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    Device for producing haptic feedback
    2.
    发明授权
    Device for producing haptic feedback 有权

    公开(公告)号：US11073913B2

    公开(公告)日：2021-07-27

    申请号：US16331511

    申请日：2017-08-03

    Applicant: TDK Electronics AG

    Inventor： Franz Rinner ,  Harald Kastl

    IPC: H01L41/09 ,  H02N2/04 ,  G06F3/041 ,  H01L41/083 ,  G06F3/01 ,  H01L41/187 ,  H01L41/273

    Abstract: In an embodiment a device includes at least one piezoelectric actuator including a plurality of piezoelectric layers and a first reinforcing element and a second reinforcing element, wherein the piezoelectric actuator is arranged between the reinforcing elements, wherein the piezoelectric actuator is configured to alter its expansion in a first direction when an electrical voltage is applied, and wherein the reinforcing elements are configured to deform on account of a change in an expansion of the piezoelectric actuator such that a central region of the respective reinforcing element is moved relative to the piezoelectric actuator in a second direction, the second direction being perpendicular to the first direction.

    Apparatus for Producing a Haptic Feedback
    5.
    发明申请
    Apparatus for Producing a Haptic Feedback 有权

    公开(公告)号：US20210141456A1

    公开(公告)日：2021-05-13

    申请号：US17045136

    申请日：2019-04-02

    Applicant: TDK Electronics AG

    Inventor： Daniel Neuwirth ,  Harald Kastl

    IPC: G06F3/01 ,  G06F3/041

    Abstract: In an embodiment an apparatus includes a base plate, an interface with a touch-sensitive surface, a piezoelectric actuator and a mechanical reinforcing element, wherein the mechanical reinforcing element is fastened to the piezoelectric actuator, wherein the mechanical reinforcing element is fastened to the interface, wherein the mechanical reinforcing element is configured to deform, as a result of a change of an extension of the piezoelectric actuator, in a first direction such that a partial region of the mechanical reinforcing element is moved relative to the piezoelectric actuator in a second direction perpendicular to the first direction and a force is applied to the interface, wherein the interface is moved, by the force applied, in a direction lateral to the touch-sensitive surface, or wherein the interface is moved, by the force applied, in a direction perpendicular to the touch-sensitive surface.

    Apparatus for producing a haptic feedback
    6.
    发明授权
    Apparatus for producing a haptic feedback 有权

    公开(公告)号：US11592905B2

    公开(公告)日：2023-02-28

    申请号：US17809663

    申请日：2022-06-29

    Applicant: TDK Electronics AG

    Inventor： Daniel Neuwirth ,  Harald Kastl

    IPC: G06F3/01 ,  G06F3/0338 ,  G06F3/041

    Abstract: In an embodiment an apparatus includes a base plate, an interface with a touch-sensitive surface, a piezoelectric actuator and a mechanical reinforcing element, wherein the mechanical reinforcing element is fastened to the piezoelectric actuator, wherein the mechanical reinforcing element is fastened to the interface, wherein the mechanical reinforcing element is configured to deform, as a result of a change of an extension of the piezoelectric actuator, in a first direction such that a partial region of the mechanical reinforcing element is moved relative to the piezoelectric actuator in a second direction perpendicular to the first direction and a force is applied to the interface, wherein the interface is moved, by the force applied, in a direction lateral to the touch-sensitive surface, or wherein the interface is moved, by the force applied, in a direction perpendicular to the touch-sensitive surface.

    Apparatus for Producing a Haptic Feedback
    7.
    发明申请
    Apparatus for Producing a Haptic Feedback 有权

    公开(公告)号：US20220326775A1

    公开(公告)日：2022-10-13

    申请号：US17809663

    申请日：2022-06-29

    Applicant: TDK Electronics AG

    Inventor： Daniel Neuwirth ,  Harald Kastl

    IPC: G06F3/01 ,  G06F3/041

    Abstract: In an embodiment an apparatus includes a base plate, an interface with a touch-sensitive surface, a piezoelectric actuator and a mechanical reinforcing element, wherein the mechanical reinforcing element is fastened to the piezoelectric actuator, wherein the mechanical reinforcing element is fastened to the interface, wherein the mechanical reinforcing element is configured to deform, as a result of a change of an extension of the piezoelectric actuator, in a first direction such that a partial region of the mechanical reinforcing element is moved relative to the piezoelectric actuator in a second direction perpendicular to the first direction and a force is applied to the interface, wherein the interface is moved, by the force applied, in a direction lateral to the touch-sensitive surface, or wherein the interface is moved, by the force applied, in a direction perpendicular to the touch-sensitive surface.

    Driver circuit for analyzing and controlling a piezoelectric component, button providing haptic feedback, and operating method
    8.
    发明授权
    Driver circuit for analyzing and controlling a piezoelectric component, button providing haptic feedback, and operating method 有权

    公开(公告)号：US11223356B2

    公开(公告)日：2022-01-11

    申请号：US16493526

    申请日：2018-03-16

    Applicant: TDK Electronics AG

    Inventor： Roman Puchleitner ,  Harald Kastl ,  Aditya Rajapurkar ,  Daniel Neuwirth

    IPC: H03K17/96 ,  G06F3/01 ,  H01L41/04 ,  H02M3/335 ,  H03F3/217

    Abstract: A driver circuit is disclosed. In an embodiment a drive circuit includes a signal port with a first terminal and a second terminal, a first node and a second node, a comparator with an inverting input, a non-inverting input and an output and an operational amplifier with an inverting input, a non-inverting input and an output, wherein the first terminal is electrically conductively connected with the inverting input of the operational amplifier, wherein the second terminal is electrically conductively connected with the non-inverting input of the comparator, wherein the inverting input of the comparator is electrically conductively connected with the output of the operational amplifier, wherein the first node is electrically conductively connected with the output of the operational amplifier, wherein the inverting input of the comparator is electrically conductively connected with the inverting input of the operational amplifier, and wherein the second node is electrically conductively connected with the non-inverting input of the operational amplifier.

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