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Search Results: 1 - 10 of 4228 matches for " Dinesh Prasad "
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New Electronically-Controllable Lossless Synthetic Floating Inductance Circuit Using Single VDCC  [PDF]
Dinesh Prasad, Javed Ahmad
Circuits and Systems (CS) , 2014, DOI: 10.4236/cs.2014.51003
Abstract:

A new electronically-controllable lossless floating inductance (FI) circuit (without any matching condition) has been presented, which employs only one Voltage Differencing Current Conveyor (VDCC), one grounded capacitor and one grounded resistor. The main aim of the paper is to present a new floating inductance simulator using single active device with minimum passive components. The proposed floating inductance simulator can be electronically controllable by changing the bias current. The workability of the new presented FI circuit has been verified using SPICE simulation with TSMC CMOS 0.18 μm process parameters.

Grounded and Floating Inductance Simulation Circuits Using VDTAs  [PDF]
Dinesh Prasad, D. R. Bhaskar
Circuits and Systems (CS) , 2012, DOI: 10.4236/cs.2012.34048
Abstract: New electronically-controllable lossless grounded and floating inductance simulation circuits have been proposed employing Voltage Differencing Transconductance Amplifiers (VDTA). The proposed grounded inductance (GI) circuit employs a single VDTA and one grounded capacitor whereas the floating inductance (FI) circuit employs two VDTAs and one grounded capacitor. The workability of the new circuits has been verified using SPICE simulation with TSMC CMOS 0.18 μm process parameters.
Universal Current-Mode Biquad Filter Using a VDTA  [PDF]
Dinesh Prasad, Data Ram Bhaskar, Mayank Srivastava
Circuits and Systems (CS) , 2013, DOI: 10.4236/cs.2013.41006
Abstract:

This paper presents a new current-mode single input multi output (SIMO) type biquad employing one voltage differencing transconductance amplifier (VDTA), two grounded capacitors and a single grounded resistor. The configuration realizes all basic filter functions (i.e. Low Pass (LP), High Pass (HP), Band Pass (BP), Notch (BR) and All Pass (AP)). The natural frequency (ω0) and bandwidth (BW) are independently tunable. The workability of proposed configuration has been verified using SPICE simulation with TSMC CMOS 0.18 μm process parameters.

Electronically Controllable Fully-Uncoupled Explicit Current-Mode Quadrature Oscillator Using VDTAs and Grounded Capacitors  [PDF]
Dinesh Prasad, Mayank Srivastava, Data Ram Bhaskar
Circuits and Systems (CS) , 2013, DOI: 10.4236/cs.2013.42023
Abstract:

An electronically controllable fully uncoupled explicit current-mode quadrature oscillator employing Voltage Differencing Transconductance Amplifiers (VDTAs) as active elements has been presented. The proposed configuration employs two VDTAs along with grounded capacitors and offers the following advantageous features 1) fully and electronically independent control of condition of oscillation (CO) and frequency of oscillation (FO); 2) explicit current-mode quadrature oscillations; and 3) low active and passive sensitivities. The workability of proposed configuration has been demonstrated by PSPICE simulations with TSMC CMOS 0.18 μm process parameters.

VDTA-Based Wave Active Filter  [PDF]
Harshvardhan Singh, Kunal Arora, Dinesh Prasad
Circuits and Systems (CS) , 2014, DOI: 10.4236/cs.2014.55014
Abstract:

In this paper we present a wave active filter based on Voltage Differencing Transconductance Amplifiers (VDTAs). The synthesis of active filters basically based on processing of wave quantities. The wave method is presented for basic building blocks of active filters i.e. a series inductor and parallel capacitor through which realization of various active circuits is made by appropriate connections. The proposed wave active filter is verified by realizing a 4th order low pass Butterworth filter using SPICE simulation with 0.18 μm TSMC CMOS technology parameters.


