Valerie, Theodora and Garinto, Dodi and Nugroho, Prapto and Syahriar, Ary and Ma'arif, Eka Samsul (2021) Relaxation oscillator using closed-loop dual comparator for biomedical applications. In: 2021 3rd International Conference on Electrical, Control and Instrumentation Engineering (ICECIE). Institute of Electrical and Electronics Engineers (IEEE), pp. 264-268. ISBN 978-1-6654-0447-1
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Abstract
People's rising concerns about health have fueled research into high-performance biomedical devices and circuits, such as sensors and implantable systems on a chip. It is important for these biomedical devices to operate at the same low frequency to treat certain organs and diseases. Thus, the clock generator needs to be able to provide low frequency clock pulses with minimal size and high reliability. These constraints elevate power consumption and production cost within the circuit design to key parameters. One promising candidate is relaxation oscillator which has good on-chip compatibility, and superior frequency stability. This paper proposes a novel relaxation oscillator using closed-loop dual comparator. A frequency in the band of 50Hz to 2.5kHz can be generated by replacing the value of resistors and capacitor in all possible combinations. The simulation and experimental result confirm that closed-loop dual comparator-based relaxation oscillator provides low frequency with lower cost and more simplicity due to fewer components.
Item Type: | Book Section |
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Additional Information: | Presented in "The 9th International Conference on Information and Communication Technology (ICoICT)" held on 03-05 August 2021 in Yogyakarta, Indonesia |
Uncontrolled Keywords: | relaxation oscillator; 555 timer IC; comparator; square wave generator; Costs; Production; Generators; Stability analysis; System-on-chip; High frequency; Transistors |
Subjects: | 600 Applied sciences & technology > 610 Medicine & health 600 Applied sciences & technology > 620 Engineering > 621 Applied Physics |
Divisions: | Universitas Al-Azhar Indonesia (UAI) > Fakultas Sains dan Teknologi (FST) Universitas Al-Azhar Indonesia (UAI) > Fakultas Sains dan Teknologi (FST) > Teknik Elektro |
Depositing User: | Rifda Jilan |
Date Deposited: | 07 Sep 2022 06:23 |
Last Modified: | 07 Sep 2022 06:37 |
URI: | http://eprints.uai.ac.id/id/eprint/1958 |
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