirror, I'm thinking I would like to...
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OT: Pneumonia? Spumoni?
Pneumonia? Spumoni? Hillary's "pneumonia" episode has proved to be high-tech... A LiIon Battery Pack gross failure, and Hillary went into Stepford Wives crash mode >:-} ...Jim Thompson -- | James...
 
film caps with nice long leads
Sources anyone? Stubby leads need not apply.
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TI no longer provides tech support.
They just refer you to a forum. -- John Larkin Highland Technology, Inc picosecond timing precision measurement jlarkin att highlandtechnology dott com
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OT: I'm "deplorable" SQUARED...
I'm "deplorable" SQUARED... ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | STV, Queen Creek, AZ 85142 Skype:...
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MOSFET with best drain current per dollar or per area
It is tempting to make a spot welder from the Maxwell ultracapacitors e.g. the 3000F ones rated for 1900 Amps each. There is something nice about the idea of a spot welder that does not draw large...
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50-ohm power resistors
Hah, I'm gonna need a bigger heat sink! Running at full tilt my nanosecond 500V pulse generator will be dissipating 700 watts, mostly in 50-ohm resistors. I don't think banks of the 100W Caddock 9100...
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Oh FINE.
Wanted to know the lead inductance of a motor. No RLC bridge, so I take my reliably-50-ohm output impedance generator, vary the frequency, measure the amplitude. One ought to be able to fit a model...
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Ground
Hi all... just trying to wrap up a power supply. See here for yesterday's ground issue. So this whole circuit is run from a wall wart, and it has no ground connection. Today when I looked at the power...
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3rd and 5th harmonic rotor loss
Say I have a 3 phase 2 pole motor with the rotor delivering 1W of power Say again the current to the stator windings is sinusoidal, so the torque has very little ripple torque since the Back EMF is...
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