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Results tagged with frequency-modulation
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user 39440
For questions relating to frequency modulation (FM). This is a scheme where a carrier is modulated by varying its frequency to carry information.
3
votes
1
answer
3k
views
Simple FM transmitter [duplicate]
How does this circuit perform Frequency modulation. I know the LC generates the carrier frequency. How does the transistor act as a varicap to perform FM. Which part of the circuit acts as a varicap …
- 367
0
votes
1
answer
4k
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FM transmitter feedback capacitor [closed]
Why is a capacitor connected across the collector-emitter of the transistor? How does this capacitor prevent decay of LC oscillations?
- 367
5
votes
3
answers
9k
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Capacitor between emitter and collector
Considering the circuit below.:
What is the purpose of capacitor C5? I know it provides positive feedback to sustain the LC oscillations, but how does this work ?
- 367