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21.
公开(公告)号:US20190008027A1
公开(公告)日:2019-01-03
申请号:US15748590
申请日:2016-07-08
Applicant: EPCOS AG
Inventor: Michael WEILGUNI , Markus PUFF
IPC: H05H1/24 , H01L41/107 , H01L41/04
Abstract: A method for frequency control of a piezoelectric transformer and a circuit arrangement including a piezoelectric transformer are disclosed. In an embodiment, the method includes exciting a piezoelectric transformer on an input side with an AC voltage of predetermined frequency as input voltage, capturing a phase information for an input impedance of the piezoelectric transformer in a feedback path, evaluating the captured phase information in respect of a predetermined phase criterion, and regulating the frequency of the AC voltage on a basis of the evaluated phase information.
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公开(公告)号:US20190006118A1
公开(公告)日:2019-01-03
申请号:US16067583
申请日:2016-12-29
Applicant: EPCOS AG
Inventor: Norbert Will , Fabio Augusto Bueno De Camargo Mello , Igor Peretta , Paulo Faria
Abstract: A capacitor component is disclosed. In an embodiment a capacitor component includes a winding having an oval core hole, which has a maximum diameter and a minimum diameter, wherein the minimum diameter is smaller than the maximum diameter, and wherein the winding is designed such that a deformation of the winding that occurs only locally is producible by a force acting punctiformly on the winding.
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公开(公告)号:US10164165B2
公开(公告)日:2018-12-25
申请号:US15035198
申请日:2014-08-27
Applicant: EPCOS AG
Inventor: Peter Kraxner , Markus Puff
IPC: H01L41/04 , H01L41/107 , H01L41/047 , H05H1/24
Abstract: What is specified is a piezoelectric transformer (10) having a surface structure which has at least one protruding surface structure segment (5), wherein the piezoelectric transformer has a contour (3) and is suitable for discharging a gas in conjunction with a counter electrode (10) for generating a plasma, wherein the surface structure is configured such that the gas discharge takes place at a multiplicity of discharge initiation points (6) on the contour (3). A width of the surface structure segment (5) is smaller than the width of the piezoelectric transformer (1).
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公开(公告)号:US10148085B2
公开(公告)日:2018-12-04
申请号:US15123169
申请日:2015-02-19
Applicant: EPCOS AG
Inventor: Peter Bobert , Peter Heide
Abstract: A surge arrester is disclosed. In an embodiment the surge arrester includes a first electrode for applying a first voltage potential to the surge arrester, a second electrode for applying a second voltage potential to the surge arrester, and a short-circuiting link for short-circuiting the first and second electrodes. The surge arrester further includes a retaining element for retaining the short-circuiting link, wherein the retaining element is embodied in such a way that it keeps the short-circuiting link at a distance from the first and second electrodes when a temperature is below a threshold value, and it shifts the short-circuiting link such that the short-circuiting link is pressed against the first and second electrodes and a short-circuit is produced between the first and second electrodes when the temperature exceeds the threshold value.
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25.
公开(公告)号:US10099964B2
公开(公告)日:2018-10-16
申请号:US15510623
申请日:2015-09-08
Applicant: EPCOS AG
Inventor: Goushi Tauchi
IPC: C04B35/475 , H01G4/12 , C04B35/462 , C04B35/47 , H01B3/12 , C04B35/626 , C04B35/634 , C04B35/638 , C04B35/64 , H01G4/30
Abstract: A dielectric composition, a dielectric element, an electronic component and a laminated electronic component are disclosed. In various embodiment, the dielectric composition includes a main component represented by (BiaNabSrcLnd)TiO3, wherein Ln is at least one element selected from the group consisting of: La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho and Yb, and wherein a, b, c and d satisfy the following: 0
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公开(公告)号:US20180292272A1
公开(公告)日:2018-10-11
申请号:US15767098
申请日:2016-10-07
Applicant: EPCOS AG
Inventor: Martin Galler , Harald Kastl , Markus Puff
IPC: G01L1/16 , G01L5/00 , H01L41/047 , H01L41/083 , H01L41/113 , H01L41/187
Abstract: A sensor and a method for measuring a pressure are disclosed. In an embodiment the sensor includes a main body including a piezoelectric material and at least two internal electrodes arranged in the piezoelectric material, wherein the at least two internal electrodes are arranged in such a way that a voltage arises between the at least two internal electrodes when a pressure acts on a side surface of the main body that is provided for an application of pressure.
