- #1
sanado
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Hey guys, sorry to keep posting things about the NPN transistor but i think I am starting to understand it. I was just wondering if you could confirm these facts for me:
1. An external powersupply is needed to turn the transistor on (by forward-biasing the emitter-base junction), or by using a resistor infront of the base to control the voltage flow into it
2. Once the transistor is on, a signal that is 'fed' into the base-emmiter will be amplified and come out of the emmitter-collector junction
3. If no signal is being 'fed' into the base, current still flows across emitter-collector and therefor out of the output
4. More of a question really, what sets the queisecent point of the transistor. Is it done by the manufacturer or by an element of the circuit?
1. An external powersupply is needed to turn the transistor on (by forward-biasing the emitter-base junction), or by using a resistor infront of the base to control the voltage flow into it
2. Once the transistor is on, a signal that is 'fed' into the base-emmiter will be amplified and come out of the emmitter-collector junction
3. If no signal is being 'fed' into the base, current still flows across emitter-collector and therefor out of the output
4. More of a question really, what sets the queisecent point of the transistor. Is it done by the manufacturer or by an element of the circuit?
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