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Analysis the role of supply voltage and load capacitor in small-signal MOSFET amplifiers

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Bibliographic Details
Main Author: Mohd Iskandar Jalaludin
Other Authors: Mohammad Nuzaihan Md Nor (Advisor)
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis 2008
Subjects:
Amplifiers
MOS amplifier
Metal oxide semiconductor
MOSFET amplifier
Dirrect current amplifiers
Capacitors
Integrated circuits
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/2002
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spelling my.unimap-20022008-10-15T03:37:37Z Analysis the role of supply voltage and load capacitor in small-signal MOSFET amplifiers Mohd Iskandar Jalaludin Mohammad Nuzaihan Md Nor (Advisor) Amplifiers MOS amplifier Metal oxide semiconductor MOSFET amplifier Dirrect current amplifiers Capacitors Integrated circuits Access is limited to UniMAP community. The main objective of this project is to investigate the role of supply voltage and load capacitance in the performance of small-signal MOS amplifier with the PSpice simulation for the Common Source, Common Gate and Common Drain configurations. Particular emphasis has been given to addressing basic issues involving MOSFET amplifiers, rather than modifying the design, and hence standard amplifiers have been considered as the topic of study. The study uncovers that while keeping all other circuit parameters constant, the dc bias voltage (VDD) plays an important role in creating large voltage gain as it sets the condition for the transistor to be in the saturation mode. This is the region of operation of the transistor where linear amplification is achieved. [1] The influence of load capacitor CL has been studied by connecting the output of MOS amplifier to a load. The input impedance of the load circuit is the combination of a capacitance in parallel with a resistance. It is found that the load capacitance is important for determining the frequency range for a constant amplifier gain. In general, the lower the load capacitance, the wider is the midband frequency range. At the high frequency end of the spectrum, the gain drops under the influence of CL, which is consistent with the PSpice simulation results for small-signal amplifiers. At low frequency end of the spectrum, the midband gain decreases because coupling capacitors and bypass capacitors do not act as perfect short circuits.[ 1 ] 2008-09-09T03:17:01Z 2008-09-09T03:17:01Z 2008-03 Learning Object http://hdl.handle.net/123456789/2002 en Universiti Malaysia Perlis School of Microelectronic Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Amplifiers
MOS amplifier
Metal oxide semiconductor
MOSFET amplifier
Dirrect current amplifiers
Capacitors
Integrated circuits
spellingShingle Amplifiers
MOS amplifier
Metal oxide semiconductor
MOSFET amplifier
Dirrect current amplifiers
Capacitors
Integrated circuits
Mohd Iskandar Jalaludin
Analysis the role of supply voltage and load capacitor in small-signal MOSFET amplifiers
description Access is limited to UniMAP community.
author2 Mohammad Nuzaihan Md Nor (Advisor)
author_facet Mohammad Nuzaihan Md Nor (Advisor)
Mohd Iskandar Jalaludin
format Learning Object
author Mohd Iskandar Jalaludin
author_sort Mohd Iskandar Jalaludin
title Analysis the role of supply voltage and load capacitor in small-signal MOSFET amplifiers
title_short Analysis the role of supply voltage and load capacitor in small-signal MOSFET amplifiers
title_full Analysis the role of supply voltage and load capacitor in small-signal MOSFET amplifiers
title_fullStr Analysis the role of supply voltage and load capacitor in small-signal MOSFET amplifiers
title_full_unstemmed Analysis the role of supply voltage and load capacitor in small-signal MOSFET amplifiers
title_sort analysis the role of supply voltage and load capacitor in small-signal mosfet amplifiers
publisher Universiti Malaysia Perlis
publishDate 2008
url http://dspace.unimap.edu.my/xmlui/handle/123456789/2002
_version_ 1643787527303200768
score 13.214268

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