Novel VDBA based universal filter topologies with minimum passive components

Albrni, Musa Ali; Nanoelectronics, Selangor; Faseehuddin, Mohammad; Sampe, Jahariah; Ali, Sawal Hamid Md

doi:10.36909/jer.v9i3b.8781

Cited by 4 publications

(1 citation statement)

References 12 publications

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“…The presets are named very low, low, normal, high, and very high that generate 45 bpm, 60bpm, 78 -83bpm, 160bpm, and 220 bpm respectively. Before being shown on the ECG signal scope, the produced signals will go via a sample rate converter to match the output sample rate [19]. The sample rate converter has a tolerance of 0.01 and a sample output rate of 200Hz.…”

Section: Wherementioning

confidence: 99%

Smart Monitoring System for Chronic Kidney Disease Patients based on Fuzzy Logic and IoT

Maniam¹,

Sampe²,

Jaafar³

et al. 2022

IJACSA

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A Chronic Kidney Disease (CKD) monitoring system was proposed for early detection of cardiovascular disease (CVD) and anemia using Fuzzy Logic. To determine the heart rate and blood oxygen saturation, the proposed model was simulated using MATLAB and Simulink to handle ECG and PPG inputs. The Pan-Tompkins method was used to determine the heart rate, while the Takuo Aoyagi algorithm was used to assess blood oxygen saturation levels. The findings show that the ECG recorded using the CKD model has all of the characteristics of a typical ECG wave cycle, but with reduced signal degradation in the 0.8-1.3mV region. The heart rate signal processing yielded findings between 78 and 83 beats per minute is within the range of the supplied heart rate. Takuo Aoyagi's pulse oximeter simulation generated the same findings. For real-time verification, the proposed model was implemented in hardware using ESP8266 32-bit microcontroller with IoT integration via Wireless Fidelity for data storage and monitoring. In comparison with the Fuzzy Logic simulation done on MATLAB and Simulink, the CKD monitoring device has 100% accuracy in patient status detection. The CKD monitoring system has an overall accuracy of 99% in comparison with a commercial fingertip pulse oximeter.

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Section: Wherementioning

confidence: 99%

Smart Monitoring System for Chronic Kidney Disease Patients based on Fuzzy Logic and IoT

Maniam¹,

Sampe²,

Jaafar³

et al. 2022

IJACSA

Self Cite

View full text Add to dashboard Cite

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A Novel High-Performance Voltage Differencing Buffered Amplifier

Gupta,

Antony,

Sharma

et al. 2024

IETE Journal of Research

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Voltage Differencing Buffered Amplifier-Based Novel Truly Mixed-Mode Biquadratic Universal Filter with Versatile Input/Output Features

et al. 2022

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In this paper, a first-of-a-kind mixed-mode universal filter employing three VDBAs and three passive components, is proposed. The filter operates in all four modes and provides all five filter responses, namely voltage-mode (VM), current-mode (CM), trans-impedance-mode (TIM), or trans-admittance-mode (TAM). Additionally, the same filter topology can also work as a CM single-input-multi-output (SIMO) filter. A state-of-the-art comparison of various ‘voltage differencing’ variants of the voltage differencing buffered amplifier (VDBA)-based SIMO/MISO (single-input-multi-output/multi-input-single-output)-type biquad filters further highlight the significance of the presented research. In the proposed no passive component matching is required for generating the filter responses. The filter circuit also provides inbuilt tunability of the quality factor independent of the pole frequency. The non-ideal frequency dependent gain and component sensitivity analyses of the filter were also performed. The Silterra Malaysia 0.18μm process design kit (PDK) is employed to design and validated the proposed VDBA-based filter using the Cadence design software. The simulation results closely follow the theoretical predictions. To further verify the practical feasibility of the proposed filter, an experimental evaluation is also completed. The VDBA-based filter is implemented using off-the-shelf operational transconductance amplifiers Intersil CA3080, Texas Instruments LF356 op-amp, and Analog Devices AD844s. The filter is designed for a characteristic frequency of 100 kHz. The time and frequency domain measurement results indicate the proper functioning of the filter.

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Novel VDBA based universal filter topologies with minimum passive components

Cited by 4 publications

References 12 publications

Smart Monitoring System for Chronic Kidney Disease Patients based on Fuzzy Logic and IoT

Smart Monitoring System for Chronic Kidney Disease Patients based on Fuzzy Logic and IoT

A Novel High-Performance Voltage Differencing Buffered Amplifier

Voltage Differencing Buffered Amplifier-Based Novel Truly Mixed-Mode Biquadratic Universal Filter with Versatile Input/Output Features

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