Latest threads in Electronics Designshow only best voted threads
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UPS constraints
Hi, I want to site a larger (2-3 KVA) UPS in the garage as a convenience for the occasional outages we have, here. Currently, I relocate the smaller ~1KVA units to handle small loads -- replacing each...
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9 years ago
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ECT Schematic
Anyone ever seen a teardown/service manual of one of these? chines/
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9 years ago
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PIC24F clock switching issues
This is just a winge, really. I'm using a PIC24F that supports USB. It has an errata list as long as your arm, and already includes two issues related to switching between clock sources. One basically...
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9 years ago
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DDS wisdom
Hi, all, I have a gig coming in that will have me revisiting my thesis research from nearly 30 years ago, on interferometric laser microscopes. (Fun.) Back in the day, I made a nulling-type phase...
152
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9 years ago
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Probably trivial, but I'm a programmer - not a ee
I'm building an electro-mechanical doorbell as a gift. An arduino controls 4 servos which actuate 4 mallets on 4 chimes to play a melody. I have the arduino and servos operating as expected,...
70
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9 years ago
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70 | |
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Recommended Custom Magnetics Supplier
Hi We are currently using a danish supplier of custom magnetics, ranging from small flyback E core type transformers to big toroid common mode chokes, sourced from the far east. The price of the...
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9 years ago
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Op-amp voltage offset cancellation
Combination of one fast op-amp with large slew rate and large voltage offse t with one op-amp with small slew rate and small voltage offset and low pas s filter can be used for amplification input AC...
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9 years ago
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semiconductor drift
We have two 8-channel waveform generators that were shipped 4 months ago, and came back because the customer ordered too many or something. We routinely test anything that comes back, before returning...
52
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9 years ago
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idea for statistical correlation telescope with no optics
Hi, I think it is possible to build a telescope that can distinguish light sources and their properties based solely on statistics and correlating basic properties of the detected light over a period...
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9 years ago
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(K) coupling factor measurement
For you folks with an inductance meter with four leads, (Kelvin setup), coupling factor (K) between two cores is a simple measurement; Using the well known formula, K = M/sqrt(Lp*Ls), Measure Lp and...
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9 years ago
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breakthrough research
-- John Larkin Highland Technology, Inc picosecond timing precision measurement jlarkin att highlandtechnology dott com
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9 years ago
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Website Update
Behavioral_Comparators.zip has been added to the Device Models & Subcircuits Page of my website. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's...
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9 years ago
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Check This Distortion-Free Notch Filter
I found this filter concept in an old magazine. It claims to be a distortion-free 50Hz notch. I am looking for a design that will filter 50Hz from a EKG type signal with no phase distortion. Does the...
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9 years ago
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Cmos Battery/Clock
Well I've received my M48T86PC1 Cmos Clock Lithium Battery as a gift from China, according to the custom declaration. It is an ST microelectronics part, my concern is the manufacturing date. The Chip...
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9 years ago
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TEC's as heaters @ 60 - 70 C
I got around to testing a whole bunch of laser diodes, which we tune to the 780 nm line of Rubidium. A number of them (~10-20%) have a long wavelength, and I'll have to cool them to T < 10 C*. I'm a...
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9 years ago
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