Quote:
Originally Posted by whcirobotics
because i am 15 and in grade 11 we have yet not started current and etc.
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Are you trying to say that your age affects your intelligence? I hope not.
Quote:
Originally Posted by whcirobotics
There are three parts to the transistor:
(1) BASE
==> It is where some kind of signal, or small current is entered(microphone for example)
(2) COLLECTOR
==> It is connected to a power source/supply, like a battery or power outlet
(3) EMITTER
==> It is always the output, the amplified current
So if i make a small sound in the base, and i have connected the collector to a outlet, then that sound will get amplified and be outputted in the emmiter.
For it to act as a switch it is basically, putting forth more than 5V current will turn the collector gate ON, and less than 5V would get it into saturation mode or OFF.
Just need someone to confirm this so i dont tell the class and teacher something utterly wrong  |
Almost but not exactly.
Base is essentially right. It can be a small signal (like a microphone) or a large signal (like the power source voltage or ground). Note that with a small signal (an AC signal like a microphone), you need to change the DC voltage associated with it to be sure the transistor is in its "linear" region, otherwise it wants to act like a switch. This is called "Biasing" the transistor.
Collector and Emitter change roles depending on what type of transistor (PNP or NPN) and what you need to accomplish with the circuit.
You'd be correct in writing or saying:
(2) COLLECTOR
==> It is usually connected to a power source, like a battery or power outlet
(3) EMITTER
==> It is usually the output, the 'amplified' current flowing through the transistor. It can also be connected directly to ground in some circuits, the signal being tapped off at the collector.
The rest seems accurate.