公开(公告)号：US11733312B2

公开(公告)日：2023-08-22

申请号：US16898188

申请日：2020-06-10

Applicant: Infineon Technologies AG

Inventor： Andreas Berger ,  Stefano Marsili ,  Francesco Conzatti

IPC: G01R31/385 ,  G01R31/389

CPC classification number: G01R31/389 ,  G01R31/385

Abstract: In some examples, a device can be used for measuring the impedance of a first battery cell. The device includes a first analog-to-digital converter (ADC) and a second ADC. The device also includes a multiplexer configured to connect the first ADC to the first battery cell in a first instance and to connect the second ADC to a current sensor in the first instance. The current sensor is configured to sense current through the first battery cell. The multiplexer is also configured to connect the first ADC to the current sensor in a second instance and to connect the second ADC to the first battery cell in the second instance or in a third instance.

公开(公告)号：US10481214B2

公开(公告)日：2019-11-19

申请号：US15419687

申请日：2017-01-30

Applicant: Infineon Technologies AG

Inventor： Stefano Marsili ,  Christoph Sandner ,  Johannes Thielmann

IPC: G01R31/389 ,  H01M10/0525 ,  G01R31/36 ,  H01M10/48 ,  G01R31/382 ,  G01K7/16 ,  G01K7/42

Abstract: A method and a temperature detection circuit are disclosed. An example of the method includes driving an alternating current with a first frequency into a battery and detecting an imaginary part of a battery impedance at the first frequency; driving an alternating current with a second frequency different from the first frequency into the battery and detecting an imaginary part of the battery impedance at the second frequency; and calculating an intercept frequency at which the imaginary part equals a predefined value at least based on the imaginary part obtained at the first frequency and the imaginary part obtained at the second frequency.

公开(公告)号：US10128752B1

公开(公告)日：2018-11-13

申请号：US15847349

申请日：2017-12-19

Applicant: Infineon Technologies AG

Inventor： Marc Kanzian ,  Andreas Berger ,  Harald Gietler ,  Stefano Marsili ,  Robert Priewasser ,  Christoph Unterrieder

IPC: H02M3/157 ,  H02M1/00

Abstract: In an example, a device for operating a switching converter is configured to determine a set of perturbed duty cycle values for a converter. A perturbation sequence is superimposed simultaneously onto a duty cycle value for each phase of the converter to form the set of perturbed duty cycle values. The device is further configured to determine an output voltage of the converter that occurs when the converter operates based on the set of perturbed duty cycle values, determine a coefficient vector of system parameters for the converter based on the output voltage and the set of perturbed duty cycle values, and tune a controller based on the coefficient vector. The duty cycle value for each phase of the converter is based on a respective command duty cycle value of a set of command duty cycle values output by the controller.

公开(公告)号：US20210389378A1

公开(公告)日：2021-12-16

申请号：US16898188

申请日：2020-06-10

Applicant: Infineon Technologies AG

Inventor： Andreas Berger ,  Stefano Marsili ,  Francesco Conzatti

IPC: G01R31/389 ,  G01R31/385

Abstract: In some examples, a device can be used for measuring the impedance of a first battery cell. The device includes a first analog-to-digital converter (ADC) and a second ADC. The device also includes a multiplexer configured to connect the first ADC to the first battery cell in a first instance and to connect the second ADC to a current sensor in the first instance. The current sensor is configured to sense current through the first battery cell. The multiplexer is also configured to connect the first ADC to the current sensor in a second instance and to connect the second ADC to the first battery cell in the second instance or in a third instance.

公开(公告)号：US20210367609A1

公开(公告)日：2021-11-25

申请号：US17325409

申请日：2021-05-20

Applicant: Infineon Technologies AG

Inventor： Kyrylo Cherniak ,  Werner Hoellinger ,  Stefano Marsili ,  Volha Subotskaya

IPC: H03M1/40 ,  H02M3/157

Abstract: A converter includes a switched capacitor circuit that includes at least one capacitor and a plurality of main switches to provide an output current in response to an input voltage applied to the switched capacitor circuit. The converter further includes one or more bypass transistor switches to selectively provide an additional output current. The converter includes a common controller that controls the plurality of main switches and the one or more bypass transistor switches.

