Infineon Technologies Austria Ag

Abb Research Ltd.

Nabtesco Corporation

Robert Boschgmbh

Mitsubishi Denki Kabushiki Kaisha

Abb Schweiz Ag

Alstom Technology Limited

Eth Zurich

Etel S.a.

Prodrive Technologies Innovation Services B.v.

Toyota Jidosha Kabushiki Kaisha

Siemens Aktiengesellschaft

General Electric Technology Gmbh

Eth Zurich, Eth Transfer

Swiss Federal Institute of Technology Zurich

Johann Kolar

Dominik Bortis

Gerald Deboy

Matthias Kasper

Dominik Neumayr

Matti Laitinen

Jürgen Biela

Kazuhito Nakamura

Per Ranstad

Jörgen Linner

Daniel Aggeler

Thiago Batista Soeiro

Jannik Robin Schaefer

Yanick Lobsiger

Marc Fahlenkamp

Martin Krueger

Anthony Sanders

Matthias J Kasper

Yasuo Ono

Panteleimon Papamanolis

Michael Haider

Mario Mauerer

Johann Ertl

Florian Krismer, Sr

Mattia Guacci

Jonas Emanuel Huber

Michael Flankl

Arda Tueysuez

Yusuke Tsukada

Kennith Kin Leong

Francisco Canales

Walter Beyerlein

Cheng-Wei Chen

Satoru Sasaki

Bernhard Wunsch

Beat Guggisberg

Hideki Tojima

Jon Azurza Anderson

Simon Douglas Round

Leonardo Serpa

Michael Leibl

Benjamin Wrzecionko

Lukas Steinmann

Yanich Lobsiger

Jon Azurza

David Menzi

Neha Nain

Daifei Zhang

Yunni Li

Roman Bosshard

Guanghai Gong

A method, a control circuit, and a power converter arrangement are disclosed. The method includes: coupling three power converters () with each other; connecting each of the three power converters () to a 3-phase power source () configured to provide three supply voltages (Ua, Ub, Uc); and regulating a respective input signal (V, V, V; I, I, I) of each of the three power converters () dependent on a common mode signal (Scm).

Method of operating a power converter arrangement, control circuit and power converter arrangement

Disclosed is a method and apparatus. The method includes detecting an operating state of a current source converter that comprises a current source rectifier (), a current source inverter (), and an inductor circuit () connected between an output (p, n) of the current source rectifier () and an input (q, r) of the current source inverter (); and dependent on the detected operating state, operating the current source converter in a first operating mode or a second operating mode. Operating the current source converter in the first operating mode comprises operating the current source rectifier () in a 2/3 mode and operating the current source inverter in a 3/3 mode, and operating the current source converter in the second operating mode comprises operating the current source inverter () in the 2/3 mode and operating the current source rectifier in the 3/3 mode.

Method for operating a current source converter, control circuit, and current source converter

A monolithically integrated bidirectional switch includes: an output terminal; a control terminal; a compound semiconductor substrate; a common drift region in the compound semiconductor substrate and in series between the input terminal and the output terminal; a first gate; and a second gate. The first gate is electrically connected to the control terminal and the second gate is electrically connected to the input terminal, or one of the first gate and the second gate is a normally-on gate and the other one of the first gate and the second gate is a normally-off gate. In either case, the monolithically integrated bidirectional switch is configured to conduct current in a single direction from the input terminal to the output terminal through the common drift region. A corresponding power electronic system that uses the monolithically integrated bidirectional switch is also described.

Automatic reverse blocking bidirectional switch

A power conversion method is disclosed. The method includes operating a PFC converter configured to receive three input voltages and provide a DC link voltage between DC link nodes in one of at least two different operating modes, and operating an SR converter coupled to the PFC converter via the DC link nodes in one of at least two different operating modes dependent on an output voltage of the SR converter. Operating the SR converter includes regulating a voltage level of the DC link voltage dependent on a DC link voltage reference, and the at least two different operating modes of the SR converter include a buck mode and a series resonant mode.

