Abstract: A piezoelectric multi-layer component includes a piezoelectric main body, which has an inlet area and an outlet area. In the outlet area or in the inlet area at least two adjacent layers are polarized antiparallel to each other and at least two adjacent layers are polarized parallel to each other.

Abstract: A piezoelectric component comprises a parallelepipedal basic body made of piezoelectric material which has an input region and an output region at opposite longitudinal ends of the basic body. Furthermore, the piezoelectric component comprises first and second primary electrodes which are arranged inside the input region and first and second secondary electrodes which are arranged inside the output region. The primary electrodes are at a greater interval from longitudinal lateral faces of the basic body in a subregion which faces the output region than in the subregion which is remote from the output region. Likewise, the secondary electrodes are at a greater interval from the longitudinal lateral faces of the basic body in a subregion which faces the input region than in a subregion which is remote from the input region.

Abstract: A method of producing an electrical component includes forming a stack of ceramic green films, where the stack has a hole that is accessible from external to the stack, inserting a cover into the hole, and sintering the stack together with the cover. The method may also include boring the hole through the stack of ceramic green films.

Abstract: A piezoelectric multi-layer component includes a piezoelectric main body, which has an inlet area and an outlet area. In the outlet area or in the inlet area at least two adjacent layers are polarized antiparallel to each other and at least two adjacent layers are polarized parallel to each other.

Abstract: A piezoelectric component comprises a parallelepipedal basic body made of piezoelectric material which has an input region and an output region at opposite longitudinal ends of the basic body. Furthermore, the piezoelectric component comprises first and second primary electrodes which are arranged inside the input region and first and second secondary electrodes which are arranged inside the output region. The primary electrodes are at a greater interval from longitudinal lateral faces of the basic body in a subregion which faces the output region than in the subregion which is remote from the output region. Likewise, the secondary electrodes are at a greater interval from the longitudinal lateral faces of the basic body in a subregion which faces the input region than in a subregion which is remote from the input region.

Abstract: A piezoelectric transformer with a body that includes a first functional part and a second functional part is disclosed. The second functional part has inner electrodes, located in the body, which are connected to outer electrodes of this part. The first outer electrode of the first functional part is arranged parallel to the inner electrodes of the second functional part, wherein the minimum distance between the first outer electrode of the first functional part and the respective outer electrodes of the second functional part is selected greater than the distance between the first outer electrode of the first functional part and a terminal inner electrode of the second functional part facing it.

Abstract: A transformer arrangement with a piezoelectric transformer and a carrier will be disclosed. The transformer has a body in the form of a board. The transformer operates with thickness mode vibrations. The body is rigidly connected to the carrier in at least one peripheral region in which anti-nodes of a horizontal oscillation of the body appear.

Abstract: A multiple-layer component includes at least two metal layers, at least one dielectric layer among the at least two metal layers, and a contact element that includes a porous body that electrically connects the at least two metal layers. The at least one dielectric layer includes dielectric layers made from ceramic material that are sintered.

Abstract: A method of producing an electrical component includes forming a stack of ceramic green films, where the stack has a hole that is accessible from external to the stack, inserting a cover into the hole, and sintering the stack together with the cover. The method may also include boring the hole through the stack of ceramic green films.

Abstract: A piezoelectric transformer includes a base body. The base body includes an input part and an output part mechanically connected to the input part. The base body also includes internal electrodes perpendicular to a polarization axis of the transformer-in the input part and the output part. The transformer also includes an auxiliary electrode galvanically separated from the input part and the output part.

Abstract: An electrical component includes a body made from a stack of ceramic layers. The body has a cavity that is accessible external to the body. The cavity is defined by a wall. A contact surface is on the wall. A contact device is electrically connected to the contact surface. At least part of the contact device is external to the body. The contact device includes a connection part and a spring. The spring is between the body and the connection part. The spring is for exerting a spring force on the contact surface.

Abstract: A transformer arrangement with a piezoelectric transformer and a carrier will be disclosed. The transformer has a body in the form of a board. The transformer operates with thickness mode vibrations. The body is rigidly connected to the carrier in at least one peripheral region in which anti-nodes of a horizontal oscillation of the body appear.

Abstract: The invention relates to a piezoelectric multiple-layer component with a base body, which comprises a stack of piezoelectric layers (5) lying one above the other and electrode layers (3, 4) lying in-between, wherein an electrically conductive contact element (1, 2), which comprises a porous material and which contacts the electrode layers, extends transverse to the electrode layers (3, 4).

Abstract: A piezoelectric transformer with a body that includes a first functional part and a second functional part is disclosed. The second functional part has inner electrodes, located in the body, which are connected to outer electrodes of this part. The first outer electrode of the first functional part is arranged parallel to the inner electrodes of the second functional part, wherein the minimum distance between the first outer electrode of the first functional part and the respective outer electrodes of the second functional part is selected greater than the distance between the first outer electrode of the first functional part and a terminal inner electrode of the second functional part facing it.

Abstract: A piezoelectric transformer includes a base body. The base body includes an input part and an output part mechanically connected to the input part. The base body also includes internal electrodes perpendicular to a polarization axis of the transformer-in the input part and the output part. The transformer also includes an auxiliary electrode galvanically separated from the input part and the output part.

Abstract: A piezo-generator is specified with a resonance system which includes a piezoelectric transducer. The generator includes a feedback circuit, which is connected to the output of the piezoelectric transducer, that is provided for setting the oscillation frequency of the resonance system.

Abstract: A piezoelectric generator with a piezoelectric element and a mechanical transducer is specified and includes an oscillation device and an activator for transmitting a mechanical force to this device. The oscillation device is provided for generating a compressive stress on piezoelectric element.

Abstract: An electrical component includes a ceramic substrate and a piezoelectric transformer, which is connected electrically and mechanically to the ceramic substrate.

Abstract: A transformer arrangement is specified which includes a piezoelectric transformer with a main body (1), and a cooling body (7) on which the main body (1) is arranged, wherein the main body (1) is thermally coupled to the cooling body (7) by means of at least one heat-conducting coupling element (8).

Abstract: A piezoelectric transformer with a base body is specified that has an input part and an output part, wherein at least three groups of internal electrodes are contained in at least one of these parts. The internal electrodes of each group are interconnected in an electrically conductive way. In this way, the internal electrodes of one group are electrically isolated from the internal electrodes of the other groups.