公开(公告)号：US10531552B2

公开(公告)日：2020-01-07

申请号：US16077414

申请日：2017-02-07

Applicant: EPCOS AG

Inventor： Pavol Kudela ,  Franz Rinner ,  Markus Puff

IPC: H01L41/107 ,  H05H1/24 ,  H01L41/04

Abstract: A device for generating an atmospheric-pressure plasma is disclosed. In an embodiment the device includes a piezoelectric transformer comprising an input region and an output region, wherein the input region is designed to convert an applied alternating voltage into a mechanical oscillation, wherein the output region is designed to convert a mechanical oscillation into a voltage, and wherein the output region adjoins the input region in a longitudinal direction, a contact element fastened to the piezoelectric transformer, the contact element being designed to apply the alternating voltage to the input region and a holder, wherein the contact element is connected to the holder by a form-fit connection, in such a manner that a movement of the piezoelectric transformer in the longitudinal direction, relative to the holder, is prevented.

公开(公告)号：US12207559B2

公开(公告)日：2025-01-21

申请号：US17233009

申请日：2021-04-16

Applicant: EPCOS AG

Inventor： Michael Weilguni ,  Markus Puff ,  Pavol Kudela ,  Bernhard Döllgast

IPC: H10N30/40 ,  C01B13/11 ,  H05H1/24

Abstract: In an embodiment a method includes applying an AC voltage to an input region, converting, by the input region, the AC voltage into a mechanical oscillation, converting, by an output region, the mechanical oscillation into an electrical voltage and igniting a plasma at an output-side end side of an piezoelectric transformer, wherein the piezoelectric transformer includes the input region and the output region, wherein the piezoelectric transformer includes a longest edge and a shortest edge, and wherein the longest edge has a length that is twenty times a length of the shortest edge or less.

公开(公告)号：US11251358B2

公开(公告)日：2022-02-15

申请号：US15746763

申请日：2016-06-27

Applicant: EPCOS AG

Inventor： Bernhard Doellgast ,  Markus Puff ,  Pavol Kudela

IPC: H01L41/047 ,  H01L41/053 ,  H01L41/107 ,  H01L23/32 ,  H01L41/187

Abstract: The present invention relates to a holder (5) for a piezoelectric component (1), having a clamping device (6) and two contact elements (8) which contain a conductive rubber material, wherein the clamping device (6) is designed to clamp the piezoelectric component (1) between the contact elements (8) in a closed state, and wherein the contact elements (8) are in electrical contact with the piezoelectric component (1) in the closed state of the clamping device (6).

公开(公告)号：US20190098739A1

公开(公告)日：2019-03-28

申请号：US16083430

申请日：2017-02-23

Applicant: EPCOS AG

Inventor： Michael Weilguni ,  Markus Puff ,  Pavol Kudela

IPC: H05H1/24 ,  H01L41/04 ,  H01L41/107 ,  C01B13/11

Abstract: A process for producing ozone and an apparatus for ozone generation are disclosed. In an embodiment, a process for producing ozone includes applying an input voltage to an input area of a piezoelectric transformer so that a high voltage is generated in an output area of the piezoelectric transformer, surrounding the piezoelectric transformer with an oxygenic process gas so that the ozone is formed from the process gas by the high voltage generated in the output area, measuring an amount of the generated ozone using a sensor and adapting the input voltage applied to the piezoelectric transformer on a basis of the measured amount of the generated ozone in order to set an ozone generation rate.

公开(公告)号：US20190053366A1

公开(公告)日：2019-02-14

申请号：US16077414

申请日：2017-02-07

Applicant: EPCOS AG

Inventor： Pavol Kudela ,  Franz Rinner ,  Markus Puff

IPC: H05H1/24 ,  H01L41/107 ,  H01L41/04

CPC classification number: H05H1/2475 ,  H01L41/044 ,  H01L41/107 ,  H05H2001/2481

Abstract: A device for generating an atmospheric-pressure plasma is disclosed. In an embodiment the device includes a piezoelectric transformer comprising an input region and an output region, wherein the input region is designed to convert an applied alternating voltage into a mechanical oscillation, wherein the output region is designed to convert a mechanical oscillation into a voltage, and wherein the output region adjoins the input region in a longitudinal direction, a contact element fastened to the piezoelectric transformer, the contact element being designed to apply the alternating voltage to the input region and a holder, wherein the contact element is connected to the holder by a form-fit connection, in such a manner that a movement of the piezoelectric transformer in the longitudinal direction, relative to the holder, is prevented.

