Εμφάνιση αναρτήσεων με ετικέτα Ηλεκτρονικά. Εμφάνιση όλων των αναρτήσεων
Εμφάνιση αναρτήσεων με ετικέτα Ηλεκτρονικά. Εμφάνιση όλων των αναρτήσεων

Σάββατο 4 Απριλίου 2026

Three Phase Rectification

 

Three-phase rectification is the process of converting a balanced 3-phase AC power supply into a smooth and stable DC supply crucial for high-power applications like motor drives and EV chargers using solid state diodes or thyristors

Παρασκευή 27 Μαρτίου 2026

Measure Capacitor ESR with an Oscilloscope and Function Generator



Build your own variable 0-60V 0-30A DC Adjustable bench Power Supply


Build A Simple VFD or Variable Frequency Drive!


Inverting Operational Amplifier (1)


The Inverting Operational Amplifier configuration is one of the simplest and most commonly used op-amp topologies

Soldering Tutorial for Beginners: Five Easy Steps (video)


Ferrite toroid calculation:



Precision 1Hz Clock


This precision clock uses just two ICs and one junction field-effect transistor (JFET) in conjunction with a commonly available crystal and a handful of other passive components.

Πέμπτη 26 Μαρτίου 2026

Grid Tie Inverter Schematic and Principals of Operation



WHAT IS IT? Grid-interactive or grid tie inverter (GTI) is an electronic device that converts direct current (DC) voltage to alternating current (AC) voltage and that can operate in parallel with the electric utility grid. The DC voltage normally comes from photoelectric panels or energy storage batteries. GTIs allow interconnection of renewable energy systems with the grid. The power processing circuits of a GTI have similar working principle as that of a conventional stand-alone DC-AC SMPS.

Κυριακή 10 Αυγούστου 2025

Build an Analog ESR Meter With Moving-Coil Meter Precision

I was always envious of my friend’s analog ESR meter that allowed him to check and find bad capacitors while they were still in circuit. The particular meter he had is no longer available, which meant doing some research to understand how they worked and to come up with my own version.

Κυριακή 13 Ιουλίου 2025

Calculating mains frequency power transformers



In this page a simple method of calculating mains frequency closed-core power transformers. This is intended for home brewing, repairing and modifying transformers. Please remark that even if this method and some equations could be generalized, only classical cores composed by steel plates are taken into account.

Inductor basics - What is an inductor?




How to Calculate Ferrite Core Transformers

 

Calculating ferrite transformer is a process in which engineers evaluate the various winding specifications, and core dimension of the transformer, using ferrite as the core material. This helps them to create a perfectly optimized transformer for a given application.

Τετάρτη 30 Απριλίου 2025

SPWM overmodulation (Υπερ-διαμόρφωση SPWM)


Ενα πολύ χρήσιμο (αν και περισσότερο θεωρητικό...) άρθρο, για αυτούς που ασχολούνται με τα Ηλεκτρονικά Ισχύος (Power Electronics).

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