Latest threads in Electronics Designshow only best voted threads
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New book project
Hi, All, I've been in touch with Wiley about a new book proposal. It's provisionally titled "Designing Electro-Optical Systems: Figuring It All Out". The editor likes it, so it's gone out for peer...
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7 years ago
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USB device can destroy most PCs
Anybody care to speculate on how this works? In the picture, the only things of significance I see are an inductor and a few largish caps. I assume it builds up a nice high voltage then pounds the PC...
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7 years ago
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DIY and/or repair LED picture frame lightbox?
Out of curiosity, I recently acquired a 16x20" LED lightbox that has a front opening frame whereby I can insert a picture. I placed a picture within it, plugged it in, and I now have it on the wall...
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7 years ago
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12V DC-DC converter square wave problems (and solution)
In a previous post I mentioned a small DC-DC converter using 12 VDC and an IRS24531 driving two dual MOSFETs FDS6930B and two custom built ferrite transformers with an E187 core. I tested one set of...
3
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7 years ago
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Junkbox boost converter fun
Here's a schematic of the junkbox HV supply I built. It's working okay. The only disappointing thing is that the efficiency is a rather unimpressive 65% at 12 volts in, ~180 volts out at 20 mA...
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7 years ago
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meander line
Here's one more silly circuit that I included on a recent proto board. One-way delay is 430 ps, and I hit 50 ohms pretty close. I don't always manage that. There is no significant pre-shoot on the TDT...
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7 years ago
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Looking for SPICE model for MJE13005
Could someone please point me to a SPICE model for the NPN transistor MJE13005. I have ploughed through the online OnSemi Web site, but not much luck. Thanks in advance for your help.
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7 years ago
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Another Delusional Nobody Wants to be President of U.S.
Look at this sorry ass excuse for a lifeform! Doesn't know a damned thing but he sure does have an opinion on everything...
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7 years ago
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This is the Kind of Second Rate Trash We Have Running the Country
The token military success story advising Clinton on how to evade various record keeping and security laws:...
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7 years ago
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DTP tool recommendations
My documents are starting to "stress" FrameMaker. I can either reduce the complexity of those documents () *or* find an alternative that is better able to handle their complexity. I looked at lyx and...
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7 years ago
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New Video: Implementing the PID Controller in Software
-- Tim Wescott Control systems, embedded software and circuit design I'm looking for work! See my website if you're interested
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7 years ago
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more Dremel fun
We built a new oscillator prototype, on a 4-layer board, and the temperature coefficient is a lot worse than expected. Heating and cooling individual parts doesn't make sensible numbers, so we're...
18
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7 years ago
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TI Code Composer Studio
TI are currently running a promotion on code composer studio. They are including a full license with the purchase of a low cost ($10) 430 launchpad. Note that this is the full CCS supporting all TI...
6
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7 years ago
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Speaking of walls
It seem Britain is about to build a fence in France to keep migrants out of Britain. Mikek
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7 years ago
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(OT?) Pulsed NMR phase.
So I took a call about our pulsed NMR yesterday. (Not my baby...) I finally found the customers problem. ('scope aliasing) But in the process I created a problem in my understanding. Given an...
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7 years ago
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