Qualitative analysis of small-signal modified Sziklai pair amplifier

A small-signal modified Sziklai pair (complementary Darlington pair) amplifier is proposed with an additional biasing resistance in the circuit. The proposed amplifier produces significantly high voltage gain with narrow bandwidth. Poor response of conventional Darlington pair amplifiers at higher f...

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Veröffentlicht in:Indian journal of pure & applied physics 2012-04, Vol.50 (4), p.272-276
Hauptverfasser: Pandey, Beena, Srivastava, Susmrita, Tiwari, Satyendra Nath, Singh, Jitendra, Shukla, Sachchida Nand
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Sprache:eng
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Zusammenfassung:A small-signal modified Sziklai pair (complementary Darlington pair) amplifier is proposed with an additional biasing resistance in the circuit. The proposed amplifier produces significantly high voltage gain with narrow bandwidth. Poor response of conventional Darlington pair amplifiers at higher frequencies is found to be absent in the proposed amplifier circuit. Variations in voltage gain as a function of frequency and different biasing resistances, bandwidth and total harmonic distortion of the amplifier have also been studied. Proposed amplifier may be useful for various analog communication applications.
ISSN:0019-5596