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There are 738708 individual articles here that are part of 40029 discussions
Please see below the list of the most recent and the best rated articles in Electronics Design

The most recent discussions

OT: New Evidence Supports the Bio-Weapon theory

May 26, 2020, 12:28 am

Let's see how the Chinese explain *this* away... https://tinyurl.com/ya5jls85 Read more »

Ackerman Agreement Current Limiter

May 25, 2020, 9:10 pm

There seems to be some interest in the LED current limiter I needed for a r ecent design. There is another current limiter to charge the supercap that powers the LED and sounder. I thought I'd p... Read more »

RF board layout

May 25, 2020, 4:42 pm

Hello, Experts I would like to ask for your opinion on following issue in RF PCB layout. I am dealing with a layout of RF PCB. There are different components in the schematic, all are in SMT pack... Read more »

5G turns on and immediately a new childhood disease!

May 25, 2020, 4:11 pm

5G activated a new child disease ! Google it ! https://www.ad.nl/binnenland/ook-in-nederland-allen-van-mis-nieuwe-kinder sickness~acdea8cc/?referrer=https://www.google.com/ https://www.vodafonezig... Read more »

Near disaster with PCB design

May 25, 2020, 10:32 am

Today the PCB design component of my old CAD program CircuitMaker 2000 crashed as it occasionally does in Window 7 (it never did in '98, Me & XP). I terminated the program with Task Manager but ... Read more »

Spam Phone Numbers

May 25, 2020, 6:19 am

Like a lot of people, I use email addresses to catch the spam. I have a Ya hoo address for web sites where I don't care if I ever hear from them after getting past a sign up page. When it is a n... Read more »

Rise time measurment

May 24, 2020, 4:36 pm

Greetings, gentlemen, I'm using my 350Mhz Tek analog scope (model 2465A for the benefit of Jeff L.) to measure the rise time of a pulse generator which is claimed to be able to achieve 40ps. The... Read more »

DAC1209 error; charge injection?

May 24, 2020, 1:17 pm

Anyone seen this before? Seems like I'm getting a huge spike (relatively speaking -- about 3 LSB) when flipping bit 11 (going from >= 0x800 to Read more »

RCA 18538A: Searching for data sheet

  [ 2 ]
May 24, 2020, 11:20 am

Dear experts, The two power semiconductors RCA 18538A which are used in an electronic ballast are blown. Unfortunately I haven't been able to find any data for those parts; therefore I even don... Read more »

Flux density

May 24, 2020, 4:47 am

Reviewing stuff I forgot during lockdown, this is one thing I never got. H is amp-turns/meter, and having distance in the denominator suggests that it is also a measure of flux density (but withou... 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 »