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When focusing on rc helicopters microcontrollers and wireless systems, you need to get to know basics, then you can follow procedures for great projects. In case you did not know, the capacitor is an important component of every radio channel device. A capacitor consists of two metal plates separated by an insulator called a dielectric. The dielectric, which can be air, paper, mica, plastic or other, is very thin, so that the two conducting plates, which call armor, stay as close as possible to each other.
The rc helicopters capacitor value in terms of capacity, measured in farads, and the greater will be this when bigger the facing surfaces of the plates and the smaller the thickness of the dielectric.
The capacitor in DC
If we connect a capacitor to a source of direct current (DC), no flow of electrons through it, due to the presence of the dielectric, which is seen as an insulating material. However, there will be a charge accumulation in the armor, particularly of electrons in the armor that is connected to the negative of the source, and holes in which you connect the positive. This effect is known as the dielectric polarization.
If we disconnect the power supply of rc helicopters capacitor, we see that the accumulation of cargo holds, because the charges of different signs that are located in each of the armatures are attracted to each other. If you join both terminals, loads of armor circulates to the other through this bridge and the capacitor remains in the initial conditions.
If instead of connecting the capacitor to a DC power source, we connect it to the AC, we see that the polarization of the plates to vary the pace of the direction of the current from the source. In the positive half armor is polarized one way, and during the negative half cycle must be polarized in reverse. The dielectric is forced to change its polarization at the same rate, creating tensions in the. If the frequency is very high, the dielectric will be unable to follow changes at the same speed, and its polarization decrease. It follows that the capacitance of rc helicopters capacitor decreases as frequency increases.
Dielectric
The material used in the rc helicopters dielectric is one of the key characteristics of the capacitor, as will determine the maximum operating voltage (without allowing it to pierce), and capacity, which largely depends on slim can cut the material and how good to keep loads of armor apart.
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