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基于差分进化优化的霍兰德电流源设计

Design of Howland Current Sources Using Differential Evolution Optimization.

作者信息

Morcelles Kaue Felipe, Negri Lucas Hermann, Bertemes-Filho Pedro

机构信息

State University of Santa Catarina. Joinville. Brazil.

Federal Institute of Education, Science and Technology of Mato Grosso do Sul. Nova Andradina, Brazil.

出版信息

J Electr Bioimpedance. 2020 Dec 31;11(1):96-100. doi: 10.2478/joeb-2020-0014. eCollection 2020 Jan.

DOI:10.2478/joeb-2020-0014
PMID:33584909
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7851979/
Abstract

Howland circuits have been widely used in Electrical Bioimpedance Spectroscopy applications as reliable current sources. This paper presents an algorithm based on Differential Evolution for the automated design of Enhanced Howland Sources according to arbitrary design constraints while respecting the Howland ratio condition. Results showed that the algorithm can obtain solutions to commonly sought objectives, such as maximizing the output impedance at a given frequency, making it a versatile method to be employed in the design of sources with specific requirements. The mathematical modeling of the source output impedance and transconductance, considering a non-ideal operational amplifier, was validated against SPICE simulations, with results matching up to 10 MHz.

摘要

霍兰德电路作为可靠的电流源已在生物电阻抗谱应用中得到广泛使用。本文提出了一种基于差分进化的算法，用于根据任意设计约束自动设计增强型霍兰德源，同时满足霍兰德比率条件。结果表明，该算法能够获得常见目标的解决方案，例如在给定频率下最大化输出阻抗，使其成为一种可用于设计具有特定要求的电源的通用方法。考虑非理想运算放大器的电源输出阻抗和跨导的数学模型通过SPICE仿真得到验证，结果在高达10 MHz的频率范围内匹配。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78eb/7851979/176357c45a77/joeb-11-096-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78eb/7851979/4f843d49239e/joeb-11-096-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78eb/7851979/34bc9b0ced9e/joeb-11-096-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78eb/7851979/8f03411b8f99/joeb-11-096-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78eb/7851979/b9f31953e6f2/joeb-11-096-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78eb/7851979/edb5cd69ea40/joeb-11-096-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78eb/7851979/176357c45a77/joeb-11-096-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78eb/7851979/4f843d49239e/joeb-11-096-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78eb/7851979/34bc9b0ced9e/joeb-11-096-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78eb/7851979/8f03411b8f99/joeb-11-096-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78eb/7851979/b9f31953e6f2/joeb-11-096-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78eb/7851979/edb5cd69ea40/joeb-11-096-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78eb/7851979/176357c45a77/joeb-11-096-g006.jpg

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本文引用的文献

1
Bioimpedance measurement as an assessment of margin positivity in Mohs surgical specimens of nonmelanoma skin cancer: Management implications.生物阻抗测量用于评估非黑色素瘤皮肤癌莫氏手术标本的切缘阳性情况：对治疗的影响
J Am Acad Dermatol. 2018 Sep;79(3):591-593. doi: 10.1016/j.jaad.2018.02.075. Epub 2018 Mar 13.
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Howland current source for high impedance load applications.用于高阻抗负载应用的霍兰德电流源。
Rev Sci Instrum. 2017 Nov;88(11):114705. doi: 10.1063/1.5005330.
3
Bioimpedance and bioreactance methods for monitoring cardiac output.
用于监测心输出量的生物阻抗和生物电抗方法。
Best Pract Res Clin Anaesthesiol. 2014 Dec;28(4):381-94. doi: 10.1016/j.bpa.2014.09.003. Epub 2014 Sep 23.
4
Biocompatible, high precision, wideband, improved Howland current source with lead-lag compensation.具有生物相容性、高精度、宽带、带滞后补偿的改进型 Howland 电流源。
IEEE Trans Biomed Circuits Syst. 2013 Feb;7(1):63-70. doi: 10.1109/TBCAS.2012.2199114.
5
Bioimpedance: a novel method for the determination of extravascular lung water.生物电阻抗：一种测定血管外肺水的新方法。
J Surg Res. 1990 May;48(5):454-9. doi: 10.1016/0022-4804(90)90012-q.