The voltage mirror–current mirror pair as a universal element

Soliman, Ahmed M.; Saad, Ramy A.

doi:10.1002/cta.596

Cited by 39 publications

(32 citation statements)

References 19 publications

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“…Therefore, the condition for oscillation and the oscillation frequency are the same form as Eqs. (4)- (5). However, to obtain the linear control between oscillation frequency and bias current, impose C 1 = C 2 , I B11 = I B22 = I B , and note that the relationship of G i (i = 1, 2, 3, 4) and bias currents.…”

Section: Class III Oscillatorsmentioning

confidence: 98%

Derivation for current-mode Wien oscillators using CCCCTAs

2015

Analog Integr Circ Sig Process

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According to NAM expansion method and adjoint network theorem, the systematic synthesis method of CCCCTA-based current-mode Wien oscillators is given and three different classes of the oscillators are derived. The class I oscillators have 16 different forms, the class II oscillators have 24 different forms, and the class III oscillators have 16 different forms. Since the circuits use fewer active elements and grounded capacitors, the circuits are easy to be integrated and provide the attractive feature of independent electronic control of the condition and frequency of oscillation. The circuit analysis and computer simulation results have been included to support the generation method.

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Section: Class III Oscillatorsmentioning

confidence: 98%

Derivation for current-mode Wien oscillators using CCCCTAs

2015

Analog Integr Circ Sig Process

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“…1 [2]. These representations are useful in circuit modeling [2,20,30,42], circuit transformation [28,29,41], and circuit synthesis [18,19]. However, these representations do not allow to include parasitics and they can not be used within the symbolic NA method, because their inverting characteristics do not allow to perform operations as it is done for networks containing nullators and norators [7,22,37,39].…”

Section: Vm and CM Nullor-equivalentsmentioning

confidence: 99%

“…The modeling of active devices possessing inverting characteristics can be done by using the VM and CM, as pathological elements [2,20,30,42]. An important thing is that an analog circuit containing VMs and CMs also allows to transform circuit topologies or voltage-mode to currentmode circuits and vice-versa [5,8,10,15,28,29,41].…”

Section: Introductionmentioning

confidence: 99%

Symbolic analysis of analog circuits containing voltage mirrors and current mirrors

Tlelo‐Cuautle

Sánchez–López

Martinez-Romero

et al. 2010

Analog Integr Circ Sig Process

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The pathological elements voltage mirror (VM) and current mirror (CM) have shown advantages in analog behavioral modeling and circuit synthesis, where many nullor-mirror equivalences have been explored to design and to transform voltage-mode circuits to current-mode ones and viceversa. However, both the VM and CM have not equivalents to perform automatic symbolic circuit analysis. In this manner, we introduce nullor-equivalents for these pathological elements allowing to include parasitics and to perform only symbolic nodal analysis. The nullor-equivalent of the CM is extended to provide multiple-outpus (MO-CM). Finally, two active filters containing VMs, CMs and MO-CMs are analysed to show the usefulness of the models.

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“…More recently, current mirrors and voltage mirrors were proposed (Awad & Soliman, 2002;Soliman & Saad, 2010). They are considered as complements to nullators and norators, because they allow reversing current and voltage actions.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of active circuits by combining UGCs

Fakhfakh

Pierzchala

2015

International Journal of Electronics

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In this paper we propose a novel idea for the synthesis of active circuits. We deal with the use of unity gain cells (voltage followers, voltage inverters, current followers, current inverters) for the design of simulated grounded inductors, multifunction filters and oscillators. The starting point of the proposed idea is the operation on the signalflow graphs for such synthesis. We show that, thanks to the proposed technique, a wide number of active networks can be synthesised where all used passive components are grounded.

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The voltage mirror–current mirror pair as a universal element

Cited by 39 publications

References 19 publications

Derivation for current-mode Wien oscillators using CCCCTAs

Derivation for current-mode Wien oscillators using CCCCTAs

Symbolic analysis of analog circuits containing voltage mirrors and current mirrors

Synthesis of active circuits by combining UGCs

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