公开(公告)号：EP1656704B1

公开(公告)日：2010-09-15

申请号：EP04785903.8

申请日：2004-05-12

申请人： Face International Corporation

发明人： Vazquez Carazo, Alfredo

IPC分类号： H01L41/107

CPC分类号： H01L41/107 ,  H02M7/003

公开(公告)号：EP1628396B1

公开(公告)日：2010-05-26

申请号：EP04726261.3

申请日：2004-04-07

申请人： MURATA MANUFACTURING CO., LTD.

发明人： KUBO, Ryuichi, c/o Murata Manufacturing Co., Ltd. ,  FUJII, Hidetoshi, Murata Manufacturing Co., Ltd. ,  AIZAWA, Naoko, c/o Murata Manufacturing Co., Ltd.

IPC分类号： H03H9/02 ,  H03H9/25 ,  H03H9/17 ,  H03H3/02 ,  H03H3/08 ,  H01L41/107 ,  H01L41/22

CPC分类号： H03H9/02133 ,  H03H3/02 ,  H03H3/08 ,  H03H9/0523 ,  H03H9/105 ,  H03H9/1092 ,  H03H9/174 ,  H03H9/588

公开(公告)号：EP2130238A1

公开(公告)日：2009-12-09

申请号：EP08716979.3

申请日：2008-02-20

申请人： Epcos AG

发明人： HOFFMANN, Christian ,  KARTASHEV, Igor ,  SCHMIDT-WINKEL, Patrick

IPC分类号： H01L41/107

CPC分类号： H01L41/107

摘要： The invention relates to a transformer arrangement having a piezoelectric transformer and a carrier (2). The transformer comprises a body (1) in the shape of a plate. The transformer operates with thickness modes of vibration. The body (1) is fixed to the carrier (2) in at least one peripheral region (11, 12, 13, 19), in which wave loops of a horizontal vibration of the body occur.

公开(公告)号：EP2057698A1

公开(公告)日：2009-05-13

申请号：EP07817741.7

申请日：2007-10-23

申请人： Epcos AG

发明人： FLORIAN, Heinz ,  KARTASHEV, Igor ,  SCHMIDT-WINKEL, Patrick

IPC分类号： H01L41/107

CPC分类号： H01L41/107 ,  H01L41/0475

摘要： A piezoelectric transformer is disclosed having a body (1) with two mechanically interconnected functional parts (2, 3). Each of the functional parts has a first and a second inner electrodes (4, 5, 6, 7) located on the body (1), perpendicularly to the main surface of the body (1). The first inner electrodes (4, 6) of each functional part are conductively connected to one another and to a first contact surface (12, 14) located on a main surface of the body (1). The second inner electrodes (5, 7) of each functional part are conductively connected to one another and to a second contact surface (13, 15) on a main surface of the body (1).

公开(公告)号：EP1628396A4

公开(公告)日：2009-01-07

申请号：EP04726261

申请日：2004-04-07

申请人： MURATA MANUFACTURING CO

发明人： KUBO RYUICHI ,  FUJII HIDETOSHI ,  AIZAWA NAOKO

IPC分类号： H03H9/02 ,  H01L41/107 ,  H03H3/02 ,  H03H3/08 ,  H03H9/10 ,  H03H9/17 ,  H03H9/25

CPC分类号： H03H9/02133 ,  H03H3/02 ,  H03H3/08 ,  H03H9/0523 ,  H03H9/105 ,  H03H9/1092 ,  H03H9/174 ,  H03H9/588

摘要： A piezoelectric electronic component suitably used in a portable phone or the like, and able to be downsized and made low in profile. A piezoelectric element (3) vibrated by an applied input signal, for outputting an output signal by the vibration is formed on a substrate (1). The piezoelectric element (3) is provided with a pad unit (3c1) for the above input and output signals. A shell member (5), as a sealing member consisting of an insulation film formed to cover the piezoelectric element (3) in a spaced-apart manner, is formed on the substrate (1). The shell member (5) has a through hole part (5a) above the pad unit (3c1) or the like, and the through hole part (5a) is closed by an electrode unit (17).

