Infineon Technologies Ag

Clemens Kain

Guenter Hofer

Jesus Ruiz Sevillano

Michael Hausmann

Christian Heiling

Heimo Hartlieb

Guenter Gross

Valentin Cee

Mario Fuchs

A battery management circuit may be configured to monitor a plurality of battery cells. The battery management circuit may comprise a battery monitoring circuit, and a supply circuit configured to supply the battery monitoring circuit based on the plurality of battery cells. The supply circuit may comprise a DC/DC power converter and a regulator, and wherein the DC/DC power converter is configurable based on a number of monitored battery cells in the plurality of battery cells.

Supply circuits for battery management circuits

A battery management system is described that includes a controller configured to control electrical charging and discharging of a plurality of blocks of a battery. The battery management system also includes an inter-block communication network including a master node and a plurality of slave nodes arranged in a ring-type daisy-chain configuration with the master node. The master node is coupled to the controller and configured to initiate all command messages sent through the inter-block communication network and terminate all reply messages sent through the inter-block communication network. The plurality of slave nodes is bounded by an initial node coupled to the master node and a last node coupled to the master node.

Power balancing communication for battery management

A transceiver circuit includes a first port and second port configured to be coupled to a first and second transmission channel, respectively; a supply port configured to receive a supply voltage; a first transceiver and a second transceiver having signal ports connected to the first port and second port, respectively; and a control circuit coupled to the first and second transceivers. Each of the first and second transceivers is connected to the supply port. At least one of the first and second transceivers includes a first half-bridge and a second half-bridge connected to the supply port and to the signal port at least one of the first and second transceivers, and a transceiver output circuit configured to generate a transceiver output signal based on a voltages across a low-side switches of the first and second half-bridges.

Transceiver circuit

A switched-capacitor circuit is described herein. In accordance with one exemplary embodiment the switched-capacitor circuit includes a first input node and a second input node and an input switch unit. The input switch is connected to the first input node and the second input node and has a first output node and a second output node. A first capacitor is coupled to the first output node of the input switch unit, and a second capacitor is coupled to the second output node of the input switch unit. The input switch unit includes a plurality of switches configured to con-nect and disconnect one of the first and second input nodes and one of the first capacitor and the second capacitor. The input switch unit further includes a first charge pump coupled to the first input node and a second charge pump coupled to the second input node. The first charge pump is configured to generate, based on a clock signal, switching signals for a switch of the plurality of switches, and the second charge pump is configured to generate, based on the clock signal, switching signals for a further switch of the plurality of switches.

Switched-capacitor circuit and method of operating a switched-capacitor circuit

Disclosed is a method for charge balancing in a charge storage arrangement having a plurality of charge storage cells connected in series, and a charge balancing circuit.

Inductive charge balancing

In various embodiments, a method for evaluating a cell of a battery is provided. The method may include: balancing a voltage of at least one cell of the battery using charge pulses, wherein the charge pulses are modulated with an oscillating test signal; measuring a current flow through the cell and measuring a voltage across the cell; demodulating the measured current and the measured voltage; and determining an impedance based on the demodulated current and the demodulated voltage. Further, in various embodiments, a circuit is provided, including a balancing circuit configured to inductively transfer charges between cells in a battery using current pulses, and a control unit configured to control the balancing circuit to provide the current pulses, wherein an average value of the current pulses oscillates over time.

Circuit and method for evaluating cells in a battery

A method and to a system can be used for measuring electric voltages in batteries with a number of battery cells. A measuring circuit includes at least one digital analog converter that constitutes, in combination with a number of comparators, an analog digital converter to determine the electric voltages of the battery cells. The comparators compare a reference voltage generated by the digital analog converter with the electric voltage of the battery cells over a number of separate measuring channels to the individual battery cells.

System and device for determining electric voltages

In accordance with an embodiment, a method for operating a signal converter includes converting an analog input signal to a digital output signal, comprising by comparing the analog input signal to an analog comparison signal, and detecting whether the analog input signal exceeds a predetermined maximum or minimum threshold by comparing the analog input signal to an analog threshold signal. The analog comparison signal and the analog threshold signal are generated by a same digital-to-analog converter.

Signal converter and method for operating a signal converter

A semiconductor component comprises a semiconductor body including a front side and a number of cell strips. Each of the cell strips includes a terminal zone of a first type arranged on the front side of the semiconductor body and a terminal zone of a second type arranged on the front side of the semiconductor body. A patterned first metallization layer, a patterned second metallization layer, and a patterned third metallization layer are arranged successively on the front side. A first plurality of conductive lines are formed in the first metallization layer and a second plurality of conductive lines are formed in the second metallization layer. The second plurality of conductive lines cross the first plurality of conductive lines at crossover locations. The second plurality of conductive lines are electrically conductively connected to the first plurality of conductive lines at predetermined crossover locations.

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Kammern, Austria

Clemens Kain