Huawei Technologies Co., Limited

Shenzhen University

Xiaoyu Li

Yong Tian

Shenghua Zhou

Jindong Tian

Shaohong Lin

A battery malfunction detection method includes: applying a preset number of vibration signals with different frequencies to a battery to be detected through a vibration generation device; collecting a response signal of the battery to be detected through a response collection device, where the response signal includes the preset number of vibration response amplitudes of the battery to be detected; determining whether the battery to be detected is malfunctioning according to the response signal.

Battery malfunction detection by correlating vibrations response spectrums

The present invention discloses a time-to-digital converter. The time-to-digital converter includes: a phase interpolation circuit and a time-to-digital conversion circuit. The phase interpolation circuit is configured to receive a first reference clock signal and a second reference clock signal; perform phase interpolation on the first reference clock signal and the second reference clock signal to generate a third reference clock signal; and output the third reference clock signal to the time-to-digital conversion circuit. The time-to-digital conversion circuit is configured to receive the third reference clock signal and a fourth clock signal, where a phase difference between the third reference clock signal and the fourth clock signal is less than a phase difference between the first reference clock signal and the fourth clock signal; measure the phase difference between the third reference clock signal and the fourth clock signal; and convert the measured phase difference into a digital signal for outputting.

Growing community of inventors

Shenzhen, China

Xiaoyu Li