What are the various types of distortions in any power amplifiers? Ex…
Previous year question for Electronic Circuits-I.
Question
What are the various types of distortions in any power amplifiers? Explain the harmonic distortion. Define the distortion components $D_1, D_2, D_3, D_4$ etc hence find the distortions factor D. Derive the expression for output power in terms of power delivered at fundamental frequency and distortion factor. A sinusoidal signal $Vs = 1.95 \sin 400t$ is applied to a power amplifier. The resulting output current is $I_o = 12 \sin 400t + 1.2 \sin 400t + 0.9 \sin 1200t + 0.4 \sin 1600t$. Find
i. Total harmonic distortion
ii. Percentage increase in power because of distortion.
- Year: 2022
- Subject: Electronic Circuits-I