Knowledge

When evaluating ripple, it is usually performed around the two components of ripple voltage and ripple current. In most applications, ripple is a circuit condition that engineers want to minimize. For example, in an AC-DC converter that converts AC power to a stable DC output, every effort is made to avoid a phenomenon in which AC [...]

There are a number of parameters of importance beyond the basic capacitance and capacitive reactance when using electrolytic capacitors. When designing circuits using electrolytic capacitors it is necessary to to know their properties. so what are the properties of electrolytic capacitors ? 1.ESR Equivalent series resistance:   Electrolytic capacitors are often used in circuits where current levels [...]

In Most Electrical and Electronics troubleshooting and repairing, we face this trouble that how to test electrolytic capacitor ? Is it Good, Bad, Short or Open?  Below we will introduce three methods to test that a Capacitor is Good, Bad, Open, Dead, or Short. Method 1. Check & Test a Capacitor By Analog Multimeter. 1.Make sure the suspected capacitor is [...]

First, Ceramic and electrolytic capacitors are two types of capacitors used in electronic circuits. The ceramic capacitors, the two conductive plates are separated by a ceramic material , however the electrolytic capacitors, the two conductive plates are separated by an electrolyte and a metal oxide layer. Second, ceramic capacitors don‘’t have polarity, their terminals can be interchanged.They are suitable for both ac [...]

An aluminum electrolytic capacitor, usually simply called an electrolytic capacitor (e-cap), is a capacitor whose anode (+) consists of pure aluminum foil with an etched surface, covered with a uniformly very thin barrier layer of insulating aluminium oxide, which operates as a dielectric. The electrolyte, which covers the rough surface of the oxide layer, operates as [...]