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Capacitor

Capacitor Inductor Calculations

Last Updated on September 29, 2022 by Swagatam 4 Comments

function of I

Inductors can be imagined as the opposite of capacitors. The main difference between a capacitor and an inductor is that a capacitor carries a protective dielectric between its plates, which inhibits the conduction of current across its terminals. Here it acts like an open circuit. On the other hand the inductance of an inductor is […]

Filed Under: Electronics Theory Tagged With: Calculations, Capacitor, Inductor

Capacitor Leakage Tester Circuit – Find Leaky Capacitors Quickly

Last Updated on September 3, 2020 by Swagatam 12 Comments

capacitor test

This simple capacitor tester is capable of testing leaky electrolytic capacitors in the range of 1uf to 450uf. It can test large start and run capacitors as well as 1uf miniature capacitors rated at 10v. Once you understand the timing cycle, you can test down to 0.5uf and up to 650uf. By Henry Bowman How […]

Filed Under: Meters and Testers Tagged With: Capacitor, Capacitors, Find, Leakage, Leaky, Tester

Multiple Battery Charger Circuit using Dump Capacitor

Last Updated on July 6, 2019 by Swagatam 61 Comments

astable

In this article I have explained how to build an automatic battery charger circuit using dump capacitor concept for self detecting and charging a multiple set of batteries. The idea was requested by Mr. Michael. Circuit Objectives and Requirements My name is Michael and live in Belgium. I found your site thru google during my […]

Filed Under: Battery Charger Circuits Tagged With: Battery, Capacitor, Charger, Dump, Multiple

Calculating Capacitor Charge/Discharge Time using RC Constant

Last Updated on April 1, 2020 by Swagatam 4 Comments

RC

Capacitor charge and discharge periods is usually calculated through an RC constant called tau, expressed as the product of R and C, where C is the capacitance and R is the resistance parameter that may be in series or parallel with the capacitor C. It may be expressed as shown below: τ = R C […]

Filed Under: Electronics Theory Tagged With: Calculating, Capacitor, Charge, Discharge, RC, Time

Understanding Capacitor Codes and Markings

Last Updated on February 8, 2025 by Swagatam 45 Comments

1

In this article I will comprehensively explain everything regarding how to read and understand capacitor codes and markings through various diagrams and charts. The information can be used for identifying and selecting capacitors correctly for a given circuit application. By Surbhi Prakash Capacitor Codes and associated Markings The various parameters of the capacitors such as […]

Filed Under: Electronics Theory Tagged With: Capacitor, Codes, Markings, Understanding

Calculating Filter Capacitor for Smoothing Ripple

Last Updated on July 13, 2024 by Swagatam 57 Comments

In the previous article I explained about ripple factor in power supply circuits, here we continue and evaluate the formula for calculating ripple current, and consequently the filter capacitor value for eliminating the ripple content in the DC output. The previous post explained how a DC content after rectification may carry the maximum possible  amount […]

Filed Under: Electronics Theory Tagged With: Calculating, Capacitor, Filter, Ripple, Smoothing

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