Studi Tentang Penguat Cascade Dua Tingkat Menggunakan JFET

Tjahjo Kartiko Dirgantoro • Handry Khoswanto • Hany Ferdinando
Journal article Jurnal Teknik Elektro Universitas Kristen Petra • September 2006 Indonesia

Abstract

Cascade amplifier has more than one stages on the circuit configurations. The purpose of cascade amplifier using JFET is to get larger voltage gain also with large input impedance. Except CS-CS cascade amplifier, cascade amplifier using JFET never studied in every literature. This research focuses on the two stage cascade amplifier using JFET for nine circuit configurations, i.e. CS-CS, CS-CD, CS-CG, CD-CS, CD-CD, CD-CG, CG-CS, CG-CD, and CG-CG. From those nine configurations, the interest is to see gain characteristic and to compare one another. This paper uses JFET 2N5457 type with specification IDSS = 5 mA and VGS(off) = -6 V also specified one of DC bias parameter in the active region that is IDQ = 2 mA. The voltage gain is measured by giving voltage input from 50 mV (Vp-p) until 1000 mV (Vp-p) at 1 KHz. There are some recommendations, one of them is that the CS-CS cascade amplifier is amplifier with the largest voltage gain.

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Jurnal Teknik Elektro Universitas Kristen Petra

Jurnal Teknik Elektro Universitas Kristen Petra is published biannually, in May and September, by... see more