Graph-Based Circuit Simulator for Switched Capacitor Circuits

Dinesh, G.; Kailath, Binsu J

doi:10.1109/mdat.2021.3053225

Cited by 1 publication

(1 citation statement)

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“…This paper presents part of such a work in which the state equations and output matrices have been formulated by topological approach using tree/link analysis (TLA) to derive the transfer function and analyze stability of SC circuits. The other part of the work that discusses Transient, Frequency, Noise, and Sensitivity Analyses has been accepted for publication 19 . The proposed methodology has the following unique characteristics.…”

Section: Introductionmentioning

confidence: 99%

Tree/link method for transfer function and stability analysis of switched‐capacitor circuits

Dinesh

Kailath

2021

Circuit Theory & Apps

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Summary The wide spread application of switched‐capacitor circuits has resulted in complex structures wherein the derivation of transfer function in discrete form is not quite straight forward. A computer‐aided tool for direct transfer function analysis of switched‐capacitor circuits using state formulation method is proposed in this paper. The state equation matrices are directly constructed from the circuit topology using tree/link analysis. The entire topology is formulated only using cutset equations to obtain the state matrices without any modifications. The discretized topological state matrices are used to generate the transfer function in z form by forward substitution of state equation in successive clock phase. Lyapunov criteria‐based matrix equation constructed using the same state matrix is used to investigate the circuit stability. The formulation is also suitable in addressing the effect of non‐idealities like switch resistance and finite gain of operational amplifiers, on the location of poles and zeros. Various numerical examples have been presented to demonstrate the performance of the simulator.

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Section: Introductionmentioning

confidence: 99%