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Articles from All About Circuits

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Fan Choosing

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

Hello, I would like to design control station, and I didn't decided cooling fan. My case size is 535 x 360 x H 225 mm. And I will put the fan on the large side and inlet height is 175...

WTD588D-U sound module to TDA7297 amp equals big distortion

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

Hi: This is my first post here, so I hope you'll bear with me. I'm attempting to connect a sound board (built around a WT588D sound module) to an amp powered by a TDA7297 Dual Bridge Amplifier, but the resulting...

4-20mA Analog sensor to 0-3.3V Digital conversion

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

I have a question about signal conversion since I am pretty new to this. I want to translate a 4-20mA signal into a 0-3.3V digital signal. I have done a lot of research and came up with a circuit, but...

code

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

kindly helping me to solve this: differential between PETFIE & RETURN for pic18f4580 thx...

Resistance of transmission lines ?

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

I'm doing a practice test and for some HV trans. line it lists only 0.05 ohm /km (0.08ohm/mile). Is that anywhere near right ? I'm used to little tiny wires with maybe a DCR of 0.018ohm/meter (0.006ohm/ft) for AWG18 for...

Envelope Attenuator

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

Hey y'all I'm trying to attenuate a 5v envelope in a way that I'm not sure is possible in the analog realm. I've attached a photo to help explain my intentions. Ultimately, when the pot is fully CW, I want...

Microchips package surface partially melted. Do you recognize the model? It is a temperature/humidity sensor.

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

Hello everyone, I'm trying to find out the model of the two chips on a temperature/humidity sensor. As you can see the surface of the chips have partially melted. I think I found the model of one of them (the...

Error importing INA199A3 (Current Sense monitor) in LTspice-reg

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

Hi For my project, I need to import a model INA199A3 (Current Sense monitor) in LTspice. In the TI website, they have mentioned as TINA-TI Spice Model. While importing the model, I got the message as shown below. View attachment...

I don't like this new forum "look"

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

That is all.

Converting Transfer Function Into Circuits

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

I am given a transfer function in Modern Control system and are asked to form a real circuit respect to the transfer function as well as the characteristics such as rise time, etc. The transfer function are given as [...

material that reduce the voltage over distance

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

I am working on spcail gyro sensor and i need for it conductive that make the elctric voltage lower when the the distance of the conductive is big for exmple in 30cm lbetween the minos and plus the voltage will...

Making sense of Generator wiring configuration Parallel Zig Zag

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

Dear all, I'm looking at a 3-phase, 12-wire generator for single phase operation, and trying to make sense of how the potential wiring configurations differ and the math behind how they produce the "split-phase" voltage. As I see it, I...

Transistor information

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

While doing a research on an electronic circuit, i found out that transistor pins may vary depending on manufacturer. Is this true and how?

How to change electric scheme with Tevenen generator

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

First of all I am from Serbia and I don't know English terminology well. This is my homework http://tnt.etf.bg.ac.rs/~si1oe/Domaci zadaci/Prvi_domaci_zadatak_2019_2020.pdf Ignore all the text or translate it on google translate(but it is not necessary).Ignore part in blue box right of...

3*2 Multiplier

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

Where's a good place to start with modern digial stuff ?

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

I know a lot of 1st/2nd year EE, and some basics of digital electronics. I have an ardunio, but don't really know any programming. What's an earlier, more basic point to start with ? Should I play around with 1980's...

Interleaved active clamp flyback converter

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

as per the figure we provides a dc voltage as a input to the interleaved active clamp flyback converter block, provide a PWM signal to the MOSFET which is in interleaved block for switching purpose. PWM signal is generated by...

Nema 17 vs nema 23 for 3d printer

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

Hey guys im looking into making a CNC router that will also double up as a 3d printer. I'm wondering what should I use for my motors? is the Nema 17 going to be strong enough for a router? Also...

Error in Atmel Studio when uploading to board

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

So, I have been programming microcontrollers on my ATMEGA 2560 board via Atmel Studios for some time now. and never had any problems building and uploading to the board before. but this time, when im trying to upload to the...

Reinforcement Learning in machine learning

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

Hello, I was watching some videos on inverted pendulum ( cart-pole balancing system) and wanted to know what exactly does it try to learn. Does it only try to tune PID values after learning or does it have another algorithm...

AC current limiting

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

The context is a kettle supplied at 220v AC from an inverter. The kettle is rated at 850 watts, resulting in a current of about 75amps on the 12v side. I would like a circuit I can plug in between...

LM3914 input affected by LED outputs

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

I built the circuit shown here with the intent of turning on successive LEDs as the input to the LM3914 Pin 5 rose. And that does happen. However, as I connect successive LEDs the input signal to pin5 is definitely...

GFCI tester with adjustable hot-neutral current imbalance

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

Hello. I'm trying to build a GFCI tester that can test both 120VAC and 240VAC outlet. It must start with a 2mA current imbalance between hot and neutral for 7 seconds. Then increase the current imbalance in steps of 1mA...

Isolating digital and analog grounds in Kinetis K60 Series of NXP

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

How will it be ensured that digital and analog grounds are isolated for K60 series controller when power supplies for analog and digital supplies are separate. Diagram is attached for clarity. How to connect these two grounds with each other?...

Micro-current electrical stimulation device

From www.allaboutcircuits.com 4 weeks ago in BlogsNews

Introduction This is a project to build a micro-current electrical stimulation device. These are also called tDCS devices and are similar to MENS devices. They are not much like the common TENS devices which use much higher... Micro-current electrical stimulation...

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