Latest threads in Electronics Designshow only best voted threads
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mineral identification from spectrally filtered strobe light
Hi, If doing a UAV night flight with a sensitive 0.001 lux camera, and a spectrally filtered strobe light with a powerful light output pulse, how feasible would be it be to detect reflected light...
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9 years ago
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OT: Mouse Action Reassignments.
Is there a program that will reassign mouse actions? I'd like the following (Window-specific to PSpice Schematics)... Mouse wheel forward one click, send ,, Mouse wheel reverse one click, send ,,...
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9 years ago
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OT: The Great Thanksgiving Hoax
The Great Thanksgiving Hoax By Richard Maybury Each year at this time school children all over America are taught the official Thanksgiving story, and newspapers, radio, TV, and magazines devote vast...
47
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9 years ago
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Euthanasia Coaster
Exercise for the day: How does maintaining g's against drag (~ v^2) require a trajectory with curvature linearly proportional to arc length, the clothoid?
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9 years ago
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Black Friday Brutality, Mayhem and Murder
+$60 Billion in sales drives this idiocy. It's time for the government to step in and ban it. Makes you wonder how things will go when they start rationing food due to shortages consequent to global...
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9 years ago
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Behavior of Sprial Coils
Excuse me if I posted this before. I was having trouble with my news server. It did not appear in my news reader or Google groups, so I am trying again. Behavior of Spiral Coils I would like to wind a...
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9 years ago
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that PLL again
I decided, interlaced with cooking and serving three sessions of turkey dinner, to simulate the 155.52 MHz PLL, the one that uses a 10 MHz reference and a d-flop bang-bang phase detector. The LT Spice...
187
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9 years ago
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187 | |
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Enjoy Your Butterball
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9 years ago
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Novel Passive Radiative Cooling
This is more physics curiosity than anything else but since it uses semiconductor fab line technology in its manufacture is of interest. A passive device that uses layers of silicon and dielectric to...
28
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9 years ago
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OT: Gee, a letter from Homeland Security...
...must be important? Copy below (note poor use of language,etc): FROM .. HOME LAND SECURITY DEPARTMENT!! MG Timothy J. Lowenberg,Adjutant General and Director State Military Department Washington...
3
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9 years ago
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Infamous aluminum-lifting electromagnet, DIY proj
Is this 1950s? DIY project online anywhere? My google-fu is failing. I first encountered it as a library-nerd in 1970s grade school. The device was a 120VAC electromagnet version of a pot-magnet with...
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9 years ago
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What Is the Power Company Selling?
Someone asked me ths question and I was at a loss for an answer. What exactly is it you are getting from the power company? There is no continuous stream of electrons travelling from there. The...
49
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9 years ago
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Galvanic isolation without transformers ??
Could some electronics guru please help ? Maybe this is a very silly question, so please pardon me. A voltage transformer is used to provide galvanic isolation, in a power supply, amongst other...
59
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9 years ago
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59 | |
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geometry reconstruction from multiple images
Hi, I am interested in geometry reconstruction using multiple high resolution camera images from different points in space, the application is for aerial mapping of landscape terrain. The images are...
18
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9 years ago
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LED Backlight driver output current / voltage
Our LCD has 10 series white LEDs for backlight with total Vf of 15V and cur rent of 40ma. The backlight circuit is designed with SC4509. As per the dat asheet its recommended output voltage is 20V and...
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9 years ago
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