ON THE INTRODUCTION OF NEW FLOATING CURRENT CONVEYORS

2009 ◽  
Vol 18 (06) ◽  
pp. 1005-1016 ◽  
Author(s):  
AHMED M. SOLIMAN ◽  
RAMY A. SAAD
Keyword(s):  
Second Generation ◽  
Current Conveyor ◽  
Current Conveyors ◽  
Cmos Circuit ◽  
Current Mirror ◽  
Admittance Matrix ◽  
Special Cases

Two new types of floating current conveyors are introduced. Each type has four ports: Y, X and two Z ports. The first type is the Floating Second Generation Current Conveyor (FCCII) and includes both CCII+ and CCII- as special cases. The second type is the Floating Inverting Second Generation Current Conveyor (FICCII) and includes both ICCII+ and ICCII- as special cases. The Nodal Admittance Matrix (NAM) stamp for the Nullator-Pathological Current Mirror is derived. Examples are given together with a CMOS circuit realizing both the FCCII and FICCII.

scholarly journals Novel Current-Conveyor-Based Universal Current-Mode Biquad Filter with Three Inputs and One Output

1998 ◽  
Vol 20 (4) ◽  
pp. 235-240 ◽  
Author(s):  
Muhammad Taher Abuelma'atti ◽  
Hussain Abdullah Al-Zaher
Keyword(s):  
Second Generation ◽  
Current Mode ◽  
Current Conveyor ◽  
Current Conveyors ◽  
Independent Control ◽  
Biquad Filter

A novel universal current-mode filter with three inputs and one high imedance output is presented. The proposed circuit uses four plus-type second-generation current-conveyors, grounded resistors and grounded capacitors. The proposed circuit enjoys low active and passive sensitivities and independent control of the parametersω0/Q0using grounded resistors.

scholarly journals A Novel Mixed-Mode Current-Controlled Current-Conveyor-Based Filter

2003 ◽  
Vol 26 (3) ◽  
pp. 185-191 ◽  
Author(s):  
Muhammad Taher Abuelma'atti
Keyword(s):  
Mixed Mode ◽  
Second Generation ◽  
Current Conveyor ◽  
Current Conveyors ◽  
Simulation Results

A new mixed-mode biquad circuit is presented. The circuit uses four dual-output second-generation currentcontrolled current-conveyors (DOCCCIIs) and two grounded capacitors and can realize lowpass, highpass, bandpass and notch responses from the same topology. The circuit can be driven by voltage or current and its output can be voltage or current. The parametersωoandωo/Qoenjoy independent electronic tunability. Simulation results are included.

High Input Impedances Voltage-mode First-order Filters with Grounded Capacitors using CCIIs

2020 ◽  
Vol 13 (1) ◽  
pp. 64-68
Author(s):  
Jiun-Wei Horng ◽  
Chun-Yang Tsai ◽  
Te-Chi Chen ◽  
Chang-Ming Wu
Keyword(s):  
Second Generation ◽  
Current Conveyor ◽  
Current Conveyors ◽  
High Input ◽  
First Order ◽  
Voltage Mode ◽  
The Third ◽  
Allpass Filters ◽  
Allpass Filter

Background: Three high input impedances voltage-mode first-order filters are presented. Methods: The first proposed circuit uses one multi-output second-generation current conveyor, two resistors and one grounded capacitor. The second proposed circuit uses two second-generation current conveyors, three resistors and one grounded capacitor. The third proposed circuit uses one multi-output second-generation current conveyor, one resistor and two grounded capacitors. Results: First-order lowpass and allpass filters can be simultaneously obtained in the first proposed circuit. First-order lowpass, highpass and allpass filters can be simultaneously obtained in the second proposed circuit. The third proposed circuit can realize first-order allpass filter. Conclusion: All the proposed circuits have the advantages of high input impedances and using only grounded capacitors.

A New Floating Memristance Simulator Circuit Based on Second Generation Current Conveyor

2016 ◽  
Vol 26 (02) ◽  
pp. 1750029 ◽  
Author(s):  
Zehra Gulru Cam ◽  
Herman Sedef
Keyword(s):  
Hysteresis Loop ◽  
Second Generation ◽  
Current Conveyor ◽  
Experimental Results ◽  
Current Conveyors ◽  
Frequency Range ◽  
Passive Element ◽  
Exciting Frequency ◽  
Pinched Hysteresis Loop ◽  
Pinched Hysteresis

In this paper, a new floating analog memristance simulator circuit based on second generation current conveyors and passive elements is proposed. Theoretical derivations are presented which decribe the circuit characteristics. The hardware of proposed simulator circuit is built using commercially available components. Theoretical derivations are validated with PSPICE simulation and experimental results. Performance of circuit was tested with simple example circuits. All results show that proposed simulator circuit provides frequency dependent pinched hysteresis loop and nonvolatility features. Exciting frequency, minimum and maximum memristance values and memristance range can be adjustable with simple passive element values. Simulator circuit has a frequency range of 1[Formula: see text]Hz to 40[Formula: see text]kHz.

