Loading…

Flash Player 9 (or above) is needed to view presentations.
We have detected that you do not have it on your computer. To install it, go here.

Like this presentation? Why not share!

Class c amplifier_ct

on

  • 1,942 views

 

Statistics

Views

Total Views
1,942
Views on SlideShare
1,942
Embed Views
0

Actions

Likes
0
Downloads
29
Comments
0

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

Class c amplifier_ct Class c amplifier_ct Presentation Transcript

  • Single Tuned Class C RF Amplifier Communication Theory Practical Roll. No. 2423,2425,2434.
  • Class C Amplifier Vce Ic Class A Class AB Class B Class C
  •  
  • About 0.3V
  • Class C Biasing The Class C amplifier has a negative voltage at the base, and zero volts at the emitter. The Base-Emitter junction is reverse biased The transistor will turn on at a signal voltage of 4.7V. The transistor will only conduct a small pulse through to the collector output. Amplifier is very efficient but has very little usefulness….
  • -12V -5V 5V
  • Class C Application Collector resonant circuit responds to an impulse by ‘ringing’ at its resonant frequency. This is like pushing someone on a swing. A sharp short push each trip allows the swing to oscillate back and forth at its resonant frequency Collector impulses occur by design at the resonant frequency of the tank circuit. Resonant circuit continues to ring and restores the sine wave at the output Class C Amplifier is used in radio/RF applications and is also called a ‘tuned’ amplifier .
  • Ringing Of Tank Circuit Resonant (tank) circuit
  • -12V -5V 5V 12V