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公开(公告)号:US20180287043A1
公开(公告)日:2018-10-04
申请号:US15766798
申请日:2016-09-23
Applicant: EPCOS AG
Inventor: Michael WEILGUNI , Franz RINNER
IPC: H01L41/047 , H01L41/107 , H01L41/083 , H01L41/04 , H01L41/29
Abstract: The invention relates to a piezoelectric transformer having a piezoelectric element (1) of the length L, wherein an input voltage Uin can be applied on an input side (2) for being transformed into an output voltage Uout on the output side (3) according to a transformation ratio Uout/Uin=Ku. The piezoelectric element (1) comprises multiple plies (4a, 4b, 4c) of inner electrodes, which are arranged in multiple different layers (S1, S2, S3). Each ply (4a, 4b, 4c) of inner electrodes extends along at least one predetermined sub-section of a predetermined length, wherein sub-sections of plies (4a, 4c) of a first group of layers (S1, S3) and sub-sections of plies (4b) of a second group of layers (S2) have different dimensions, so that the piezoelectric transformer satisfies the following condition: Cin≤N2Cout, wherein Cin indicates the input capacitance, Cout indicates the output capacitance, and N indicates the transformation ratio of the ideal transformer.
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公开(公告)号:US10084309B2
公开(公告)日:2018-09-25
申请号:US14911155
申请日:2014-07-30
Applicant: EPCOS AG
Inventor: Peter Bobert , Eduard Dorsch , Frank Werner
Abstract: A spark gap arrangement includes a triggerable spark gap and a trigger circuit. The spark gap arrangement also includes a first and a second charge storage device, a voltage limiting component, a trigger diode, a triggerable arresting element, and a transformer. The voltage limiting component and the trigger diode are designed to relay an input pulse in a specified voltage range and charge the first charge storage device. Furthermore, the trigger circuit is designed such that the triggerable arresting element is connected via the first charge storage device dependent on the voltage and discharges the second charge storage device via a primary side of the transformer.
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29.
公开(公告)号:US20180222801A1
公开(公告)日:2018-08-09
申请号:US15745674
申请日:2016-06-16
Applicant: EPCOS AG
Inventor: Masakazu Hirose , Goushi Tauchi , Tomoya Imura , Tomohiro Terada
IPC: C04B35/47 , C04B35/475 , H01G4/12
CPC classification number: C04B35/47 , C04B35/462 , C04B35/475 , C04B2235/3201 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3224 , C04B2235/3227 , C04B2235/3229 , C04B2235/3284 , C04B2235/3298 , C04B2235/5445 , C04B2235/768 , C04B2235/80 , H01G4/1218 , H01G4/1227
Abstract: A dielectric composition, a dielectric element, an electronic component and a laminated electronic component are disclosed. In an embodiment the dielectric composition includes particles having a perovskite crystal structure including at least Bi, Na, Sr and Ti, wherein the dielectric composition includes at least one selected from among La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Yb, Ba, Ca, Mg and Zn, wherein the content of the at least one selected from among La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Yb, Ba, Ca, Mg and Zn is between 0.5 molar parts and 11.1 molar parts, taking the Ti content of the dielectric composition as 100 molar parts, wherein 0.17≤α≤2.83, where α is the molar ratio of Bi with respect to Sr in the dielectric composition.
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公开(公告)号:US20180212138A1
公开(公告)日:2018-07-26
申请号:US15746763
申请日:2016-06-27
Applicant: EPCOS AG
Inventor: Bernhard DOELLGAST , Markus PUFF , Pavol KUDELA
IPC: H01L41/047 , H01L41/187 , H01L41/053 , H01L41/107 , H01L23/32
CPC classification number: H01L41/0475 , H01L23/32 , H01L41/053 , H01L41/107 , 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).
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