Nonlinear modeling and analysis of buck converter using volterra series
TL;DR: Harmonic distortion associated with a 12 V to 1.2 V open-loop buck converter (designed in the BCD 180 nm technology of STMicroelectronics) has been analyzed and the nonlinear behavior of a buck converter has been modeled using Volterra series for expected power supply ripples of 50 Hz.
Abstract: The presence of harmonic components in a power delivery network affects the performance of the high-speed systems. In this paper, harmonic distortion associated with a 12 V to 1.2 V open-loop buck converter (designed in the BCD 180 nm technology of STMicroelectronics) has been analyzed. The nonlinear behavior of a buck converter has been modeled using Volterra series for expected power supply ripples of 50 Hz. The analysis has been compared with simulation results and shows 5 %, 1 % and 7 % of mean relative error. The difference between the analytical and the simulation results for IP 2h and IP3 h are 2.7 dB and 3 dB, respectively.
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Cites methods from "Nonlinear modeling and analysis of ..."
...Volterra series based methods are particularly very useful to define the input-output relationship for a weakly nonlinear system [8], [9]....
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...1 shows a commonly used PDN which consists of an open-loop DC-DC buck converter with a board and a package (modeled as S-parameters) [9]....
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...In [9], the closed-form expressions of harmonic distortion quantities for a DC-DC buck converter has been discussed using Volterra series....
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Cites background or methods from "Nonlinear modeling and analysis of ..."
...buck converters [10] and for for acoustic echo cancellation [11], [12]....
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...Performance of a system modelled using Volterra filter is quantified using statistical parameters such as root mean square error (RMSE) and the mean absolute percentage error (MAPE) [8], [10]....
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References
5,939 citations
"Nonlinear modeling and analysis of ..." refers background in this paper
...The VRMs are known for high conversion efficiency and are widely used to provide a regulated supply voltage to processors, storage devices and programmable devices [5], [6]....
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...The line-to-output open-loop transfer function (Gvg) and the control-to-output open-loop transfer function (Gvd) of a buck converter are defined as [5]:...
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...Generally, the switching frequency (fsw) of buck converter is chosen between 1 KHz–1 MHz on the basis of speed, size, cost and efficiency of the manufacturing devices [5], [6]....
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2,743 citations
"Nonlinear modeling and analysis of ..." refers background in this paper
...WP and LP refer to the width and length of the PMOS transistor [20]....
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1,131 citations
"Nonlinear modeling and analysis of ..." refers methods in this paper
...Several other iterative methods such as multirate partial differential equations (MPDE) [13], numerical integration method [11] and shooting method [14] may used to solve the boundary value problems for transient analysis....
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1,120 citations