Large signal tuned amplifier
Class C power amplifier
Class C amplifier is tuned amplifier which can amplify only a narrow
band of frequencies around the center frequency.The conduction angle is
less than 180°.The output contain lots of harmonics and these are
eliminated by using tuned circuit as load
\(C_{c}\),R and Base emitter diode acts as a clamping circuits which clamps the input signal towards negative .Hence the transistor conduct only for a short duration during each positive peak of input signal .the output current \(I_{c}\) appears in the form of pulses .But the CE voltage will sinosuidal because of tank circuit \(V_{CE}\) will be 180° out of phase with \(V_{BE}\)
Power Dissipation is less
MathJax example
Class C power amplifier
\(C_{c}\),R and Base emitter diode acts as a clamping circuits which clamps the input signal towards negative .Hence the transistor conduct only for a short duration during each positive peak of input signal .the output current \(I_{c}\) appears in the form of pulses .But the CE voltage will sinosuidal because of tank circuit \(V_{CE}\) will be 180° out of phase with \(V_{BE}\)
Power Dissipation is less
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