Single VDVTA-Based Voltage-Mode Biquad Filter  [PDF]
Ghanshyam Singh, Dinesh Prasad, D. R. Bhaskar
Circuits and Systems (CS) , 2015, DOI: 10.4236/cs.2015.63006
Abstract: In this paper, an application of voltage differencing voltage transconductance amplifier (VDVTA) in the realization of voltage-mode (VM) multi-input single output (MISO) type biquad is presented. The proposed topology uses one VDVTA as an active element, two capacitors and a grounded resistor. The configuration realizes low pass (LP), high pass (HP), band pass (BP) and notch (BR) filters without the requirement of any matching condition. The natural frequency (w0) and bandwidth (BW) are independently controllable. The proposed circuit offers low active and passive sensitivities of w0. The operation of the proposed circuit has been verified through SPICE simulation with TSMC CMOS 0.18 μm process parameters.
Voltage-Mode Universal Biquad Filter Employing Single Voltage Differencing Differential Input Buffered Amplifier  [PDF]
Kanhaiya Lal Pushkar, Data Ram Bhaskar, Dinesh Prasad
Circuits and Systems (CS) , 2013, DOI: 10.4236/cs.2013.41008
Abstract:

A new multi function voltage-mode universal biquadratic filter using single Voltage Differencing Differential Input Buffered Amplifier (VD-DIBA), two capacitors and one resistor is proposed. The proposed configuration has four inputs and one output and can realize all the five standard filters from the same circuit configuration. The presented biquad filter offers low active and passive sensitivities. The validity of proposed universal biquadratic filter has been verified by SPICE simulation using 0.35 μm MIETEC technology.

Fully Uncoupled Electronically Controllable Sinusoidal Oscillator Employing VD-DIBAs  [PDF]
Data Ram Bhaskar, Dinesh Prasad, Kanhaiya Lal Pushkar
Circuits and Systems (CS) , 2013, DOI: 10.4236/cs.2013.43035
Abstract: Recently, voltage differencing-differential input buffered amplifiers (VD-DIBA)-based electronically controllable sinusoidal oscillator has been presented that it does not have the capability of complete independence of frequency of oscillation (FO) and condition of oscillation (CO) as well as electronic control of both CO and FO. In this article, a new fully-uncoupled electronically controllable sinusoidal oscillator using two VD-DIBAs, two grounded capacitors and two resistors has been proposed which offers important advantages such as 1) totally uncoupled and electronically controlled condition of oscillation (CO) and frequency of oscillation (FO); 2) low active and passive sensitivities; and 3) a very good frequency stability factor. The effects of non-idealities of the VD-DIBAs on the proposed oscillator are also investigated. The validity of the proposed formulation has been confirmed by SPICE simulation with TSMC 0.18 μm process parameters.
Electronically-Controllable Grounded-Capacitor-Based Grounded and Floating Inductance Simulated Circuits Using VD-DIBAs  [PDF]
Data Ram Bhaskar, Dinesh Prasad, Kanhaiya Lal Pushkar
Circuits and Systems (CS) , 2013, DOI: 10.4236/cs.2013.45055
Abstract:

New Voltage Differencing Differential Input Buffered Amplifier (VD-DIBA) based lossless grounded and floating inductance simulation circuits have been proposed. The proposed grounded simulated inductance circuit employs a single VD-DIBA, one floating resistance and one grounded capacitor. The floating simulated inductance (FI) circuits employ two VD-DIBAs with two passive components (one floating resistance and one grounded capacitor). The circuit for grounded inductance does not require any realization conditions where as in case of floating inductance circuits, a single matching condition is needed. Simulation results demonstrating the applications of the new simulated inductors using CMOS VD-DIBAs have been included to confirm the workability of the new circuits.

Digitally Programmable Voltage Mode Universal Filters—A Minimal Realization  [PDF]
Devesh Singh, Neelofer Afzal, Dinesh Prasad, Richa Srivastava, Kuldeep Panwar
Circuits and Systems (CS) , 2015, DOI: 10.4236/cs.2015.610022
Abstract: Three voltage mode universal filter biquads using digitally programmable second generation current conveyor (CCII) are presented in this paper. Salient features of proposed filter configurations include realization of all the filter functions except allpass, independently programmable filter parameters, no component matching constraint and low sensitivity figure. Component count of proposed filter configurations is proved to be minimal for offering aforementioned set of features. Workability of proposed circuit is verified by including the SPICE simulations.
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