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Charge Conservation Technique to Reduce Dynamic Power of Class AB Amplifier for LCD using LTSpice

by Sana Qureshi, Saima Ayyub Khan, Paresh Rawat
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 111 - Number 4
Year of Publication: 2015
Authors: Sana Qureshi, Saima Ayyub Khan, Paresh Rawat
10.5120/19527-1163

Sana Qureshi, Saima Ayyub Khan, Paresh Rawat . Charge Conservation Technique to Reduce Dynamic Power of Class AB Amplifier for LCD using LTSpice. International Journal of Computer Applications. 111, 4 ( February 2015), 31-36. DOI=10.5120/19527-1163

@article{ 10.5120/19527-1163,
author = { Sana Qureshi, Saima Ayyub Khan, Paresh Rawat },
title = { Charge Conservation Technique to Reduce Dynamic Power of Class AB Amplifier for LCD using LTSpice },
journal = { International Journal of Computer Applications },
issue_date = { February 2015 },
volume = { 111 },
number = { 4 },
month = { February },
year = { 2015 },
issn = { 0975-8887 },
pages = { 31-36 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume111/number4/19527-1163/ },
doi = { 10.5120/19527-1163 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T22:46:59.740894+05:30
%A Sana Qureshi
%A Saima Ayyub Khan
%A Paresh Rawat
%T Charge Conservation Technique to Reduce Dynamic Power of Class AB Amplifier for LCD using LTSpice
%J International Journal of Computer Applications
%@ 0975-8887
%V 111
%N 4
%P 31-36
%D 2015
%I Foundation of Computer Science (FCS), NY, USA
Abstract

A complementary differential amplifier which has RAIL TO RAIL feature with offset cancellation technique to enhance high color depth and high-resolution liquid crystal display (LCD) drivers, is proposed. The dual complementary differential pairs are used to obtain RAIL TO RAIL input-output swing and an offset canceling capability. Both offset voltage and injection-induced error, due to mismatch of device and charge injection, are greatly reduced. The offset cancellation and charge conservation, which is used to reduce the dynamic power consumption, are operated during the same time slot so that the driving period does not need to increase. It is implemented using LTSPICE simulation.

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Index Terms

Computer Science
Information Sciences

Keywords

CMOS Class AB amplifiers Rail-to-Rail Push-pull stage Complementary differential pair transconductance amplifiers.

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