Siemens Aktiengesellschaft

Siemens Healthcare Gmbh

Nuray Technology Co., Ltd

Walter Beyerlein

Werner Kühnel

Richard Eichhorn

Markus Hemmerlein

Werner Kuehnel

Thomas Weidinger

Stefan Waffler

Thomas Luthardt

Norbert Hoffmann

Jürgen Oelschlegel

Andreas Böhme

Christian Hoffmann

Johann Kolar

Peter Schweighofer

Joerg Dorn

Oliver Heuermann

Jens Fürst

Yuan Cheng

Tobias Graßl

Qi Qiu

Peter Tichy

Frank Sprenger

Florian Hofmann

Moritz Beckmann

Andreas Hader

Philipp Kutzer

Georg Weber

Winrich Heidinger

Robert Heiter

Johannes Gareus

Ulf Lanz

Houman Jafari

Andre Gebhardt

Xiao Gao

Sabine Missel

Ottmar Forstel

Rashid Karimi

Werner K&uuml;hnel

Joachim Grund-Ruffani

Stefan Henke

Norbert Blank

Claus Bieder

Karsten Schmitt

Tobias Grassl

Robert Graetz

Andreas Daenzer

Siegfried Meisel

Juergen Oelschlegel

Elke Jennewein-Wolters

Martin Schoen

Tobias Graβl

Peter Wehrle

Generator

A medical imaging device includes a stationary device part and a moveable device part moveably mounted for this purpose. A power source is arranged on the stationary device part. A number of main electrical consumers, a number of secondary electrical consumers, and an energy storage device are arranged on the moveable device part. A power transmission link, arranged between the stationary device part and the moveable device part, is designed to transmit power from the stationary device part to the moveable device part. On the stationary device part, an energy emitting component of the power transmission link is connected to the power source and on the moveable device part, an energy receiving component of the power transmission link is switchably connected to the main consumer and to the secondary consumer via switching device(s), and to the energy storage device. The energy storage device is switchably connected to the secondary consumer.

Medical imaging device including a power transmission link

The disclosure specifies a circuit arrangement having electronic first components arranged on a circuit board and lying at high-voltage potential. The circuit arrangement includes functionless, electronic second components lying at high-voltage potential, which are arranged on the circuit board adjacent to the electronic first components, and configured to reduce the maximum electrical field strength between the first components and a reference potential and/or between pads of the circuit board and the reference potential. Through the additional, functionless components, the maximum electrical field strength between electronic components at high voltage and at a reference potential will be reduced. The disclosure also specifies a high voltage generation unit and an x-ray generator.

Circuit arrangement for reducing the maximum electrical field strength, high voltage generation unit with such a circuit arrangement and x-ray generator with such a high voltage generation unit

A high-voltage measurement divider for an X-ray tube is provided. The high-voltage measurement divider includes a ground connection, a high-voltage connection, a measuring tap, and divider modules of substantial identical design apart from the circuitry. Each of the divider modules has a first connection, a second connection, a resistor board, and at least one flat potential electrode. The divider modules are connected at corresponding connections in series between the ground connection and the high-voltage connection. At least one division stage is formed by each of the divider modules, and a first division stage is formed between the measuring tap and the ground connection.

High-voltage measurement divider

The embodiments relate to a circuit for transmitting an input voltage from an electrical energy source in a stator to a load within a device movable relative to the stator including an control element for converting an input voltage into a transmission voltage, a resonant circuit for receiving the transmission voltage, wherein the resonant circuit contains a capacitor and a primary winding of a transformer and the transformer having the primary winding and a secondary winding, wherein the primary winding is provided for transmitting the transmission voltage to the secondary winding and the secondary winding is provided for supplying the received transmission voltage to the load.

Controlling a contactless energy transmission by means of a characteristic of a resonant circuit

An electron source includes a plurality of electron emission cathodes and at least one control electrode. A gate current regulator is provided for regulation of current flowing through the at least one control electrode.

Electron source

A device for improving the filter effect of a filter connected up between an electrical energy source and a source of interference is provided. The filter is configured to feed back interference transients from ground to an input of the source of interference generating the interference transients. The device includes a measuring device for determining a leakage current flowing through the filter and a final control element configured to modify a limit frequency of the filter such that the leakage current through the filter is damped to below a predefined level if the measuring device detects the leakage current.

