公开(公告)号：US11283433B2

公开(公告)日：2022-03-22

申请号：US17097888

申请日：2020-11-13

Applicant: WEBASTO SE

Inventor： Paul Leinsle ,  Jürgen Scherschmidt ,  Markus Prepens

IPC: H03K5/04 ,  B60L53/20 ,  B60L1/08 ,  H02M1/08 ,  H03K17/567

Abstract: A method for the PWM actuation of more than one HV component for converting the power required by the HV components, in which each HV component is actuated by means of an individual PWM control circuit, and to a device for carrying out the method, wherein individual PWM control circuits are provided for the PWM actuation of 2 . . . n HV components, and wherein means are provided for asymmetrically splitting the phase shifts of the individual PWM actuation provided by the PWM circuitry.

公开(公告)号：US20220216684A1

公开(公告)日：2022-07-07

申请号：US17606689

申请日：2020-03-17

Applicant: Webasto SE

Inventor： Jürgen Scherschmidt

IPC: H02H1/00 ,  H02H3/16

Abstract: The invention relates to a device for detecting an electric arc in an electronic assembly, having: a transmission unit for generating an output signal, and an evaluation unit for receiving the output signal, where the transmission unit and the evaluation unit are connected to one another, where the transmission unit comprises an oscillator unit that generates an output signal having a frequency and/or an amplitude, and where the evaluation unit is configured to detect deviations, caused by an arc, in the output signal from the transmission unit. There is in particular a provision to implement the oscillator unit by way of a modified Pierce oscillator having an inverter, where the quartz is replaced by a detector coil. The invention furthermore relates to an electronic assembly of a motor vehicle having an apparatus to be controlled, in particular having a heating apparatus and having said device, and to a method for detecting an electric arc in an electronic assembly.

公开(公告)号：US20210288642A1

公开(公告)日：2021-09-16

申请号：US17097888

申请日：2020-11-13

Applicant: WEBASTO SE

Inventor： Paul Leinsle ,  Jürgen Scherschmidt ,  Markus Prepens

IPC: H03K17/567 ,  H02M1/08 ,  B60L53/20 ,  B60L1/08

Abstract: A method for the PWM actuation of more than one HV component for converting the power required by the HV components, in which each HV component is actuated by means of an individual PWM control circuit, and to a device for carrying out the method, wherein individual PWM control circuits are provided for the PWM actuation of 2 . . . n HV components, and wherein means are provided for asymmetrically splitting the phase shifts of the individual PWM actuation provided by the PWM circuitry.

公开(公告)号：US11843237B2

公开(公告)日：2023-12-12

申请号：US17606689

申请日：2020-03-17

Applicant: Webasto SE

Inventor： Jürgen Scherschmidt

IPC: H02H1/00 ,  H02H3/16

CPC classification number: H02H1/0015 ,  H02H3/16

Abstract: The invention relates to a device for detecting an electric arc in an electronic assembly, having: a transmission unit for generating an output signal, and an evaluation unit for receiving the output signal, where the transmission unit and the evaluation unit are connected to one another, where the transmission unit comprises an oscillator unit that generates an output signal having a frequency and/or an amplitude, and where the evaluation unit is configured to detect deviations, caused by an arc, in the output signal from the transmission unit. There is in particular a provision to implement the oscillator unit by way of a modified Pierce oscillator having an inverter, where the quartz is replaced by a detector coil. The invention furthermore relates to an electronic assembly of a motor vehicle having an apparatus to be controlled, in particular having a heating apparatus and having said device, and to a method for detecting an electric arc in an electronic assembly.