scholarly journals Some New First-Order All-Pass Realizations Using CCII

2004 ◽  
Vol 27 (2) ◽  
pp. 91-94 ◽  
Author(s):  
Kirat Pal ◽  
Seema Rana
Keyword(s):  
Input Impedance ◽  
Second Generation ◽  
Current Conveyor ◽  
The Other ◽  
Passive Component ◽  
Current Conveyors ◽  
High Input ◽  
Active Components ◽  
High Input Impedance ◽  
First Order

Some new first-order all-pass filters using a second-generation current conveyor are reported. Two circuits have higher input impedance than reported very recently and use a grounded capacitor. Additionally two more circuits have been reported, one of which has minimum passive and active components and has the facility of single resistance tuning. The other circuit has high input impedance and uses two current conveyors but has one passive component less than the similar circuits reported earlier.

scholarly journals Two Integrator Loop Filters: Generation Using NAM Expansion and Review

2010 ◽  
Vol 2010 ◽  
pp. 1-8 ◽  
Author(s):  
Ahmed M. Soliman
Keyword(s):  
Synthesis Method ◽  
Current Conveyor ◽  
Equivalent Circuits ◽  
Current Conveyors ◽  
Lowpass Filter ◽  
Admittance Matrix ◽  
Unity Gain ◽  
Differential Voltage Current Conveyor ◽  
Inverting Current Conveyors ◽  
Systematic Synthesis

Systematic synthesis method to generate a family of two integrator loop filters based on nodal admittance matrix (NAM) expansion is given. Eight equivalent circuits are obtained; six of them are new. Each of the generated circuits uses two grounded capacitors and employs two current conveyors (CCII) or two inverting current conveyors (ICCII) or a combination of both. The NAM expansion is also used to generate eight equivalent grounded passive elements two integrator loop filters using differential voltage current conveyor (DVCC); six of them are new. Changing the input port of excitation, two new families of eight unity gain lowpass filter circuits each using two CCII or ICCII or combination of both or two DVCC are obtained.

scholarly journals Versatile Active Biquad Based on Dual-Output Second-Generation Current Conveyors

1998 ◽  
Vol 20 (3) ◽  
pp. 151-155 ◽  
Author(s):  
M. T. Abuelma'atti ◽  
H. A. Alzaher
Keyword(s):  
Mixed Mode ◽  
Second Generation ◽  
Transfer Functions ◽  
Current Mode ◽  
Current Conveyor ◽  
Current Conveyors

A universal active biquad based on the dual-output second-generation current-conveyor (CCII±) is presented. The circuit uses only six CCII± and can, simultaneously, support three mixed-mode transfer functions and five current-mode transfer functions. The circuit uses grounded resistors and capacitors and enjoys independent grounded-element control of the filter parameters.

ADJOINT NETWORK THEOREM AND FLOATING ELEMENTS IN THE NAM

2009 ◽  
Vol 18 (03) ◽  
pp. 597-616 ◽  
Author(s):  
AHMED M. SOLIMAN
Keyword(s):  
Building Blocks ◽  
Current Conveyor ◽  
The Other ◽  
Current Mirror ◽  
Op Amp ◽  
Admittance Matrix ◽  
Floating Element

Although the adjoint network theorem preserves all the circuit properties it does not, however, guarantee that the floating property of an element is maintained. In other words, the adjoint of a floating element may not be floating and vice-versa a nonfloating element may have an adjoint floating element as will be explained in this paper. An important and new property of the Nodal Admittance Matrix (NAM) is that it can identify any element as a floating or nonfloating. The four floating basic building blocks including the nullor are tabulated. It is shown that the nullor and the Voltage Mirror (VM)–Current Mirror (CM) pair are self adjoint. The other two floating elements namely Nullator–CM pair and the VM–Norator pair are adjoint to each other. The NAM of the Op Amp family and Current Conveyor (CCII) family are also given. Two examples are given demonstrating the generation of two families of CCII filters from two known two-CCII filter circuits with demonstration of the floatation property in each of the two filters. Although the paper has a tutorial nature it also includes new important results.

ON THE DVCC AND THE BOCCII AS ADJOINT ELEMENTS

2009 ◽  
Vol 18 (06) ◽  
pp. 1017-1032 ◽  
Author(s):  
AHMED M. SOLIMAN
Keyword(s):  
Building Block ◽  
Building Blocks ◽  
Current Conveyor ◽  
Cmos Circuit ◽  
Output Current ◽  
Admittance Matrix ◽  
Differential Voltage ◽  
Differential Voltage Current Conveyor

The Differential Voltage Current Conveyor (DVCC) with its two polarities namely DVCC- and DVCC+ are reviewed together with their pathological element representations. Their two adjoint building blocks are the Balanced Output Current Conveyor (BOCCII) and the Balanced Output Inverting Current Conveyor (BOICCII) are also discussed with their pathological element representations. The universal CMOS circuit realizing these four building blocks is also included. The Nodal Admittance Matrix (NAM) stamp for the DVCC-, DVCC+, BOCCII and BOICCII are also given. Among the four basic building blocks considered the DVCC- is the only floating building block. Examples are given showing that some of the reported filters are related to each other by the adjoint network theorem.

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