2014
DOI: 10.1016/j.mejo.2013.10.007
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A THD-reduction high-efficiency audio amplifier using inverter-based OTAs with filter-output feedback

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Cited by 8 publications
(8 citation statements)
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“…15 V B is a biasing voltage source linearity. 38 The resistive-feedback configuration, on the other hand, has both low input and output impedances, thus it is suitable for operation as a transimpedance amplifier. Increasing the gain also degrades the linearity of the overall amplifier as it results in intermodulation distortion.…”
Section: Previous Workmentioning
confidence: 99%
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“…15 V B is a biasing voltage source linearity. 38 The resistive-feedback configuration, on the other hand, has both low input and output impedances, thus it is suitable for operation as a transimpedance amplifier. Increasing the gain also degrades the linearity of the overall amplifier as it results in intermodulation distortion.…”
Section: Previous Workmentioning
confidence: 99%
“…Other modifications to the conventional inverter-based amplifier can be found in Atef et al, Atef, and Ni et al [33][34][35][36] The optimization of this amplifier topology was investigated quantitatively in Park et al 37 The open-loop configuration has high input and output impedances, thus it is suitable for operation as a transconductance amplifier. 38 The resistive-feedback configuration, on the other hand, has both low input and output impedances, thus it is suitable for operation as a transimpedance amplifier. These two amplifiers in cascade along with a CMOS inverter were proposed as a broadband amplifier in Nakajima et al 18 The cascading of the transconductance and transimpedance amplifiers is known as the Cherry-Hooper amplifier.…”
Section: Previous Workmentioning
confidence: 99%
“…Perangkat elektronik seperti televisi LED, Notebook, smartphone, dan perangkat portabel lainnya sebagai contoh perkembangan teknologi elektronik [1], [2]. Setiap perangkat elektronik tersebut dilengkapi sistem penguat audio yang mengharuskan perangkatnya mempunyai bentuk yang dapat disesuaikan, konsumsi daya rendah, efisiensi tinggi dan linieritas yang baik.…”
Section: Pendahuluanunclassified
“…Setiap perangkat elektronik tersebut dilengkapi sistem penguat audio yang mengharuskan perangkatnya mempunyai bentuk yang dapat disesuaikan, konsumsi daya rendah, efisiensi tinggi dan linieritas yang baik. Perkembangan teknologi seperti ini, menjadi tantangan besar untuk menghadirkan penguat audio dengan persyaratan tersebut [2], [3]. Penguat audio analog yang dikategorikan sebagai kelas A, B, AB, mempunyai efisiensi kurang dari 80% dan membutuhkan daya yang tinggi [4].…”
Section: Pendahuluanunclassified
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