A Few Improvement for Low-frequency Impedance Analysis

摘要

Two improvements for traditional low-frequency impedance analysis technology were studied. Firstly, the dual-DDSs (direct digital synthesis) replaced the traditional frequency synthesis to generate the impulse signal and the clock of the detection phase signals. Secondly, the multi-slope A/D conversion was replaced by the true root-mean-square (RMS) conversion for dividing vectors. Because of the similar drivers for dual-DDSs, the design of software is easier than the traditional analyzer, and without the multi-integral, the speed of measurement is higher than that of the traditional analyzer.