mybuickskill6979 said:
yeah Transistors are confusing me!! i guess i'll just have to put it to bed until i get a book. cause it seems the more i read the more confused i get. here's the main thing i;d like to know and what im trying to grasp. in a switching type situation.
the main supply goes to?
A. collector
b. Base
c. emitter
the switch current(that opens and closes the circuit) goes to?
A. collector
b. Base
c. emitter
when switching current is applied the electricity travel out of?
A. collector
b. Base
c. emitter
i under stand that the two currents come together i just don't understand where everything goes? but i think i'm gonna drink a beer and forget about it till i get a book.
The Problem is Most Technical descriptions are Confusing.
Much Easier, Consider an NPN Transistor.
First Ground the Emitter. Or connect to Battey Negative.
Now, As you Increase the Positive Current going into the Base, it Flows to the Emitter and it Greatly Increases the Current flow from the Collector to the Emitter.
How Much depends on the "HFE" Gain of the Transistor.
(A Limiting Resistor is a good idea going to the Base, so you Don't go Extreme on input current to the base.)
Also your Load between the supply and the Collector must Not Exceed the Current capability of the Transistor.
Hope this Simplifies it for you.
TOO MUCH BEER Doesn't Help.
Better Yet, Build a Simple Circuit on a Breadboard.
A Potentiometer into the Base and a Small Light Bulb on the Collector. Than play with it.
(Slight Increase in Base Current and the Light will go Brighter.)