公开(公告)号：US20160380537A1

公开(公告)日：2016-12-29

申请号：US14749170

申请日：2015-06-24

Applicant: Infineon Technologies AG

Inventor： Luca Bizjak ,  Emanuele Bodano ,  Stefano Marsili ,  Joachim Pichler

IPC: H02M3/158 ,  H02M1/36

CPC classification number: H02M3/158 ,  H02M1/36 ,  H02M3/156 ,  H02M2001/0022

Abstract: In accordance with an embodiment, a method of operating a switched-mode power supply (SMPS) includes starting up the switched-mode power supply by determining a rate of increase of a duty cycle of a pulse width modulated (PWM) signal based on an input voltage and a switching frequency of the SMPS; and generating the PWM signal having the duty cycle in accordance with determined rate of increase.

Abstract translation: 根据一个实施例，一种操作开关模式电源（SMPS）的方法包括通过确定基于脉宽调制（PWM）信号的脉宽调制（PWM）信号的占空比的增加速率来启动开关模式电源 输入电压和SMPS的开关频率; 以及根据确定的增加速率产生具有占空比的PWM信号。

公开(公告)号：US20150212160A1

公开(公告)日：2015-07-30

申请号：US14601903

申请日：2015-01-21

Applicant: Infineon Technologies AG

Inventor： Stefano Marsili ,  Christoph Unterrieder

IPC: G01R31/36

CPC classification number: G01R31/362 ,  G01R31/3651

Abstract: Methods and apparatuses for determining a state of charge of a battery are provided, wherein measurements of a terminal voltage of the battery and stored precharacterization parameters are used for determining the state of charge.

Abstract translation: 提供了用于确定电池的充电状态的方法和装置，其中使用电池的端子电压和存储的预特性参数的测量来确定充电状态。

公开(公告)号：US20140372056A1

公开(公告)日：2014-12-18

申请号：US14303531

申请日：2014-06-12

Applicant: INFINEON TECHNOLOGIES AG

Inventor： Michael Lunglmayr ,  Stefano Marsili ,  Christoph Unterrieder

IPC: G01R31/36

CPC classification number: G01R31/367 ,  G01R31/387

Abstract: Methods and devices for determining at least one parameter of a model of a technical installation are provided. In this case, the parameters are updated on the basis of measurements as a function of an observation matrix. The observation matrix is prescribed as a function of the model and being able, if appropriate, to depend on a time variable which can be measured.

Abstract translation: 提供了用于确定技术装置的模型的至少一个参数的方法和装置。 在这种情况下，基于作为观察矩阵的函数的测量来更新参数。 观察矩阵是作为模型的函数规定的，并且如果合适，则能够依赖于可以测量的时间变量。

公开(公告)号：US11280844B2

公开(公告)日：2022-03-22

申请号：US16780345

申请日：2020-02-03

Applicant: Infineon Technologies AG

Inventor： Klaus Hoermaier ,  Guenter Hofer ,  Stefano Marsili

IPC: G01R31/396 ,  G01R31/3835 ,  G01R31/389

Abstract: Various examples relate to techniques of monitoring a reliability of a cell-impedance measurement of a battery cell. In one example, a device includes a first interface configured to inject an AC excitation current into a battery cell and a shunt resistor coupled in parallel to the battery cell. The device also includes a second interface configured to inject an AC test current into the shunt resistor. The device also includes analog-to-digital converters configured to measure a cell voltage across the battery cell associated with the AC excitation current, a shunt voltage across the shunt resistor associated with the AC excitation current and the shunt voltage across the shunt resistor associated with the AC test current.

公开(公告)号：US10560018B2

公开(公告)日：2020-02-11

申请号：US15668213

申请日：2017-08-03

Applicant: Infineon Technologies AG ,  pmdtechnologies ag

Inventor： Christoph Unterrieder ,  Franz Michael Darrer ,  Stefano Marsili

IPC: H02M3/137 ,  G01S7/484 ,  H05B33/08

Abstract: Devices and methods are provided related to modulated power supplies. The device includes an inductor. When a load is to be supplied with power, a terminal of the inductor is coupled to the load. When the load is not to be supplied with power, terminals of the inductor may be coupled with each other.