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1.发明授权公开(公告)号：US11832523B2
公开(公告)日：2023-11-28
申请号：US17075255
申请日：2020-10-20
Inventor： John P. Lesso
IPC: H01L41/04 , H01L41/107 , H10N30/80 , H10N30/40
CPC classification number: H10N30/804 , H10N30/40
Abstract: The present disclosure relates to circuitry for driving a piezoelectric transducer. The circuitry may be implemented as an integrated circuit and comprises driver circuitry configured to supply a drive signal to the piezoelectric transducer to cause the transducer to generate an output signal and active inductor circuitry configured to be coupled with the piezoelectric transducer. The active inductor circuitry may be tuneable to adjust a frequency characteristic of the output signal.
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公开(公告)号：US20230180616A1
公开(公告)日：2023-06-08
申请号：US18061684
申请日：2022-12-05
Inventor： Ghislain DESPESSE , Mustapha TOUHAMI , Valentin BRETON
CPC classification number: H10N30/40 , H02M3/155 , H10N30/804
Abstract: A converter of an input voltage into at least one output voltage, including a pair of first and second piezoelectric assemblies; a first bridge including two first switching branches each having at least one first switch; a second bridge including two second switching branches each having at least one second switch; each piezoelectric assembly including a first end connected to the first bridge and a second end connected to the second bridge; each first switch being connected between a terminal of the input voltage and a first end; each second switch being connected between a terminal of the output voltage and a second end. It includes at least one complementary switch connected directly between the ends of a pair of piezoelectric assemblies, connected to a same bridge,
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公开(公告)号：US12010787B2
公开(公告)日：2024-06-11
申请号：US17635124
申请日：2020-08-11
Applicant: TDK Electronics AG
Inventor： Robert Krumphals , Stefan Breuer , Daniel Neuwirth , Thomas Koidl
IPC: H05H1/24 , H01L41/047 , H01L41/107 , H10N30/40
CPC classification number: H05H1/2481 , H10N30/40 , H05H2240/10 , H05H2240/20
Abstract: A device including an electroceramic component having a first area and a second area, a potting compound at least partially surrounding the electroceramic component, and a sleeve-shaped housing which at least partially surrounds the potting compound. The housing has, in a first housing section that surrounds the potting compound in the first area of the electroceramic component, a material wherein the thermal conductivity of said material is greater than the thermal conductivity of a material of the housing in a second housing section. The housing in the second housing section surrounding the potting compound in the second area of the electroceramic component includes a non-conductive material.
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公开(公告)号：US20230180615A1
公开(公告)日：2023-06-08
申请号：US18061262
申请日：2022-12-02
Inventor： Ghislain DESPESSE , Mustapha TOUHAMI , Valentin BRETON
CPC classification number: H10N30/40 , H02M1/0058 , H02M3/06
Abstract: This electrical energy converter comprises:
a first bridge comprising at least a first switching branch between two terminals of an input voltage and including two first switches connected at a first midpoint;
a second bridge comprising at least a second switching branch between two terminals of an output voltage and including two second switches connected at a second midpoint;
at least one piezoelectric assembly connected between respective first and second midpoints; and
at least one switching aid circuit connected to a respective midpoint and configured to, via the flow of a previously received current, discharge a parasitic capacitance of a switch of the bridge to which it is connected, and respectively charge a parasitic capacitance of another switch of said bridge.
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公开(公告)号：US12102009B2
公开(公告)日：2024-09-24
申请号：US17112402
申请日：2020-12-04
Applicant: Relyon Plasma GmbH , TDK Electronics AG
Inventor： Stefan Nettesheim , Klaus Forster , Markus Puff , Johann Pichler
CPC classification number: H10N30/883 , H01G4/12 , H01G4/224 , H01G4/40 , H10N30/40
Abstract: A device (1) comprising an electro-ceramic component (2) which has a first electrical contact (3A), provided on a first side face (2A) of the electro-ceramic component (2) in the excitation zone (11), and a second electrical contact (3B) provided on a second side face (2B) of the electro-ceramic component (2). A sealing compound (20) is placed around the electro-ceramic component (2) so that the first electrical contact (3A) and the second electrical contact (3B) are covered by the sealing compound (20) and a free end (26) of a section (24) of the high-voltage zone (12) of the electro-ceramic component (2) projects beyond a free end (22) of the sealing compound (20).
