CLASS C power amplifier , circuit diagram ,characteristics ,advantage and disadvantage:-

Class c power amplifier is biased to operate less than 180° of the given input signal cycle of the tuned circuit in the output. 

However it will provide a full cycle of the output signal for the fundamental frequency of the tuned circuit of the output. The use of such amplifier is limited for a fixed frequency as occurs in the communication circuit. 

 

Some special short points:- 

• Quiescent (Q) points are below cut off region.
• Increase in efficiency (>90%).
• CLASS c power amplifier has higher distortion. 
• It has less conducting angle. 

      <180°,(<100°)     

      [60°]

• Circuit is formed with the help of RFC ( radio frequency coil )and tank circuit.

 circuit diagram:-

Characteristics of CLASS C power amplifier  :-

For construction of CLASS C power amplifier we use a NPN type transistor,a RFC,a inductor and a capacitor.

Advantage:- 

• CLASS C power amplifier is used in application of RF oscillator and RF amplifier. 
• It is Used in high frequency. 
• It is  used for FM transmitter. 
• It is used in Booster amplifier. 
• It's size is very small.
• It uses very less component. 
• Circuit diagram is very simple. 
• Low in cost. 

Disadvantage:- 

• It has very low linearity. 
• It is not suitable for audio application. 
• It mixes a lot of noise.