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Difference between supply voltage and input voltage?
Consider a Common Emitter amplier circuit, there'll be two inputs present in which one is applied at the base of the transistor[input voltage] and other at collector[supply voltage,+Vcc]
I want to know 1)what is difference between that two voltages ? 2)need to use both in the same circuit? 3)why input voltage of AC and the supply voltage is DC? Help me please... |
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This is homework, and should be handled of in the homework department.
But I'll give you some hints to answer your own question : First you have to understand what is a Common Emitter amplifier circuit, and what the specfics of such a circuit are. "there'll be two inputs present in which one is aplied at the base of the transistor[input voltage] and other at collector[supply voltage,+Vcc]" Incorrect : at transistor A base the input voltage is applied. At the other transistor B base is a dc voltage for control. The common emitter transfers the signal from one transistor to the other over the resistor R to earth. Collector A is connected to supply. Output is at collector B, over resistor RC. Draw this out : make a circuit diagram as I described. LEARN what is where and WHY it operates they way it does. Success ! :) |
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This is homework, and should be handled of in the homework department.
But I'll give you some hints to answer your own question : First you have to understand what is a Common Emitter amplier circuit, and what the specifics of such a circuit are. "there'll be two inputs present in which one is aplied at the base of the transistor[input voltage] and other at collector[supply voltage,+Vcc]" Incorrect : at transistor A base the input voltage is applied. At the other transistor B base is a dc voltage for control. The common emitter transfers the signal from one transistor to the other over the resistor R to earth. Collector A is connected to supply. Output is at collector B, over resistor RC. Draw this out : make a circuit diagram as I described. LEARN what is where and WHY it operates they way it does. Success ! :) |
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