electrical-engineering

I am a research scholar working on a scintillation detector coupled with a SiPM for radiation/cosmic muon measurements. I am using a MicroFJ-60035 SiPM Silicon Photomultipliers (SiPM), High PDE and ...

Development boards usually hide all the interesting engineering under a neat enclosure. Most of us connect a USB cable, upload some code, and start building projects without thinking much about what's happening underneath. But every now and then, it's worth taking a closer look at the hardware itself. That's exactly what I did with the ESP32-2424S012C , a compact ESP32-C3 development board that c…

I am reading a 24-bit I²S MEMS microphone with an ESP32. The MEMS model is a cheap module, purporting to use a INMP441, but I cannot verify that. https://www.farnell.com/datasheets/1824785.pdf My ...

Electric fields control the flow of charge in modern electronic chips, powering computers, smartphones and other devices. But as chips continue to shrink, this approach is reaching its physical limits.

I'm an absolute noob, this is my first PCB. The purpose is to carry an SMD sensor and provide a connector. The board supposed to be a standard 1.6 mm FR-4, 1 oz, two layer. Sized it as 11 mm x 16 mm ...

I would like to know if there is a quick way to determine which are source and drain terminals. I know I can run a circuit like this and if it produces a sensible i-v curve, you got the orientation ...

I have very basic EE knowledge and I want to take a proper course when I get time, here's the issue: We have 20 kW of LiFePO4 batteries (16s 51-56 VDC) and we built a direct current bakery oven with ...

Scientific Reports, Published online: 17 June 2026; doi:10.1038/s41598-026-56975-8 Design of compact multi stub resonator based flexible monopole antenna for 5G wearable applications in N77 and N78 bands

From IEC-62368 for signals below 30kHz the creepage distance for pollution degree 2 and material group IIIa,IIIb (FR-4 boards are IIIa) at 40V is specified to be 1.1mm. We have a connector that has ...

Hello, I have simulated a situation where we have 3 differential lines as shown below. port 1 has no termination so he has to affter SDD23 . From sdd23 we se resonances spaces 1.23GHz one from another. substrate er=4.1 the traxes are 50mm long. How can I link the distance between the resonance... Read more

A good work network helps people grow in the electrical trade. It helps electricians, contractors, helpers, engineers, and job leaders meet the right people. These links can bring more job leads, safer work, and better advice. They also help people keep up with code changes, new tools, and new work. This matters because the trade...

Understanding ADCs and Using the ADS1115 with Raspberry Pi Learn how analog signals become digital data, and how to connect the ADS1115 ADC to a Raspberry Pi for high-precision sensor measurements. Introduction One of the first surprises many Raspberry Pi users encounter is that the Pi has no built-in Analog-to-Digital Converter (ADC) . This means that while the Raspberry Pi excels at digital com…

My skill level: N00B. It's my first PCB design :) TL;DR: I have a LiPo running a 555+buzzer circuit. I want to connect my LiPo charger using DC barrel plug. The Catch: I want to cut off the main ...

Understanding concepts like electric potential and energy transfer involves more than simply connecting wires and observing what happens in a circuit. To explain why a... The post 3 Hands-On Experiments Using the Go Direct® Voltage Probe appeared first on Vernier .

What does the "emitter" of an IGBT emit? Shouldn't it be called a drain or a collector as drains away or collects holes?

Student and faculty researchers in Penn State’s Department of Electrical Engineering presented their work at the 2026 Electrical Engineering Student Research Poster Competition, which took place on April 6 in the Electrical Engineering West Building. Among the presenters were awardee teams from the department’s new EEntrepreneurship programs, who showcased their progress toward commercializing th…

Every programmer has, at some point, fallen into a logical trap. While building a simple console-based electrical circuit simulator in C++, I stumbled upon a classic boolean logic mistake that completely broke my code. Here is how to build this useful engineering tool and, more importantly, how to avoid the infinite loop trap! ⚡ The Goal: An Equivalent Resistance Calculator In physics, calculatin…

I tried to simulate a circuit from MIT Power Electronics Lecture 2, and this is the simulation when it has reached periodic steady state. I added ground, original circuit didn't have one. Yellow line - v(vy, vz) - should be voltage across inductor L2. I know that the negative... Read more

I want to build something that include fans. Long story short, I am thinking of buying 8 computer case fans, 3d print a housing and install the case fans to create a specific airflow corridor. The DIY ...