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A preparation method of fractional capacitive element of 0 to 1 order power stage

A capacitive element and fractional-order technology, which is applied in the field of preparation of 0 to 1-order power-stage fractional-order capacitive elements, and can solve problems such as no reports of fractional-order capacitive elements.

Active Publication Date: 2018-04-13
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen that there is an urgent need for a fractional-order capacitive element that can be used in power converters. However, due to the existence of parasitic parameters in actual electronic components and the power limitation of components, applicable fractional-order capacitive components have not been seen in the existing literature. Capacitive elements are reported

Method used

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  • A preparation method of fractional capacitive element of 0 to 1 order power stage
  • A preparation method of fractional capacitive element of 0 to 1 order power stage
  • A preparation method of fractional capacitive element of 0 to 1 order power stage

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Embodiment 1

[0039] See figure 1 , figure 1 It is the schematic diagram of the DC-DC Boost converter of the present embodiment 1, wherein the Boost converter input voltage E=12V, switching frequency fs=25kHz, duty cycle 0.4, inductance L=477μH, load R=40Ω, fractional order capacitance 0.9 order 10μF capacitor. The specific implementation steps of the method provided by the invention are as follows:

[0040] S1. Using a partial reactance approximation method proposed in Document 5, at the current switching frequency, when the approximation error is within 2dB, design a 0.9-order 10μF capacitor. The specific conditions are as follows:

[0041] S11. According to the impedance characteristics of the ideal fractional capacitor, write the impedance function equation:

[0042]

[0043] S12. From the impedance function, the s-domain transfer function of the ideal fractional capacitor can be written:

[0044]

[0045] S13, get the approximation frequency band as (10 -2 , 10 7 )rad / s, N=...

Embodiment 2

[0067] In this embodiment, the DC-DC Boost converter in Embodiment 1 is still used, and the fractional-order capacitor is changed to a 0.8-order 10 μF capacitor. As shown in the figure, the input voltage E=12V of the Boost converter is adopted, the switching frequency fs=25kHz, the duty ratio is 0.4, the inductance L=477μH, and the load R=40Ω. The specific implementation steps of the method provided by the invention are as follows:

[0068] S1. Using a partial reactance approximation method proposed in Document 5, at the current switching frequency, when the approximation error is within 2dB, design a 0.8-order 10μF capacitor. The specific conditions are as follows:

[0069] S11. According to the impedance characteristics of the ideal fractional capacitor, write the impedance function equation:

[0070]

[0071] S12. From the impedance function, the s-domain transfer function of the ideal fractional capacitor can be written:

[0072]

[0073] S13, get the approximation...

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Abstract

The invention discloses a manufacturing method of a 0 to 1 order power level fraction order capacitance component. In the method, a fractance approximation method is used to design an S domain transfer function. A circuit integration method is used to acquire a Forster I type RC single port network topology structure and a parameter corresponding to the transfer function. During a manufacturing process, a voltage current stress borne by the fraction order capacitance component is considered and resistance and capacitance components with different specifications are selected. A fraction order capacitor constructed in the invention can be used for an actual power level circuit.

Description

technical field [0001] The invention relates to the field of construction of fractional-order electronic components, in particular to a method for preparing fractional-order capacitive components with power levels from 0 to 1. Background technique [0002] At present, fractional capacitive elements of order 0 to 1 are still in the stage of theoretical design. In addition to fabricating fractional order components in the laboratory based on electrochemical principles (Reference 1 "Sivarama Krishna M., Das S.; Biswas K., Goswami B. "Fabrication of a Fractional Order Capacitor With Desired Specifications: AStudy on Process Identification and Characterization "IEEE Trans. on Electron Devices, vol.58, no.11, pp.4067-4073, Oct.2011.", Reference 2 "Mondal D., Biswas K. "Packaging of Single-Component Fractional Order Element." IEEE Trans. on Device and Materials Reliability, vol.13, no.1, pp.73-80, Mar.2013."), the existing main solution is to use various active and passive devices...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03H5/00
CPCH03H5/00
Inventor 陈艳峰陈曦张波
Owner SOUTH CHINA UNIV OF TECH