Capacitor (Kondensator)

a capacitor is basically made ​​of two metal plates are mutually parallel to each other and between the two metals are contained material which is often called the dielectric insulator. In Science Electronic components such as resistors capacitors and transistors are very important and often dominating in an electronic device.
Capacitor capacitor / language trends in Indonesia Elco is a device that can store energy in electric field, by collecting an internal imbalance of electric charge. Condenser has a unit called farads. Discovered by Michael Faraday (1791-1867). Condenser is now also known as the "capacitor", but the word "condenser" is still used today. First named by an Italian scientist Alessandro Volta in 1782 (from the Italian condensatore), regarding the capability of the device to store an electric charge is higher than other components. Most languages ​​and countries that do not use the English language still refers to the Italian word "condensatore", such as condensateur French, Indonesian and German or Spanish Condensador Capacitor.

Condenser which has two legs and two poles of positive and negative and has a liquid electrolyte and are usually shaped tube


Coat condenser (having positive and negative poles) on electronics scheme.

While most of the other types of capacity value is lower, does not have a positive or negative pole on his legs, mostly flat round brown, red, green and others such as tablets or shirt button that is often called a capacitor (capacitor).



Coat capacitor (not having poles) on electronics scheme. But the habits and conditions and the articulation of the language of each country depends on people who more frequently mentioned. Now the habits of people is just saying one of the most dominant names in use or more frequently heard. At present, the condenser is often called a capacitor (capacitor) or on the contrary that the science of electronics is abbreviated with the letter (C).

Units in the condenser is called farads. One farad = 9 x 1011 cm ² surface area, which means these pieces to 1 farad together with 106 microfarads (μF), a 1 μF = 9 x 105 cm ².
Units of square centimeters (cm ²) are rarely used because it is less practical, widely used units are:
• 1 farad = 1 million μF (micro farad)
• 1 μF = 1 million pF (pico farad)
• 1 μF = 1.000 nF (nano-farad)
• 1 nF = 1000 pF (pico farad)
• 1 pF = 1.000 μμF (micro-micro farad)
As for how to expand the capacitor or capacitors by road:
1. Arranged in layers.
2. Extending the surface variables.
3. Using materials with great penetrating power.

Condenser fixed (fixed capacity value can not be changed) Capacitor electrolyte (Electrolite Condenser = Elco) Capacitor variables (capacity value can be changed) Voltage
Voltage (sometimes referred to as voltage) is the electrical potential difference between two points in the electrical circuit, and is expressed in units of volts. This scale measures the potential energy of an electric field resulting in a flow of electricity in an electrical conductor. Depending on its electrical potential difference, an electrical voltage can be considered as extra low, low, high or extra high.

Kinds - kinds of capacitors:

1. fixed capacitor

type:

a. condenser paper

b. mica condenser

c. ceramic condenser

d. Polyester condenser

e. condenser movie

f. electrolytic condenser

2. capacitor is not fixed / variable

type:

a. Varco (variable condensator)

b. Trimmer condenser

c. condenser discharge switch (CDS)

How to Calculate a Series Capacitor


Series of large-capacity capacitor array



In the picture below we can see a series consisting of three capacitors. The three capacitors are mounted in series






To find the capacitor value or replacement value of the three capacitors capasitansi can we use the equation:










1/Ct = 1/C1 + 1/C2 + 1/C3

Given:

C1 = 10 p

C2 = 20 p

C3 = 30 p

Then:

1/Ct = 1 / 10 + 1 / 20 + 1 / 30

1/Ct = 6 / 60 + 3 / 60 + 2 / 60

1/Ct = 11/60

Ct = 60/11 = 5:45 p

After we calculate carefully can we know that the total value of the series capacitor is at 5:45 p.

How to Calculate the Capacitor Parallel

Picture below three capacitors mounted in parallel.









To find the value of total capasitansi we can use a combination of series capacitor equation and the equation of parallel capacitor.




Capacitor equation serial: 1/Ct = 1/C1 + 1/C2 + .........+ 1/Cn

Parallel Capacitor equation: Ct = C1 + C2 + .... + Cn

From the two equations above we can calculate the value capasitansi mengkombinasikanya for replacement of the serial-parallel capacitor circuit as shown in the picture. Here is a combination of the two equations above:

Given:

C1 = C2 = C3 = C4 = C5 = 10p

Then:

1/Cs = 1/C3 + 1/C4

1/Cs = 1 / 10 + 1 / 10

1/Cs = 2 / 10

Cs = 10 / 2 = 5P


Cp = C2 + CS1

Cp = 10 + 5 = 15P


1/Ct = 1/C1 + 1/C5 + 1/Cp

1/Ct = 1 / 10 + 1 / 15 + 1 / 10

1/Ct = 3 / 30 + 2 / 30 + 3 / 30

1/Ct = 8 / 30

Ct = 30 / 8 = 3.75P

Description:

* Cs = Capacitor Series
* Cp = Parallel Capacitor
* Ct = total Capacitor

Once we combine the two equations, we can find capasitansi total value of the series of serial-parallel capacitor combination is. The value we get from the calculation is about 3.75P.

Variable Capacitors (Varco)

Varco or variable condensator what yah? What is meant by Varco is a capacitor whose value can be changed by rotating / set rotornya. This type of condenser capacitance value can be set by hand, if arrangements can be made ​​at any time by the operator (there is a key regulator) if the arrangement made ​​with a screwdriver called trimmer capacitors. Varco is widely used in radio, both the radio transmitter and receiver.
To a radio receiver Varco function is to find the frequency of plane wave transmitter. Varco value varies, according to its usefulness.