scholarly journals Multi-Function Active-Only High-Order Current-Driven Filter

2000 ◽  
Vol 23 (3) ◽  
pp. 157-161
Author(s):  
Muhammad Taher Abuelma'atti ◽  
Husain Abdullah Alzaher
Keyword(s):  
Output Voltage ◽  
High Order ◽  
Input Current ◽  
Operational Amplifiers ◽  
Output Current ◽  
Current Output ◽  
Circuit Topology ◽  
Operational Transconductance Amplifiers ◽  
Order Filter ◽  
Transconductance Amplifiers

A new multi-function high-order current-driven filter is proposed. The filter uses only operational amplifiers, and operational transconductance amplifiers (OTAs). Without using any external passive elements, a variety of high-order input-current/output-current and/or input-current/output-voltage responses can be realised without changing the circuit topology and without any matching or cancellation conditions. The parameters of the high-order filter responses can be electronically tuned by adjusting the bias currents of the OTAs.

scholarly journals Active-Only Sinusoidal Oscillator with Electronically-Tunable Fully-Uncoupled Frequency and Condition of Oscillation

2001 ◽  
Vol 24 (4) ◽  
pp. 233-241 ◽  
Author(s):  
Muhammad Taher Abuelmaatti
Keyword(s):  
Second Generation ◽  
Operational Amplifiers ◽  
Current Conveyors ◽  
Oscillator Circuit ◽  
Operational Transconductance Amplifiers ◽  
Sinusoidal Oscillator ◽  
Condition Of Oscillation ◽  
Transconductance Amplifiers ◽  
Electronically Tunable

A new active-only sinusoidal oscillator is presented. The oscillator circuit uses two internally compensated operational amplifiers, two plus-type second-generation current conveyors and three operational transconductance amplifiers. The proposed circuit enjoys the attractive features of totally uncoupled frequency and condition of oscillation, low sensitivities, electronic tunability and integratability.

AN IMPROVED MULTIDEVICE INTERLEAVED BOOST CONVERTER WITH NOVEL MULTIPLEX CONTROLLER FOR FUEL CELL

2016 ◽  
Vol 79 (1) ◽  
Author(s):  
Muhamad Norfais Faisal ◽  
Azah Mohamed ◽  
M. A. Hannan ◽  
Wan Ramli Wan Daud ◽  
Edy Herianto Majlan
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Output Voltage ◽  
Boost Converter ◽  
Input Current ◽  
Simulation Studies ◽  
Output Current ◽  
Output Capacity ◽  
Interleaved Boost Converter ◽  
Current Ripple

Mass commercialization of fuel cells (FC) and its usage in transportation requires that the FC technology to be competitive with regard to performance and cost, while meeting efficiency and emissions targets. Therefore, fuel cell output current ripple that may shorten FC lifespan, worsen FC efficiency and reduce the FC output capacity need to be addressed. In this paper, an improved multi-device interleaved boost converter (MDIBC) with novel multiplex controller topology is designed to further reduce the input current and output voltage ripples, without increasing the number of MDIBC switching devices. The Matlab/Simulink behaviour model of the improved MDIBC with novel multiplex controller and conventional MDIBC circuit are developed in the simulation studies. The proposed improved MDIBC design is then compared with the conventional MDIBC and its performance is verified. 

Input-current/output-voltage ripple mitigation in the double dual boost converter

2018 ◽  
Vol 162 ◽  
pp. 150-160 ◽  
Author(s):  
J.E. Valdez-Resendiz ◽  
J.C. Rosas-Caro ◽  
J.C. Mayo-Maldonado ◽  
G. Calderon-Zavala
Keyword(s):  
Output Voltage ◽  
Boost Converter ◽  
Input Current ◽  
Current Output ◽  
Voltage Ripple

scholarly journals Digitally Programmable Active-R Function Generator

1994 ◽  
Vol 17 (1) ◽  
pp. 49-56 ◽  
Author(s):  
Muhammad Taher Abuelma'Atti
Keyword(s):  
Operational Amplifiers ◽  
Function Generator ◽  
Operational Transconductance Amplifiers ◽  
Digital Input ◽  
Generator Circuit ◽  
Digitally Programmable ◽  
Transconductance Amplifiers

A new digitally programmable active-R function generator circuit is presented. The circuit uses four operational amplifiers, two operational transconductance amplifiers, and resistors. The circuit can provide sinusoidal, square, and triangular waves with digitally programmable frequency. The frequency is linearly proportional With the digital input.

Independent Control of Input Current, Output Voltage, and Capacitor Voltage Balancing for a Modular Matrix Converter

2015 ◽  
Vol 51 (6) ◽  
pp. 4623-4633 ◽  
Author(s):  
Toshiki Nakamori ◽  
Mahmoud A. Sayed ◽  
Yuma Hayashi ◽  
Takaharu Takeshita ◽  
Shizunori Hamada ◽  
...  
Keyword(s):  
Output Voltage ◽  
Matrix Converter ◽  
Input Current ◽  
Independent Control ◽  
Current Output ◽  
Voltage Balancing ◽  
Capacitor Voltage

scholarly journals Measurements of Mobile Blockchain Execution Impact on Smartphone Battery

Data ◽  
2020 ◽  
Vol 5 (3) ◽  
pp. 66 ◽  
Author(s):  
Yulia Bardinova ◽  
Konstantin Zhidanov ◽  
Sergey Bezzateev ◽  
Mikhail Komarov ◽  
Aleksandr Ometov
Keyword(s):  
Human Computer Interaction ◽  
Output Voltage ◽  
Short Range ◽  
Discharge Process ◽  
Output Current ◽  
Output Data ◽  
Lte Networks ◽  
Current Output ◽  
Consensus Algorithms ◽  
Distributed Ledger

This is a data descriptor paper for a set of the battery output data measurements during the turned on display discharge process caused by the execution of modern mobile blockchain projects on Android devices. The measurements were executed for Proof-of-Work (PoW) and Proof-of-Activity (PoA) consensus algorithms. In this descriptor, we give examples of Samsung Galaxy S9 operation while a broader range of measurements is available in the dataset. Examples provide the data about battery output current, output voltage, temperature, and status. We also show the measurements obtained utilizing short-range (IEEE 802.11n) and cellular (LTE) networks. This paper describes the proposed dataset and the method employed to gather the data. To provide a further understanding of the dataset’s nature, an analysis of the collected data is also briefly presented. This dataset may be of interest to both researchers from information security and human–computer interaction fields and industrial distributed ledger/blockchain developers.

scholarly journals Versatile Active Biquad Using FTFNs

1998 ◽  
Vol 20 (4) ◽  
pp. 241-248 ◽  
Author(s):  
Muhammad Taher Abuelma'atti ◽  
Husain Abdullah Al-zaher
Keyword(s):  
Output Voltage ◽  
Transfer Functions ◽  
Output Current ◽  
Independent Control ◽  
Circuit Topology ◽  
High Impedance

A universal active biquad using the four-terminal floating nullors (FTFNs) is presented. The propsed circuit uses two FTFNs, three capacitors and two resistors. The proposed circuit has three input voltages and can simultaneously provide a high-impedance output current and/or an output voltage. Without changing the circuit topology, the output voltage can realise lowpass, highpass, bandpass, notch and allpass transfer functions and the output current can realise bandpass and highpass transfer functions. The proposed circuit enjoys low active and passive sensitivities and independent control of the parametersωoandω0/Q0.

Sign in / Sign up

Export Citation Format

Share Document