Common electron yuan the action of parts of an apparatus

 Do embedded, do not say how to have a good command of to circuit, but should understand circuit at least, know effect, through the project that author half an year will come to do, sum up the action of component of a few electrons, the hope is helpful to everybody
1. The action of resistor, n of here leave out word, you understand.
2. Capacitance: It is filter wave action commonly, the frequency that capacitance jumps over small filter wave is taller, use commonly 103, the capacitance of 104, in the item that the author makes of right key-press, with the capacitance of 104, in new Tang Xin piece in, do not need to be eliminated artificially shake, the effect is better (103 delegates, 10*10^3 Pf) .
3. Dynatron: This is yuan of more commonly used parts of an apparatus, in digital circuit, what use commonly is switch action. Use dynatron namely guide connect and end characteristic, come switch circuit, the number that uses in author project is in charge of even if control a number to destroy and shine of the canal with dynatron, if use the IO mouth of chip to output directly,mix high low, will control digital canal, so when output is low, fill electric current will be very big, time grew, chip will be burned-out.

4. Smooth Ou: What arrive since is the action of segregation, such saying that have bit of theory, let us see the principle picture of smooth Ou:

We can see, if 1 and 2 guide connected, so 1 can shine with the diode between 2 feet, so the light that give out can make 3 and also guide between 4 feet, control circuit B so namely with A of a circuit, and circuit A and circuit B do not have any relations however, had the effect of segregation, the RS485 communication function that the author says before, those who use is 5V voltage, and other circuit, be like infra-red blast off receive, those who use is 3.3V, so smooth Ou became indispensable spirit implement, it is two circuit do not need any connection completely, but have can work each other at the same time.
5. Inductance: Electromagnetic relation believes authority is clear, the action of inductance is in namely circuit inchoate moment, when everything is not stable still, if there is electric current to pass in inductance, regular meeting produces as contrary as voltaic direction faradic () of law of Faraday electromagnetism induction, when after circuit ran period of time, everything was stabilized, electric current changed without what, electromagnetism induction also won’t produce electricity, stabilized at that time, won’t appear paroxysmal misfortune, assured the safety of circuit thereby, resemble sprinkler, the comparison that turns as a result of obstruction at the beginning is slow, tend slowly later gentle.
Inductance still has an action to connect dc namely, block communication, this those who use is not much, I am not quite clear also specific how to use, etc used share with everybody again.
6. Magnetism bead: Magnetism bead has very high resistor rate and magnetism conductance, his equivalent establishs ties at resistor and inductance, but resistance and inductance value change along with frequency. He has character of better wave of high frequency filter than common inductance, in high frequency when present block sex, can maintain taller impedance inside quite wide frequency range so, improve result of wave of frequency modulation filter thereby, had used on aether net chip.