公开(公告)号：US11415435B2

公开(公告)日：2022-08-16

申请号：US16917272

申请日：2020-06-30

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Tsan-Huang Chen ,  Yu-Chen Lee ,  Chung-Lin Tseng ,  Jyun-Liang Lai ,  Yi-Ting Wang

IPC: G01D5/12 ,  H03H7/06 ,  H03M1/12

Abstract: An encoder and a signal processing method are disclosed. The method includes: receiving an analog signal, and generating a filtered analog signal by an analog filter according to the input signal and a first frequency indication signal; generating a digital signal by an analog-to-digital converter according to the filtered analog signal; generating a filtered digital signal by a digital filter according to the digital signal and a second frequency indication signal; generating a seventh signal and an eighth signal by a dynamic offset calibration unit according to the filtered digital signal and a period indication signal; and generating a position information by a position detection unit according to the seventh signal and the eighth signal. The first frequency indication signal, the second frequency indication signal and the period indication signal are generated by a frequency generation module according to the filtered analog signal or the digital signal.

公开(公告)号：US11934171B2

公开(公告)日：2024-03-19

申请号：US17712372

申请日：2022-04-04

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chih-Kai Chiu ,  Bo-Ting Yeh ,  Tsan-Huang Chen

IPC: H02K11/20 ,  G01D18/00 ,  G05B19/401 ,  H02K11/21

CPC classification number: G05B19/4015 ,  G05B2219/34013 ,  G05B2219/41095

Abstract: The present disclosure discloses a servo motor and an encoder calibration method. The encoder calibration method includes: calculating a gain error, an offset error and a phase error, by an error calculation block, according to a first signal and a second signal output by an encoder; calculating at least one gain calibration parameter, at least one offset calibration parameter and at least one phase calibration parameter, by the error calibration block, according to the gain error, the offset error and the phase error; and calibrating sequentially, by the encoder, the gain, the offset and the phase of the first signal and the second signal according to the at least one gain calibration parameter, the at least one offset calibration parameter and the at least one phase calibration parameter, wherein performing at least one gain calibration and offset calibration after the phase calibration is completed.

公开(公告)号：US12235327B2

公开(公告)日：2025-02-25

申请号：US18101970

申请日：2023-01-26

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Yu-Hong Shen ,  Po-Wei Chen ,  Tsan-Huang Chen

IPC: G01R31/392 ,  G01R31/3835 ,  H02J7/00

Abstract: A method for calculating state of health of battery, performed by a processing control circuit, includes: charging a battery under test to an upper voltage with a first constant current through a charging circuit and an electrical measuring circuit, discharging the battery under test to a lower voltage with a second constant current through the charging circuit and the electrical measuring circuit, obtaining an accumulated discharge capacity from the upper voltage to the lower voltage through the electrical measuring circuit, and calculating a state of health of the battery under test at least according to the accumulated discharge capacity and a design capacity.

公开(公告)号：US09257896B1

公开(公告)日：2016-02-09

申请号：US14594164

申请日：2015-01-11

Applicant: Industrial Technology Research Institute

Inventor： Horng-Jzer Shih ,  Tsan-Huang Chen ,  Chien-Yu Chen ,  Bo-Ting Yeh

IPC: H02M1/14 ,  H02M3/04 ,  H02M7/44

CPC classification number: H02M1/14 ,  G05F1/67 ,  H02M3/04 ,  H02M7/44

Abstract: A control circuit of a power converter including a first and a second control modules is provided. The first control module sets sampling points for a ripple signal of an input voltage according to a reference signal. The first control module determines whether a power point is the maximum power point according to ripple voltages of the sampling points. The second control module controls the power converter to output a maximum power according to the maximum power point based on the determination result of the first control module and the reference signal. An embodiment of a method for tracking a maximum power point is provided. The input voltage of the power converter is measured. The sampling points are set for the ripple signal of the input voltage and phase information of the ripple signal is determined, such that the maximum power point is determined by using the ripple voltages.

Abstract translation: 提供了包括第一和第二控制模块的功率转换器的控制电路。 第一控制模块根据参考信号设置输入电压纹波信号的采样点。 第一控制模块根据采样点的纹波电压来确定功率点是否是最大功率点。 第二控制模块基于第一控制模块的确定结果和参考信号来控制功率转换器根据最大功率点输出最大功率。 提供了用于跟踪最大功率点的方法的实施例。 测量功率转换器的输入电压。 为输入电压的纹波信号设置采样点，并确定纹波信号的相位信息，以便通过使用纹波电压确定最大功率点。