I took a break from trying to understand this a little while ago, but recently took it up again. I understand the explanations of some of the behavior but not the result: (i.e., an NPN transistor behaving like two diodes connected at the anodes thus, the base-collector is reverse biased and the base-emitter is forward biased. I understand the concept that the action that makes the transistor so great is the ability to control a larger curent with a smaller. Where I get lost is HOW it amplifies.
An analogy I've often seen is to think of the base as a lever standing in the way of the collector-emitter. The more force is used to push on the base "lever" more current flows between collector-emitter...
So for NPN... Electrons passing through the base-emitter junction (forward biased) looking for holes, saturate the base. When the collector voltage is higher than the emitter and the base, those electrons flow through the collector-emitter circuit. Generally speaking is that right? Once again, I'm at a loss as to how this amplifies... Could anyone offer an easy to understand explanation. Every text I've searched loses me right there.
An analogy I've often seen is to think of the base as a lever standing in the way of the collector-emitter. The more force is used to push on the base "lever" more current flows between collector-emitter...
So for NPN... Electrons passing through the base-emitter junction (forward biased) looking for holes, saturate the base. When the collector voltage is higher than the emitter and the base, those electrons flow through the collector-emitter circuit. Generally speaking is that right? Once again, I'm at a loss as to how this amplifies... Could anyone offer an easy to understand explanation. Every text I've searched loses me right there.