公开(公告)号：US20210329770A1

公开(公告)日：2021-10-21

申请号：US17361864

申请日：2021-06-29

Applicant: EPCOS AG

Inventor： Michael Weilguni ,  Markus Puff ,  Pavol Kudela

IPC: H05H1/24 ,  C01B13/11 ,  H01L41/04 ,  H01L41/107

Abstract: In an embodiment a process for producing ozone includes applying an input voltage to an input area of a piezoelectric transformer so that a high voltage is generated in an output area of the piezoelectric transformer, wherein the piezoelectric transformer is operated in a pulsed manner such that phases in which the input voltage is applied to the piezoelectric transformer and phases in which the input voltage is not applied to the piezoelectric transformer alternate at regular intervals and surrounding the piezoelectric transformer with an oxygenic process gas so that the ozone is formed from the process gas by the high voltage generated in the output area.

公开(公告)号：US20200187343A1

公开(公告)日：2020-06-11

申请号：US16084192

申请日：2017-01-25

Applicant: EPCOS AG

Inventor： Michael Weilguni ,  Pavol Kudela

IPC: H05H1/24 ,  H01L41/04 ,  H01L41/107

Abstract: An apparatus and a method for generating a non-thermal atmospheric pressure plasma are disclosed. In an embodiment, an apparatus for generating a non-thermal atmospheric-pressure plasma includes a first piezoelectric transformer, a second piezoelectric transformer, and a drive circuit configured to apply an input voltage to each of the piezoelectric transformers, and wherein the input voltage applied to the first transformer is phase-shifted by 90° in relation to the input voltage applied to the second transformer.

公开(公告)号：US20190051813A1

公开(公告)日：2019-02-14

申请号：US16077424

申请日：2017-01-10

Applicant: EPCOS AG

Inventor： Bernhard Döllgast ,  Markus Puff ,  Pavol Kudela ,  Michael Weilguni

IPC: H01L41/107 ,  H01L41/257 ,  H01L21/66 ,  H05H1/24

Abstract: A piezoelectric transformer and a method for producing a piezoelectric transformer are disclosed. In an embodiment, the method includes manufacturing a main body having an input region having electrodes and a first piezoelectric material being alternately stacked one on top of the other. An output region includes a second piezoelectric material. The first piezoelectric material is polarized and a removable contact is fitted to an output-side end side of the main body, which end side faces away from the input region. A first electrical potential is applied to the removable contact for polarizing the second piezoelectric material.

公开(公告)号：US20180375013A1

公开(公告)日：2018-12-27

申请号：US15777625

申请日：2016-11-15

Applicant: EPCOS AG

Inventor： Michael Weilguni ,  Markus Puff ,  Pavol Kudela ,  Bernhard Döllgast

IPC: H01L41/107 ,  H05H1/24 ,  C01B13/11

Abstract: A piezoelectric transformer is disclosed. In an embodiment a piezoelectric transformer includes an input region and an output region, wherein the input region is configured to convert an AC voltage into a mechanical oscillation, wherein the output region is configured to convert a mechanical oscillation into an electrical voltage, wherein the piezoelectric transformer includes a longest edge and a shortest edge, and wherein the longest edge includes a length that is twenty times a length of the shortest edge or less.

公开(公告)号：US11792910B2

公开(公告)日：2023-10-17

申请号：US17361864

申请日：2021-06-29

Applicant: EPCOS AG

Inventor： Michael Weilguni ,  Markus Puff ,  Pavol Kudela

IPC: H05H1/24 ,  C01B13/11 ,  H10N30/40 ,  H10N30/80

CPC classification number: H05H1/2475 ,  C01B13/115 ,  H10N30/40 ,  H10N30/804 ,  H05H1/2481

Abstract: In an embodiment a process for producing ozone includes applying an input voltage to an input area of a piezoelectric transformer so that a high voltage is generated in an output area of the piezoelectric transformer, wherein the piezoelectric transformer is operated in a pulsed manner such that phases in which the input voltage is applied to the piezoelectric transformer and phases in which the input voltage is not applied to the piezoelectric transformer alternate at regular intervals and surrounding the piezoelectric transformer with an oxygenic process gas so that the ozone is formed from the process gas by the high voltage generated in the output area.