Power conversion method using a synergetic control of two power converters

The invention relates to an inductive component having a planar conductive track structure. The planar conductive track structure is surrounded along a predetermined section by a ferromagnetic core. For targeted control of the current flow inside the planar conductive track structure and, in particular, of the current density in the cross-section of the planar conductive track structure, gaps are provided in a targeted manner in the ferromagnetic core. The gaps in the ferromagnetic core are arranged in regions above and/or below the planar conductive track structure.

Inductive component and high-frequency filter device

Disclosed is a current source inverter that includes a combination of normally-on and normally-off switches configured to provide free-wheeling paths for current in case of loss of control signals or gate drive power.

Current source inverter and method of operating a current source inverter

A multiphase converter topology is used for the transmission of electrical energy from an AC voltage input with m grid phase connections to a DC voltage output or vice versa. It has a power part with half-bridges for switching currents, an AC voltage filter between the power part and the AC voltage input, and DC voltage block(s) connected between the power part and the DC output. The AC voltage filter has alternating voltage filter stage(s) with m+1 input connections, m+1 output connections and a ground connection. The m grid phase connections are thereby connected in parallel to one another and form a first phase connection for the connection of a single-phase AC voltage. A neutral conductor connection of the AC voltage filter forms a neutral conductor connection of the AC voltage input and a second phase connection for the connection of the single-phase AC voltage.

Multi-phase converter topology for multi-phase and single-phase operation

The invention relates to the galvanically isolated transmission of electrical power between three voltage systems. For this purpose, a transformer is provided which comprises a total of five windings. The transmission between the individual voltage systems can be controlled by targeted manner activation of the individual windings.

Transformer for a three-port voltage converter, three-port voltage converter and method for transmitting electrical power

Disclosed is a power converter circuit and a method for operating the power converter circuit. The power converter circuit includes at least one converter stage and a control circuit. The at least one converter stage includes an input configured to receive an input power, an output configured to supply an output power, a first electronic switch, and a first inductor coupled to the first electronic switch. The control circuit includes a hysteresis controller configured to drive the first electronic switch based on a current measurement signal representing a current through the inductor, a first threshold signal, and a second threshold signal, and an operating point controller configured to detect an operating point of the converter stage to generate the first threshold signal and the second threshold signal based on the detected operating point.

Switched mode power converter that is switched using current thresholds

A power converter circuit includes an input configured to receive an input voltage and an output configured to provide an output voltage; a main converter coupled between a main converter input and the output and comprising a first winding and a second winding that are inductively coupled; and an auxiliary converter comprising an auxiliary converter input coupled to a third winding and an auxiliary converter output, wherein the third winding is inductively coupled with the first winding and the second winding. The auxiliary converter output is coupled between the input and the main converter input.

Power converter circuit with a main converter and an auxiliary converter

An AC-AC converter circuit converts an AC voltage into a further AC voltage. A rectifier circuit rectifies the AC voltage. An inverter circuit generates the further AC voltage. AZ source circuit is provided between the rectifier circuit and the inverter circuit.

AC-AC converter circuit

A method for operating a power converter is described. The power converter includes three input nodes each configured to receive a respective one of three input voltages, two DC link nodes configured to provide a DC link voltage, and a midpoint coupled to each DC link node. Three inductors are each connected to a respective one of the three input nodes. A rectifier bridge including three bridge legs are each coupled to a respective one of the three inputs through a respective one of the three inductors and connected to the respective one of the three inductors at a respective switch node. Each bridge leg is connected to the two DC link nodes and the midpoint, and includes at least one electronic switch. The power converter is operated in a reduced switching mode by deactivating at least one of the three bridge legs for a predefined time period.

Method for operating a power converter

Provided is a rotary electric machine including: a permanent magnet rotatable around a first rotational shaft and disposed at a distance from a main surface of a moving body rotating or moving, at least a part of a side surface of the permanent magnet continuous to an outer peripheral surface thereof being opposed to the main surface of the moving body, wherein the permanent magnet is rotated around the first rotational shaft by a reaction force acting on the permanent magnet, the reaction force being caused by eddy currents produced in the main surface of the moving body in such a direction as to hinder a change of magnetic flux from the permanent magnet, and a surface speed of the side surface of the permanent magnet opposed to the moving body is lower than a surface speed of the main surface of the moving body opposed thereto.

Rotary electric machine and non-contact power generator

Growing community of inventors

Zurich, Switzerland

Johann Kolar