中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

16 records (took 0.02 seconds)

    TRANSISTOR BRIDGE FAILURE TEST
    11.
    发明申请
    TRANSISTOR BRIDGE FAILURE TEST 审中-公开

    公开(公告)号：US20200348366A1

    公开(公告)日：2020-11-05

    申请号：US16932435

    申请日：2020-07-17

    Applicant: Infineon Technologies AG

    Inventor： Alexander Heinz ,  Matthias Bogus

    IPC: G01R31/50 ,  G01R31/44 ,  G01R31/42 ,  G01R19/165

    Abstract: A driver circuit arrangement for driving a transistor bridge, which includes at least a first half-bridge composed of a low-side transistor and a high-side transistor, is described herein. In accordance with one example of the description, the circuit includes a current source and a detection circuit. The current source is operably coupled to the high-side transistor of the first half-bridge and configured to supply a test current to the first half bridge. The detection circuit is configured to compare a voltage sense signal, which represents the voltage across the high-side transistor of the first half-bridge, with at least one first threshold to detect, dependent on the result of this comparison, whether a short-circuit is present in the first half-bridge.

    Open pin detection for analog-to-digital converter
    12.
    发明授权
    Open pin detection for analog-to-digital converter 有权

    公开(公告)号：US10574258B1

    公开(公告)日：2020-02-25

    申请号：US16387050

    申请日：2019-04-17

    Applicant: Infineon Technologies AG

    Inventor： Siegfried Albel ,  Matthias Bogus ,  Christian Heiling ,  Jaafar Mejri ,  Markus Zannoth

    IPC: H03M3/00 ,  H03M7/30

    Abstract: A method includes applying a current to an input pin of an integrated circuit; converting an analog signal at the input pin to a digital stream using a Sigma-Delta modulator; converting the digital stream to a first digital output signal proportional to the analog signal in a first input range between a first analog signal value and a second analog signal value, where the first input range corresponds to a pre-determined range of the analog signal smaller than a full-scale input range of the analog signal; converting the digital stream to a second output signal; comparing the second output signal to a first threshold corresponding to a third analog signal value at the input pin that is outside of the first input range; and providing an indication of an open circuit condition at the input pin when the second output signal crosses the first threshold.

    System and Method of Synchronizing a Switching Signal
    13.
    发明申请
    System and Method of Synchronizing a Switching Signal 审中-公开

    公开(公告)号：US20190013748A1

    公开(公告)日：2019-01-10

    申请号：US16003944

    申请日：2018-06-08

    Applicant: Infineon Technologies AG

    Inventor： Jens Barrenscheen ,  Matthias Bogus ,  Christian Heiling

    IPC: H02P6/10 ,  H02P6/15 ,  G06F1/08

    Abstract: In accordance with an embodiment, a method includes generating a clock signal; generating a switching signal based on the clock signal; generating a synchronization signal having an edge transition corresponding to a predetermined phase of the switching signal; transmitting the synchronization signal to a master controller; receiving a frequency adjustment command from the master controller based on the transmitted synchronization signal; and adjusting a frequency of the clock signal based on the frequency adjustment command.

    CALCULATION OF MOSFET SWITCH TEMPERATURE IN MOTOR CONTROL
    16.
    发明申请
    CALCULATION OF MOSFET SWITCH TEMPERATURE IN MOTOR CONTROL 有权
    电机控制中MOSFET开关温度的计算

    公开(公告)号：US20170077862A1

    公开(公告)日：2017-03-16

    申请号：US14853627

    申请日：2015-09-14

    Applicant: Infineon Technologies AG

    Inventor： Christian Heiling ,  Matthias Bogus

    IPC: H02P29/00 ,  G01K7/00

    CPC classification number: H02P29/68 ,  G01K7/00 ,  G01K7/427 ,  G01K2205/00 ,  G01K2217/00

    Abstract: Systems and techniques are described for monitoring the operating temperature of one or more circuit elements, such as a metal oxide field effect transistor (MOSFET) switch, where the circuit element is used to control at least one phase of an electric motor. The systems and techniques may calculate temperature by determining at least two electrical signals from the circuit element taken at least two different times. This results in an accurate temperature calculation without requiring precise knowledge of the particular characteristics of each respective circuit element.

    Abstract translation: 描述了用于监测一个或多个电路元件（例如金属氧化物场效应晶体管（MOSFET））开关的操作温度的系统和技术，其中电路元件用于控制电动机的至少一个相。 系统和技术可以通过至少两个不同时间确定来自电路元件的至少两个电信号来计算温度。 这导致精确的温度计算，而不需要对每个相应电路元件的特定特性的精确了解。

Patent Agency Ranking