Industrial Technology Research Institute

Yi-Feng Luo

Cihun-Siyong Gong

Kai-Cheung Juang

Li-Ren Huang

An impedance analyzing device, adapted to a testee comprising an electrode or at least one battery cell, includes a signal capturing unit, a signal adjusting unit, a signal analyzing unit, a processing unit, and a power source supply unit providing a variable-frequency voltage signal to the testee. The signal adjusting unit receiving and adjusts a variable-frequency voltage signal and the current signal to generate an adjusted variable-frequency voltage signal and an adjusted current signal. The signal capturing unit captures a current signal generated by the testee in response to the variable-frequency voltage signal. The signal analyzing unit receives and analyzes the adjusted variable-frequency voltage signal and the adjusted current signal in frequency domain to obtain a frequency domain parameter and/or a time domain parameter. The processing unit receives the frequency domain parameter and/or the time domain parameter to obtain an impedance variation characteristic of the testee.

Impedance analyzing device

An impedance analysis device adapted to an object under test (OUT) includes a signal generator, a signal analysis unit and a processing unit. The signal generator outputs a pulse signal to the OUT. The signal analysis unit acquires a response signal which the OUT responds to the pulse signal, and analyzes the response signal to obtain an analysis parameter. The processing unit coupled to the signal analysis unit receives the analysis parameter, so as to obtain an impedance variation characteristic of the OUT.

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Yilan County, Taiwan

Yi-Feng Luo