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Equivalent circuit analysis device and an equivalent circuit analysis method
Equivalent circuit analysis device and an equivalent circuit analysis method
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机译：等效电路分析装置及等效电路分析方法
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摘要
PROBLEM TO BE SOLVED: To calculate respective parameters of an equivalent circuit through analysis with high precision.SOLUTION: When plot curve generation processing for generating a Nyquist plot curve A, fitting processing for calculating a semicircle B corresponding to an arcuate area W of the curve A, and capacity calculation processing for calculating a capacity component constituting an equivalent circuit on the basis of real-number component values R1, R2 at contacts P1, P2 between the semicircle B and a lateral axis and a frequency fc at an intersection P3 of the semicircle B and a straight line L1 are performed, frequency calculation processing is executed in which a frequency variation quantity is calculated by dividing a difference in frequency between a pair of specific plots Pa, Pb where a real-number component value is nearly equal to a real-number component value at the intersection P3 by a difference value (Rb-Ra) between those real-number component values, and a multiplication value obtained by multiplying the difference value between the real-number component value Rb on one specific plot Pb and the real-number component value at the intersection P3 by the frequency variation quantity and a frequency fb of the specific plot Pb are added together.
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