Robert Boschgmbh

Robert Bosch Gmbh

Mathis Wolf

Johannes Swoboda

Chrysanthos Tzivanopoulos

Thomas Schaedlich

Patrick Kaupp

Thomas Barabas

Isaias Miguel Alejandro Santucho

A circuit arrangement for current limiting and an electrical system comprising such a circuit arrangement. An output terminal of a current limiting control circuit is connected to a control input of a semiconductor switch via a limiting resistor (RB). The current limiting control circuit is configured to change an output impedance of the current limiting control circuit at the output terminal. The semiconductor switch is configured to set a current (I) in a circuit between an electrical power source and a load. An inductor (L) is configured to be connected to the electrical power source and to a terminal of the load and an input of the current limiting control circuit is connected to the inductor (L). The current limiting control circuit is configured to detect an overcurrent-related voltage drop (VL) of the inductor (L) and reduce its output impedance to increase an output impedance of the semiconductor switch.

Circuit arrangement for current limiting and electrical system

The invention relates to a monitoring assembly for an electrical component, a semiconductor switch assembly having a monitoring function, and an energy system. An analysis unit () of the semiconductor switch assembly is configured to determine on the basis of a first voltage divider (), a second voltage divider (), and a measuring device (), a short circuit and/or a deviation from desired switched states in a first semiconductor switch () having a first inverse diode and a second semiconductor switch () having a second inverse diode, the semiconductor switches () being connected in series between an input terminal () and an output terminal () of the semiconductor switch assembly, in such a way that the inverse diodes thereof are arranged anti-serially. In addition, the semiconductor switch assembly is configured to determine, on the basis of a first switch (S) and a second switch (S), a corrective factor for establishing a balance between the first voltage divider () and the second voltage divider ().

Monitoring assembly for an electrical component, semiconductor switch assembly having a monitoring function, and energy system

A voltage measurement method for an on-board power supply system () of a vehicle, wherein the on-board power supply system () comprises a battery pack () with a plurality of battery cells () and at least one sub-grid () which can be coupled to the battery pack () via contactors (SH+, SH−, SL+, SL−). According to the invention, the voltage measurement method comprises the following method steps: In an initial calibration mode with open contactors (SH+, SH−, SL+, SL−):

Voltage measurement method and operating method for a vehicle on-board power supply system

A circuit arrangement and an electrical system, where in the circuit arrangement, an output terminal of a current limiting control circuit is connected to a control input of a semiconductor switch via a resistor (RG), and a gate driver is connected to the control input of the semiconductor switch via the gate resistor RG and to the resistor (R). The current limiting control circuit is configured to change its output impedance at the output terminal in order to control the semiconductor switch. A source terminal of the semiconductor switch is connected to a reference potential (GND) of the circuit arrangement, and the semiconductor switch is configured so as to set a current (I) in a circuit between an electrical power source and a load. A first inductor (L) and a second inductor (L) are connected in series within the circuit.

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Kornwestheim, Germany

Mathis Wolf