Disclosed is a technology that enables an elastic composite filter to have a capacitor to remove noise. The elastic composite includes a functional material layer; electrode patterns disposed on top and bottom surfaces of the material layer, respectively; and a conductive elastic member adhered onto the top electrode pattern, wherein the elastic member is coupled electrically and mechanically to the top electrode pattern to be used as an electrode, and the elastic member is in direct contact with a conductive object to provide elasticity.

Disclosed is a technology that enables an elastic composite filter to have a capacitor to remove noise. The elastic composite includes a functional material layer; electrode patterns disposed on top and bottom surfaces of the material layer, respectively; and a conductive elastic member adhered onto the top electrode pattern, wherein the elastic member is coupled electrically and mechanically to the top electrode pattern to be used as an electrode, and the elastic member is in direct contact with a conductive object to provide elasticity.

A capacitor comprises an electrically conductive cylinder, an electrically conductive or semi-conductive cylindrical shell or shell segment arranged concentrically around the electrically conductive cylinder, and a dielectric arranged between the electrically conductive cylinder and the electrically conductive or semi-conductive cylindrical shell or shell segment. The dielectric comprises a particulate composite including a matrix material having a non-zero (e.g. negative) thermal coefficient of relative permittivity and a particulate filler material blended with the matrix material, the particulate filler material having an opposite (e.g. positive thermal) coefficient of relative permittivity. The positive thermal coefficient of relative permittivity is thereby selected such that the capacitance value of the capacitor is constant within a stability margin over a predefined temperature interval.

A capacitor comprises an electrically conductive cylinder, an electrically conductive or semi-conductive cylindrical shell or shell segment arranged concentrically around the electrically conductive cylinder, and a dielectric arranged between the electrically conductive cylinder and the electrically conductive or semi-conductive cylindrical shell or shell segment. The dielectric comprises a particulate composite including a matrix material having a non-zero (e.g. negative) thermal coefficient of relative permittivity and a particulate filler material blended with the matrix material, the particulate filler material having an opposite (e.g. positive thermal) coefficient of relative permittivity. The positive thermal coefficient of relative permittivity is thereby selected such that the capacitance value of the capacitor is constant within a stability margin over a predefined temperature interval.

An apparatus and associated method are provided involving one or more registers configured to store a plurality of values including a first value corresponding with a first capacitance, and a second value corresponding with a second capacitance. Further included is a decoder configured to decode the values into corresponding capacitive settings. Also included is one or more capacitive elements in electrical communication with the decoder. Such one or more capacitive elements are configured to exhibit different capacitances, based on the capacitive settings. Also included is control circuitry in electrical communication with the decoder and the one or more registers. Such control circuitry is configured to control a transition of the capacitance of the one or more capacitive elements from the first capacitance to the second capacitance, by creating a plurality of additional values between the first value and the second value for being decoded by the decoder.

A multilayer capacitor include dielectric layers stacked in a direction perpendicular to a mounting surface of a capacitor body, and internal electrodes and an equivalent series inductance (ESL) control pattern formed on upper and lower portions of the dielectric layers, respectively. The internal electrodes have an area larger than that of the ESL control pattern, and the ESL control pattern is exposed to a mounting surface of a capacitor body.

Systems and methods for determining an operational condition of a capacitor package are disclosed. According to an aspect, a system may include a capacitor package including a dielectric material operatively connected between a first terminal and a second terminal. The system may include a Zener diode being operatively connected with its cathode at a third terminal and its anode at the second terminal. The system may also include a test pin being conductively connected to the third terminal. The system may also include a testing module configured to receive an electrical output from the test pin. The testing module may also be configured to determine an operational condition of the capacitor package based on the electrical output. The testing module may further be configured to present the operational condition of the capacitor package.

A multilayer capacitor includes a first grounding internal electrode including a first grounding electrode having a lead-out part led to one side surface of a stacked body, and a second grounding electrode having a lead-out part led to the other side surface; a second grounding internal electrode including a third grounding electrode which overlaps the first grounding electrode and has a lead-out part led to the other side surface, and a fourth grounding electrode which overlaps the second grounding electrode and has a lead-out part led to one side surface; and a signal internal electrode disposed between the first and second grounding internal electrodes, wherein the first and second grounding electrodes and the third and fourth grounding electrodes have, at their adjacent opposed sides, corners curved as seen in a plan view in the stacking direction, respectively, the corners being each located opposite to the corresponding lead-out part.

A method of making a capacitor with reduced variance comprises providing a bottom plate in a first metal layer, a first dielectric material over the bottom plate, and a middle plate in a second metal layer to form a first capacitor. The method also comprises measuring the capacitance of the first capacitor, and determining whether to couple none, one, or both of a second capacitor and a third capacitor in parallel with the first capacitor. The method may further comprise the steps of providing a second dielectric material over the middle plate, and providing a first top plate and a second top plate in a third metal layer to form the second capacitor, and a third capacitor. Electrical connections may be formed to couple one or both of the second capacitor and the third capacitor in parallel with the first capacitor based on the measured value of the first capacitor.

Disclosed is a high-voltage AC capacitor for reactive power compensation of 10 kV-35 kV power grid, and in particular to a high-voltage AC capacitor with a high-voltage switching switch provided therein, as well as a structure for prolonging the service life of a thin film metalized high-voltage capacitor and a control method for prolonging the service life of the thin film metalized high-voltage capacitor. The AC capacitor is formed by multiple intelligent switch capacitor units connected in series, and each capacitor unit is formed by a switch contact (K11-Kn1) and a capacitor (C1-Cn) connected in series. If there are N capacitor units, when each switch contact is disconnected, the endurable voltage of each switch contact, the endurable voltage between the switch contact and a coil and the voltage each capacitor withstands are 1/Nth of the total voltage; when the switch operates, all the contacts operate at the same instant.