Infineon Technologies Ag

Infineon Technologies Austria Ag

Andreas Pechlaner

Benno Koeppl

Dusan Graovac

Peter Gollob

Jens Barrenscheen

Werner Roessler

Hermann Kern

Mario Keil

A battery module and an arrangement including a number of battery modules connected in series are disclosed. An energy store has a positive and a negative connection. A boost converter has a first and a second converter output. The energy store is connected at the positive connection of the energy store to a first connection and at the negative connection of the energy store to a second connection. The first converter output is connected to a first compensation connection and the second converter output is connected to a second compensation connection. The converter is designed to draw energy from the energy store and to provide the energy to the converter outputs of the converter in the form of current.

Battery module with converter and decoupling switch

In accordance with an embodiment, a method of operating a multi-level converter includes detecting a charge state of charge storage units of series connected converter units, assigning parameter sets to the converter units based on the detected charge states, and generating control signals coupled to switch arrangements of the converter units based on the parameter sets.

Circuit arrangement including a multi-level converter

A charge balancing circuit and an energy storage arrangement with a charge balancing circuit are disclosed.

Active charge balancing circuit

In accordance with an embodiment, a circuit includes voltage supply terminals configured to provide an AC output voltage, at least two converter units, and a control circuit. Each converter unit includes input terminals configured to be connected to an electrical charge storage unit, output terminals, and a switch arrangement connected between the input and output terminals. The switch arrangement is configured to receive a control signal, and provide an output voltage having a duty-cycle dependent on the control signal. The control circuit is configured to provide a set of parameter sets that are dependent on a desired output voltage waveform, define a duty-cycle, and generate the control signals for the at least two converter units such that one parameter set is selected from the set of parameter sets is assigned to one converter unit, and the assignment of parameter sets to the converter stages varies over time.

The invention relates to a protection circuit () for an access-arbitrated bus system network, comprising a fault detection device for detecting a fault status in a sub-network of the overall bus system network; and a separating device for separating the sub-network from the overall network when a fault status is detected in said sub-network.

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Dietramszell, Germany

Andreas Pechlaner