Main Page Sitemap

Last news

Alcohol and Al Capone
Now lets go really see a small sample of what was said back in the day. Al Capone was born on January 17th, 1899 in Brooklyn..
Read more
Familial Influence
Samples were mounted on slides in 20 glycerol, visualized at magnification of 20 on Axioplan 2 (Zeiss Carl Zeiss, Thornwood, CA and captured using AxioCam (Zeiss)...
Read more

Most viewed

Division 1 Football Decision

In 1996, Conference USA (C-USA formed the previous year by the merger of the non-football Metro and Great Midwest Conferences, also began sponsoring football. In 1946


Read more

After The First Deeath

The hijackers objective is to gain freedom for their homeland. Innocent and ignorant of the plan of operation, but also educated and trained in military procedure.


Read more

Childhood preservation

Since the very first days of Uzbekistan's independence, a great deal of attention has been given to the legal, economic and social protection of motherhood and


Read more

Cuban Missile Crisis - Close Call for Nukes

In the early afternoon, he met with EX-comm. Washington, his brother Robert continued intense discussions with EX-comm. On the same day, another U-2 flight revealed the


Read more

History Of The Stock Market

(Blume 23) there they made a deal that went on to be known as the Buttonwood Agreement. That is hard to believe considering almost everybody has


Read more

Jefferson vs. Jackson

Demontrae Jefferson, who has found his season beginning with a hot streak. He entered office a legend, and during the next eight years it only grew.


Read more

Understanding The Basic Fundamentals of Electronics


understanding The Basic Fundamentals of Electronics

- see Transformers - The Variac. Our circuit should look like this: We can use Ohms Law in the exact same way to determine the reistor value that will give us the desired current value: therefore: plugging in our values: solving for resistance: So, we need a resistor value of around. Some Wiring Symbols The conventions I use for wires crossing and joining are marked with a star - the others are a small sample of those in common use, but are fairly representative. Heres what our device looks like all put together. In the two circuits below, I used 10mH and 100F as the reactive components. Because of a phenomenon called 'phase shift' (see below) these RC circuits can only be calculated using vector mathematics (trigonometry) or 'complex' arithmetic, neither is particularly straightforward, and I will look at a simple example only - otherwise they will not be covered here. Unlike them a GTO has a fully controllable switch that can be tuned off and on by a third lead.e.

The series and parallel circuits are shown with one end connected to earth/ ground - again, although this is a common arrangement, it is by no means the only way these configurations are used. As the frequency increases, even the thin sheets will start to suffer from losses, so powdered iron (a misnomer, since it is more commonly powdered steel) cores are used. In the case of a high pass filter, the signal is halved each time the frequency is doubled. The sliding contact allows the output voltage to be varied from 0V AC, up to about 260V (for a 230V version). Any 'stray' impedance is pure resistance for a tank circuit at resonance. Figure.2 shows one of the effects of phase shift in a capacitor - the current (green trace) is out of phase with respect to the voltage (red trace). Voltage is also commonly measured in millivolts (mV and 1,000 mV. Because the inductive reactance increases with increasing frequency (as opposed to capacitive reactance which falls as frequency increases the configurations for low pass and high pass are reversed. Weve chosen a resistor value that is high enough to keep the current through the LED below its maximum rating, but low enough that the current is sufficient to keep the LED nice and bright. Caps in parallel have a value that is the sum of the individual capacitances. Wirewound resistors can tolerate severe overloads for a short period, but I prefer to keep the absolute maximum to somewhat less than 250 - even for very brief periods, since they may become open circuit from the stress (and/ or thermal shock) rather than temperature.

Electronics, basics : Fundamentals of Electricity - dummies



understanding The Basic Fundamentals of Electronics

German Basic Law: Common with European Constitutions, Analysis on Basics of Mutual Funds, Understanding The Nature of Time,


Sitemap