Abstract:
An implantable device, such as a pacer, defibrillator, or other cardiac rhythm management device, can include one or more MRI Safe components. In an example, the implantable device includes a capacitor including a first electrode including a first slot extending from a perimeter of the first electrode to an interior of the first electrode. A second electrode is separated from the first electrode by a first distance. The second electrode includes a second slot extending from a perimeter of the second electrode to an interior of the second electrode. The first and second slots are configured to at least partially segment surface areas of the first and second electrodes, respectively, to reduce a radial current loop size in each of the first and second electrodes.
Abstract:
Pack d'accumulateurs rechargeables comportant une pluralité de stockeurs électriques montés en série, une pluralité de circuits électroniques pour le pilotage des stockeurs du pack, connectés aux bornes de ladite pluralité de stockeurs, les stockeurs présentant leurs pôles sur des faces opposées et étant disposés les uns derrière les autres pour former un train oblong, caractérisé en ce que les circuits électroniques sont logés dans des compartiments longeant les stockeurs ; le ou les circuits d'un compartiment sont reliés électriquement à un pôle d'un stockeur par un connecteur et les compartiments sont assemblés bout à bout, d'une part pour relier électriquement les circuits électroniques et d'autre part pour former un boitier essentiellement parallèle au train.
Abstract:
The invention relates to a method for reforming electrolytic capacitors, comprising the following steps: a) if the electrolytic capacitor exhibits a load, slowly discharging via a suitably dimensioned load; b) charging of the electrolytic capacitor by applying a voltage increasing in steps, wherein each voltage increase step equals a fraction of the nominal voltage of the electrolytic capacitor, wherein the voltage is then increased by one step when the charge current at the current step has dropped substantially to zero, and wherein the stepped increase of charge voltage is continued until the charge current no longer drops to zero.
Abstract:
The invention relates to a power capacitor (1) which can be used in a motor vehicle. Said power capacitor comprises a capacitor unit (2) which is provided with at least one first and at least one second capacitor element (3, 4). Each capacitor element comprises at least two plastic films which are wound and which are provided with metal layers, said plastic films being provided with metal-free edge strips on opposite lying longitudinal sides, a connecting unit (5) and a housing (12). The capacitor elements (3, 4) are connected in a parallel manner by means of said connecting unit (5).
Abstract:
The invention concerns a connection system between batteries or banks of capacitors associated with a circuit, for example of the inverter type and whereof the capacitors are connected by a busbar consisting of two thin bars of different polarities stacked and separated by an insulating layer. Each busbar (5) comprises at least one protuberance (6') designed to co-operate with a linking member (C') between two protuberances (6') derived from two batteries or banks of adjacent capacitors. The linking member comprises two conductive strips (9', 10') designed to be contacted each with the bars of same polarity of two opposite protuberances (6'), said strips (9', 10') being arranged on either side of an insulating layer (7'). One of the protuberances (6') or of each co-operating zone of the linking member (C') with one protuberance (6') comprises a clamp forming a slide enabling the other to be slidingly positioned perpendicular to the axis of the link. Clamping/releasing means (12', 14') enable the linking member (C') to be fixed to each protuberance (6'), said means being maintained as one single assembly upon release.
Abstract:
Structures for serially connecting at least two capacitors together are described. Serially connecting capacitors together provides device manufactures, such as those selling implantable medical devices, with broad flexibility in terms of both how many capacitors are incorporated in the device and what configuration the capacitor assembly will assume.
Abstract:
The invention relates to a surface-mountable component comprising at least one outer connection (11, 12), individual components (21, 22) that are stacked together, and containing individual connections (311, 312, 321, 322), in which the outer connection (11, 12) connects a number of individual connections (311, 312, 321, 322) via weld spots (300) and forms a contact surface (51, 52) on the mounting side (4) of the component. A surface (350) of the outer connection (11, 12) to be covered with solder is provided that does not have any weld spots (300). When the individual components are provided in the form of tantalum electrolytic capacitors, the inventive component is advantageous in that a low ESR can be achieved with little waste.