公开(公告)号：EP1932191A1

公开(公告)日：2008-06-18

申请号：EP06818014.0

申请日：2006-09-29

申请人： EPCOS AG

发明人： FLORIAN, Heinz ,  GABL, Reinhard ,  KARTASHEV, Igor ,  SCHMIDT-WINKEL, Patrick

IPC分类号： H01L41/107

CPC分类号： H01L41/107

摘要： The invention relates to a piezoelectric transformer comprising a base body provided with an input part (2) to which an output part (3) is mechanically connected. Internal electrodes (21, 22, 31, 32), which are positioned vertically to the transformer polarisation axis, are arranged in the input (2) and output (3) parts. Said transformer also comprises an auxiliary electrode (25), which is galvanically separated from the input and out put parts (2, 3), wherein at least one part of the auxiliary electrode (25) is located in a parallel position with respect to the internal electrodes (21, 22, 31, 32) of the input and out put parts (2, 3).

公开(公告)号：EP1027738B1

公开(公告)日：2007-08-29

申请号：EP98934174.8

申请日：1998-06-26

申请人： CTS Corporation

发明人： HALL, Dale, G. ,  PHILLIPS, James, R. ,  VAUGHN, Gary, L. ,  FORST, Donald ,  MECH, Harold, W.

IPC分类号： H01L41/107

CPC分类号： H01L41/107

摘要： A piezoelectric transformer (200) with voltage feedback is disclosed. The transformer comprises a piezoelectric plate of predetermined length (L), width (W) and height (H) with a driving section (202) having alternatingly stacked plurality of piezoelectric ceramic layers having internal interdigitated layers. A driven section (206) including an unpolarized dielectric section (208), a voltage feedback section (220) in the form of a multilayer electrode structure or an outer strip, and a normally unpolarized dielectric section (222) is also disclosed. The transformer generates an output voltage at an output terminal by the piezoelectric vibration transmitted from the driving section. A feedback control circuit is connected to the voltage feedback section. The isolated voltage feedback provides feedback control to keep the transformer operating at the proper resonant frequency even if there is a change in output load of the transformer.

公开(公告)号：EP1543568B1

公开(公告)日：2007-08-22

申请号：EP03769225.8

申请日：2003-09-29

申请人： EPCOS AG

发明人： GLAZOUNOV, Alexandre

IPC分类号： H01L41/107

CPC分类号： C04B35/493 ,  C04B2235/3251 ,  C04B2235/3262 ,  C04B2235/658 ,  H01L41/0477 ,  H01L41/107 ,  H01L41/187

摘要： The invention relates to a piezoelectric transformer comprising at least two ceramic elements and a copper-based electrode which is arranged therebetween. The inventive ceramic elements are made of a compound containing Pb (Zrx Ti 1-x) O3 + y Pb (Mn1/3 Nb2/3 ) O3.

公开(公告)号：EP1312099A4

公开(公告)日：2007-06-06

申请号：EP01952690

申请日：2001-07-13

申请人： BOYD CLARK DAVIS ,  FACE BRADBURY R

发明人： BOYD CLARK DAVIS ,  FACE BRADBURY R

IPC分类号： H01H57/00 ,  H01L41/04 ,  H01L41/107 ,  H02J13/00 ,  H02M7/48 ,  H05B41/282 ,  H01H47/00

CPC分类号： H05B41/2827 ,  H01H2239/076 ,  H01H2300/03 ,  H01L41/1134 ,  H02M7/48 ,  Y02B20/185

摘要： A self-powered switching device using a prestressed flextensional electrocative member (12) generates a signal for activation of a latching relay (90). The electroactive member (12) has a piezoelectric element with a concave face that may be compressed to generate an electrical pulse. The flextensional electroactive member (12) and associated signal generation circuitry (10) can be hardwired directly to the latching relay (90) or may be coupled to a transmitter (60) for sending an RF signal to a receiver (70) which actuates the latching relay (90).

公开(公告)号：EP1776724A1

公开(公告)日：2007-04-25

申请号：EP05774390.8

申请日：2005-08-04

申请人： EPCOS AG

发明人： FLORIAN, Heinz ,  GLAZUNOV, Alexander ,  KARTASHEV, Igor

IPC分类号： H01L41/107 ,  H01L41/04 ,  H01L41/24

CPC分类号： H01L41/257 ,  H01L41/107

摘要： The invention relates to a piezoelectric transformer comprising a base body containing a piezoelectric material. The piezoelectric material is polarised in an inlet part (1) of the base body, along a first axis, and in an outlet part (2) of the base body, along a second axis perpendicular to the first axis. The polarisation of the piezoelectric material gradually changes direction in a transition region between the inlet part and the outlet part, from a polarisation along the first axis to a polarisation along the second axis.