In the electronics of potency they get together, the electricity and the control, the control has to see with the characteristics of stable state and system dynamics of closed bond, the potency has to see with the static and rotary team for the generation, broadcast and distribution of the electrical energy. The electronics has to see with the devices and circuits of solid state for the prosecution of signs that expire with the targets wished in the control.Electronics of potency: circuits, devices and applications For Muhammad H. Rashid, page 1, 2004.
From the approach of the Physics to atomic level an atom was verified just it was containing so much protons in his nucleus and in his contiguous zone it was containing electrons, considering her to be electrically neutral, but it experiences the following phenomenon, where the electrons if they exchange about the nucleus in different levels in his orbit, since it fills in a fixed way of electrons, making possible to share valency by means of the electrons. The target of this subject-matter to report and to contribute concept of the fundamental base of the electronics and to know on her, since in the majority of our electrical devices of our hearth they are electronic.
Circuit recutters of only one level In general, the recutting circuits use the part of the wave of entry that is superficially or for a certain level of reference (cutters of only one level) or the part of the entry understood between two chosen levels (recutters of two levels). And so, the functioning of the recutting circuit positive represented in the figure, can be summed up in a following way, the tension of exit than that of entry while the tension of reference is bigger than the entry (diode polarized inversely); the exit remains fixed to the tension of reference when the tension of entry overcomes that of reference (diode polarized directly).Fundamental electronics: devices, circuits and systems For Michael M. Cirovic, pages 323 and 324, 1995.
important Aspects in reference of the functions of the electronic ones:
Rectification.
Amplification.
Oscillation.
Commutation and temporización.
Rectification
The conversion of alternating current turns her in continua, thanks to the diodes, which are semiconductors, where it is a type of crystal of a portion of type n and other one type p, with the sense of doing an union n-p, in her he exercises a tension of inverse polarization, when it designates a potential difference of negative form of the side p, this one causes that one removes the electrons of the side of n, in the place of the most nearby region of union it turns into an insulating cash, what he wants to say in a systematical way establishes a current in the union for the electrons located in n, this owes that by means of the diode just to allow to spend one of two directions of the alternating current, then to carry the conversion out in one continues.
Amplification
In this case we have the application of the transistor, to be able to amplify by means of him, this active component of an electronic circuit is a semiconductor, where at least it is provided with three contacts or electrical points.
The transistor of effect field of outlying force, which contains three zones, the fountain, the emptying which can have a conductivity well is n or p, the space between these fulfilled by a movie of silicon oxide, where this one creates an ambience oxidizer for his warming.
Oscillation
to produce a sign of alternating current, in case of the sign of feedback, being this print, what facilitates to reinforce the sign of beginning, so that the oscillations happen is necessary the radiorreceptores.
Have the following process:
Observe a syntonized oscillator (A) and a crystal oscillator of quartz (B), the feedback is positive, by means of an instigator of the circuit, which in turn this one with the collector connected magnetically to the instigator dl circuit, because it is syntonized so that the current of the this collector it increases, achieving that the distinguishing one of the potency that circulates in her, provokes the increase in the current of the collector. On the other hand we have the following anomaly, after certain time there falls down the tuning that affects the base potency, reducing later the current in the above mentioned collector, who also fond of the voltage of the feedback, then to begin a new cycle.
Commutation and temporización
In this case we are, so much as the semiconductors and the transistors, it can be used as switches inside an electrical circuit, it goes to depend of according to the class of the transistor, in such a way that the issuer and the collector allows to control the current between, it would be like a mechanism of support inside the circuit. Also the use of a bacterium resides, so that the current is still expressed by this one, turn in alternate, in a line of significant voltage, since to the moment to trump the flow of main current of the circuit, I it alternated the one that generates the bacterium, in place of the transistors they are adapted in operating with current it continues, because they can ignite in half suitable or syntonized cycle, which allows him to extinguish in another way of change his polarity.
Stand out with the following thing, it is important to research and to spread, by means of the context mentioned previously, the difference of the electricity and the electronics, which to same judgment the use of a few series of components, of transistors, collector, bacteria, they can lead and direccionar the control of the flow of voltage, apart from the conversion of the alternating current in continua, in circuit synchronized, where the amplification of a sign by means of transistors begins, when this one provides a tension of direct polarization, which is of low intensity in the union of the base – issuer and the base - collector.
Bibliography
fundamental Electronics: devices, circuits and systems For Michael M. Cirovic, pages 323 and 324, 1995.
Electronics of potency: circuits, devices and applications For Muhammad H. Rashid, page 1, 2004.