The RRB JE 2025 syllabus is designed differently for each branch. The subjects mainly cover core engineering topics along with general awareness, arithmetic, and reasoning based on the specific ...

Normally, when you want a low DC voltage from the AC line, you think about using a transformer of some kind. [RCD66] noticed that an AC monitor meter must have some sort of power supply but had no ...

Circuits are the building blocks of modern electronics, and ensuring they function correctly is an essential part of any project involving electricity. One of the challenges faced by engineers and ...

Basic tester looks ok , except read voltage analog calibrated function should be used with esp32. Bluedisplay tester looks ok Both need some tweaks for PWM resolution and other variable consistency ...

In this page I present my approach to building a Zener diode tester. There are of course several DIY versions on the internet, but I have a few requirements... I am often confronted with switching ...

The latest in advanced electronics requires space-saving, low-cost methods for connecting and testing circuitry. Why are test points a crucial element in developing a successful circuit? Types of test ...

Abstract: This paper introduces an In-Circuit Reliability Test System (ICRTS) for SiC MOSFETs and diodes that can test a large number of high-voltage devices by emulating real life voltage and current ...

The circuit presented here is compact and handy for measuring the voltage rating of a Zener diode instantly. To check a Zener diode, it is connected across a DC power supply with a suitable resistor ...

Basic tools such as DMMs and oscilloscopes may be the only test gear needed for small printed circuit board repairs, but it pays to know when automated systems would be a better choice. Alan Lowne | ...