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6.发明公开
公开(公告)号：US20240306508A1
公开(公告)日：2024-09-12
申请号：US18665268
申请日：2024-05-15
Applicant: UltraSense Systems, Inc.
Inventor： Hao-Yen Tang , Sina Akhbari , Mo Maghsoudnia
Abstract: A system includes a piezoelectric capacitor assembly and signal processing circuitry coupled to the piezoelectric capacitor assembly. The piezoelectric capacitor assembly includes a piezoelectric member and piezoelectric capacitors located at respective lateral positions along the piezoelectric member. Each piezoelectric capacitor includes: (1) a respective portion of the piezoelectric member, (2) a first electrode, and (3) a second electrode. The first and second electrodes are positioned on opposite side of the piezoelectric member. The piezoelectric capacitors include piezoelectric force-measuring elements (PFEs). The PFEs are configured to output voltage signals between the respective first electrode and the respective second electrode in accordance with a time-varying strain at the respective portion of the piezoelectric member between the respective first electrode and the respective second electrode resulting from a low-frequency mechanical deformation. The signal processing circuitry is configured to read at least some of the PFE voltage signals.
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公开(公告)号：US11812665B1
公开(公告)日：2023-11-07
申请号：US16402265
申请日：2019-05-03
Applicant: QorTek, Inc.
Inventor： Ahmet Erkan Gurdal , Sinan Dursun , Safakcan Tuncdemir , Clive Randall
IPC: H01L41/107 , C04B35/499 , C04B35/622 , C04B35/64 , H10N30/40 , H10N30/053 , H10N30/50 , H10N30/87 , H10N30/853
CPC classification number: H10N30/40 , C04B35/499 , C04B35/62222 , C04B35/64 , H10N30/053 , H10N30/505 , H10N30/8554 , H10N30/871 , H10N30/872 , H10N30/877 , C04B2235/3203 , C04B2235/3234 , C04B2235/3255 , C04B2235/326 , C04B2235/3267 , C04B2235/3296 , C04B2235/442
Abstract: A composition includes at least one Pb/Ni/Nb - Pb/Mg/W - Pb/Zr/Ti mixed oxide. A piezoelectric device may be made by providing at least two layers comprising the composition and coated with an outer electrode material; providing a plurality of layers comprising the composition and coated with an inner electrode material; combining or stacking a plurality of layers coated with inner electrode materials between two outer electrodes; and sintering or co-firing the inner electrode materials and outer electrode materials at a temperature at or below about 1000° C.
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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
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.
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公开(公告)号：US12096695B2
公开(公告)日：2024-09-17
申请号：US17213573
申请日：2021-03-26
Applicant: TDK CORPORATION
Inventor： Yuiko Hirose , Hiroki Katoh , Yumi Akiyama
IPC: H10N30/50 , H10N30/045 , H10N30/053 , H10N30/20 , H10N30/40 , H10N30/853 , H10N30/87
CPC classification number: H10N30/50 , H10N30/045 , H10N30/053 , H10N30/20 , H10N30/40 , H10N30/8542 , H10N30/8554 , H10N30/871 , H10N30/877
Abstract: Provided is a piezoelectric element according to the invention including a stacked body in which a piezoelectric layer and an internal electrode layer are stacked. In addition, the internal electrode layer contains at least one kind of element selected from palladium, nickel, platinum, gold, and silver, and copper, and the content of copper contained in the internal electrode layer is 1 to 50 at % in terms of a copper element.
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公开(公告)号：US12009795B2
公开(公告)日：2024-06-11
申请号：US17119904
申请日：2020-12-11
Applicant: Skyworks Solutions, Inc.
Inventor： Benjamin Paul Abbott , Rei Goto
CPC classification number: H03H3/08 , H10N30/40 , H03H2003/0435 , H10N30/50
Abstract: A surface acoustic wave device is disclosed. The surface acoustic wave device can include a single crystal support layer, an intermediate single crystal layer positioned over the single crystal support layer, a lithium based piezoelectric layer positioned over the intermediate single crystal layer, and an interdigital transducer electrode positioned over the lithium based piezoelectric layer, the surface acoustic wave device configured to generate a surface acoustic wave. The single crystal layer can be a quartz layer, such as a z-propagation quartz layer. A thermal conductivity of the single crystal support layer is greater than a thermal conductivity of the intermediate single crystal layer, and the thermal conductivity of the single crystal support layer is greater than a thermal conductivity of the lithium based piezoelectric layer.
