Don't understand that.Yes, you can skip R1 and R2
What's the point of biasing here if you cant set the operating point?? pls explainDon't understand that.
How will the transistor be biased without those resistors?
The point is, you still need to set the transistor bias current.What's the point of biasing here if you cant set the operating point?? pls explain
In the present setup, what happens to the transistor "bias" on the -ve part of the carrier wave? It will cutoff. (Hopefully, that Base-Emitter junction will survive the almost -15 Volts reverse voltage). That transistor will not operate much on the Linear region.Don't understand that.
How will the transistor be biased without those resistors?
How do you know it's Class C without knowing the signal levels?In the present setup, what happens to the transistor "bias" on the -ve part of the carrier wave? It will cutoff. (Hopefully, that Base-Emitter junction will survive the almost -15 Volts reverse voltage). That transistor will not operate much on the Linear region.
Putting it simply, that transistor will conduct only on the Positive part of the carrier input, it will be cut off on the Negative part of the cycle. And it will do that whether R1 and R2 is present or not.
As I said in the begining of my first post, that transistor is a Class C amplifier for the Carrier, and AM is acheived by varying the Collector voltage. The R1-R2 bias has a meaning ONLY if the Carrier amplitude is Less that the bias voltage. Else it will be Class B or C operation.
Bias Resistors are known.How do you know it's Class C without knowing the signal levels?
• It is a good example of an AM transmitter.
- Is this circuit (in its original form) even a suitable circuit for AM modulation? If yes, pls explain all the biasing calculations!
- What suitable modification can I do to make it more suitable for AM modulation?
- Which kind of circuit can be a better transistor-based AM modulator? I can think of Class A based circuit! Correct me if I am wrong!
- Should I challenge the "course" authorities to make changes to the existing circuit?
This is a circuit for Transistor Based AM modulation.
Here, How can I find the values of the biasing resistors (R1 and R2) to set the Q point in mid??
Pls, explain all the calculations to do while designing this circuit!
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