Low-frequency Small-signal Amplifier with BJT-JFET Hybrid Unit in Sziklai Pair Topology

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Low-frequency Small-signal Amplifier with BJT-JFET Hybrid Unit in Sziklai Pair Topology

June 1, 2021 Engineering 0

To build small-signal amplifiers, a PSpice Model of BJT and JFET with their hybrid combination in Sziklai pair topology is presented. With a maximum voltage gain of 30.41, the suggested amplifier will enhance low amplitude signals in the frequency range of 3.035Hz to 93.808Hz. THD of 2.44 percent and highest current gain of 43.05 This feature looks into the possibilities of applying the proposed amplifier circuit in EEG, seismometers, and undersea undersea communication circuits. The qualitative behavior of the suggested circuit is also explored to evaluate how it performs in various contexts, such as temperature dependence, noise behavior, the influence of adjusting biasing resistances and capacitors, small-signal analysis, and so on.

Author (s) Details

SachchidaNand Shukla
Department of Physics and Electronics, Dr. Ram Manohar Lohia Avadh University, Faizabad, Ayodhya, 224001, UP, India

Pratima Soni
Department of Physics and Electronics, Dr. Ram Manohar Lohia Avadh University, Faizabad, Ayodhya, 224001, UP, India.

Dr. Geetika Srivastava
Department of Physics and Electronics, Dr. Ram Manohar Lohia Avadh University, Faizabad, Ayodhya, 224001, UP, India

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