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Write 5 pages thesis on the topic the use of tuned amplifier. The frequency was increased at the input and observed at the output, and then sketched.From calculations, the resonant frequency was 1.56

Write 5 pages thesis on the topic the use of tuned amplifier. The frequency was increased at the input and observed at the output, and then sketched.

From calculations, the resonant frequency was 1.56 X 105 Hz, the circuit’s Q-factor for the tank circuit was 888.7 and the bandwidth was 176.1 Hz. Moreover, from the graphs, at the input frequency equal to the resonant frequency, i.e. fr =fin, the voltage across the output resistor was maximum hence maximum voltage observed.

An Amplifier that amplifies a narrow band of frequencies or specific frequency is known as the tuned amplifier. The tuned amplifiers are utilized in the amplification of radio or high frequencies. this is because the radio frequencies are usually single and the tuned circuit allows their selection with efficient amplification (Godse and Bakshi, 2010).

Tuned amplifiers, however, are not suitable when amplifying the audio frequencies since they are made of a mixture of frequencies ranging from 20 Hz to 20 kHz. hence, they not single. The tuned amplifiers are utilized in television and radio circuits where they are also known as upon to handle radio frequencies (Kal, 2013). Figure 1 shows a simplified tuned amplifier circuit. In the circuit, instead of having a load resistor, a parallel tuned circuit is implemented in the collector. The tuned circuit’s impedance is strongly dependent on frequency. The circuit avails very high or elevated impedance at resonant frequency. consequently, there is minimum impedance at all remaining or other frequencies. In case the signal possesses the same frequency as the LC circuit’s resonant frequency, the large amplification emanates due to the LC circuit’s high impedance at this frequency.

In case of signals with varied frequencies are availed at the input of the tuned amplifier, the circuit will select and then strongly amplify the signals of the resonant frequency and reject all others. Hence, such amplifiers are very vital in radio receivers in terms of signal selection from a particular broadcasting station from a&nbsp.pool of signals of other frequencies available at the receiving aerial.

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