Adaptive line filter

An improved x-ray tube that includes a plurality of cathodes in a region under vacuum is provided. Several wirelessly activatable elements, which are each assigned to a cathode or a group of cathodes, are arranged in the region under vacuum and make an electrically conducting connection of the cathode or the group of cathodes to a cathode control voltage line when receiving a control signal from outside of the region under vacuum. A system that includes the improved x-ray tube and several transmitter elements for the wireless activation of the wirelessly activatable elements is also provided.

Multicathode X-ray tube

The present embodiments related to a device having a device element to which a high voltage can be applied. The device is provided with at least one additional conducting element which is disposed, embodied and connected in such a way that the element is assigned a defined potential value and a change to the electric field generated by the high voltage in the sense of a more favorable field distribution is effected by means of position, shape and potential value. According to the invention, maximum loads on switching elements are avoided and undesirable phenomena such as voltage breakdowns or flow voltages are counteracted as a result of the more favorable field distribution.

Potential control for high-voltage devices

A computer tomography device is provided. The computer tomography device includes a rotating part and a stationary part. The rotating part has an X-ray tube for radiographing an object to be examined with X-rays and a detector for detecting the X-rays transmitted through the object. A stationary part has a data processing device for evaluating the detected measuring results, and a transmitter for supplying the X-ray tube and/or the detector and other rotating consumers with supply voltage by contactless transmission of electric power between the stationary and the rotating part. The transmitter is designed for contactless data transmission between the stationary part and the rotating part in addition to the contactless transmission of electrical power.

Computed tomography device including transmitters for contactless transmission of data and electrical power

An apparatus includes a first, stationary system, in particular a stator, and a second system which is provided for moving relative to the first system, in particular an armature, a first and second electrical reference potentials which are assigned to the first system and the second system, respectively, and a coupler for potential coupling of the two reference potentials. The coupler is used for the potential coupling of a ground of the moving system to a ground of the stationary system in order to ensure a reliable data transmission between the systems. In order to achieve a coupling with a maximal service life and requires minimal maintenance, the coupler has a field coupling component for mechanically contactless potential coupling.

Apparatus with a moving system and a stationary system

The invention relates to a gantry for an x-ray device. According to the invention at least one screening device used to reduce interactions with electromagnetic disturbance fields is provided for the at least one transmitter for the non-contact power or signal transmission between a stationary part and a rotatable part of the gantry.

Gantry for an X-ray device

An X-ray device having an X-ray source, a high voltage generator supplying power to the X-ray tube and an inverter to generate, at the output end, an AC input voltage for the high voltage generator is disclosed. Provision is made therein for a resonance network to be formed between the inverter and the high voltage generator. This allows transmission of the AC input voltage with low power dissipation and low radiation levels. It also achieves spatial separation of the inverter from the high voltage generator and the X-ray source.

X-ray device

The disclosed, embodiments relate to a high-voltage supply () for an X-ray device. The X-ray device comprises an X-ray tube () and a high voltage generator(), for generation of the high voltage necessary for operating the X-ray tube (). The high voltage supply () comprises electrically-conducting lines (), for the connection of the high voltage generator to the X-ray tube (). Each of the lines () comprises one end which may be connected to the high voltage generator () and a further end which may be connected to the X-ray tube (). At least one end of at least one of the lines () may be connected to an electrical terminal resistor () which may be arranged between the line () and the high voltage generator (), or between the line () and the X-ray tube ().

High-voltage supply for an X-ray device

A circuit arrangement for generating an X-ray tube voltage is described, wherein a switching device, connected downstream of a voltage controller (G ) and a oscillating current controller (G ), operable to compare a first controlling variable value (Y ) and a second controlling variable value (Y ) and is operable to send the lesser of the first and second controlling variable values (Y and Y onward as a resultant controlling variable value (Y(t)) to the inverse rectifier circuit (G ).

Circuit arrangement and method for generating an x-ray tube voltage

Growing community of inventors

Bubenreuth, Germany

Walter Beyerlein