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There are 714116 individual articles here that are part of 39048 discussions
Please see below the list of the most recent and the best rated articles in Electronics Design

The most recent discussions

Dirty sine wave generator

September 19, 2019, 5:35 am

Is there a way to extrapolate this D flip flop-based/XOR modified sine-wave generator to be a little less steppy using a couple more flops or XOR gates? or provide outputs of different phases? I... Read more »

Noise figure and Volts/rtHz

September 18, 2019, 5:59 pm

This Jfet lists noise figure as 2.1 dB, how do I turn that into v/rtHz ? Is the reference a 50 ohm resistor? So 3dB would be twice the voltage noise density of a 50 ohm resistor? https://www... Read more »

OT: 1.8GW solar park nears completion

  [ 2 ]
September 18, 2019, 1:18 pm

https://spectrum.ieee.org/energywise/energy/renewables/egypts-massive-18gw-benban-solar-park-nears-completion Located in Egypt's Western Desert, west of the Nile, but in the eastern Sahara. 1.8G... Read more »

MRI imaging inside Lithium ion batteries

September 18, 2019, 4:53 am

The is from this week's Proceedings of the (US) National Academy of Sciences https://www.pnas.org/content/116/38/18783.abstract?etoc Apparently the researchers have worked out how to get good quali... Read more »


September 17, 2019, 9:50 pm

MIT is habitually involved in some scummy scandal or other like I thought these people were supposed to be smart. I don't want to see the Media Lab crumble due to Epstein's dirty money why not?... Read more »

Re: OT: Why is Germany so (apparently) stupid to give up nuclear power?

  [ 2 ]
September 17, 2019, 2:40 pm

At the time, the world, Germany included, was well underway to re-embrace nuclear power, to reduce CO2 emission and all that. And then Fukushima happened. Jeroen Belleman Read more »

Driven switch body. (what about greater than one bootstrap)

September 16, 2019, 11:45 pm

So I copper clad proto-ed the grayhill rotary switch into my PD thing. I can post pics.. at 1 MHz an inch of bus wire is not a big deal. Anyway with the switch body grounded the step response... Read more »

MTA-100 connectors

  [ 2 ]
September 16, 2019, 10:10 pm

I've become a big fan of MTA-100 mass- termination connectors (as Tyco TE Connectivty calls them), used for off-board wiring. Here's a link to the PCB-mount headers at Digi-Key. https://ww... Read more »

Maximum rep rate for a standard microswitch.

  [ 2 3 4 ]
September 15, 2019, 11:45 pm

I wanted to make a turns counter for my drill press. I have it set for 330 RPMs or about 6 cycles per second. It doesn't work. Unreliable counting. My high point is (switch closure time) about... Read more »

electrospinning +15kV and -4kV = 19kV

  [ 2 ]
September 15, 2019, 6:49 pm

Electrospinning is an interesting technique for making nanofibers. We used +15kV on the needle of a motorized syringe pump and -4kV on a collection mat = 19kV total. The electric field pulls ... Read more »

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The best rated discussions


STmicro acceleration/magnetic sensor LSM303DLH == LIS331DLH + HMC5834?

Just had a look at the LSM303DLH datasheet and had a déjà vu ;-) It looks like ST has simply put a LIS331DLH and a HMC5843 into one package. (The HMC lacks the built-in voltage regulator) All data ar... Read more »


LT Spice schmitt oscillator

  [ 2 ]

Does anybody have a working LT Spice netlist for a simple schmitt inverter/R-C oscillator? I tried one using the library schmitt inverter and get obscure sim errors, and I don't understand the HELP ... Read more »


propagation velocity experiment

This would involve CK722 transistors, slotline samplers, and pecan pralines [1]. Unit of measure would be kiloseconds. Let's see what happens. John [1] The crunchy kind, of course. Only Yankee touris... Read more »


How to isolate 5V and 12V circuit

Hello everyone, I have extend existing circuit design by adding a 12V relay to it. AT the moment both 5V and 12V circuit are side by side. This doesn't work well. Intermitent device failure happen. I... Read more »


DSP Device for Guitar Pedal Effect

  [ 2 3 ]

I was wondering what DSP chip would be appropriate for a guitar pedal effect. I need to sample the incoming signal preferably at 96kHz perform a simple numeric function upon each sample and output h... Read more »


rechargeable batteries

Hello How can I charge a rechargeable battery in the lab, what's the 'reverse connection'? Read more »


Tek TDS 744A -> TDS 784A upgrade hack!

Hi, all, Just wanted to report success in upgrading my TDS 744A scope (500 MHz, 2 gigasamples) to a much swoopier TDS 784A (1 GHz, 4 gigasamples). It now identifies itself as a TDS 784A everywh... Read more »


EPE TENS circuit.

Would anyone have a circuit for the EPE TENS machine ?. Cheers .... jk Read more »


Secure PIC programming

Hi We have customers using PICs who sometimes need to re-program them with updated firmware. It's inconvenient to have to ship the equipment back to a service centre, and most customers are quite... Read more »


Protection circuit to be used for a gate pulse of SCR

Hello, I am doing a project on a temperature control system.My controller has been designed in LabVIEW and I get a control signal of 0-5V output from DAQ which needs to be given as gate pulse to SCR.... Read more »