Robert Boschgmbh

Seg Automotive Germany Gmbh

Harald Schueler

Stefan Tumback

Sven Hartmann

Paul Mehringer

Wolfgang Feiler

Markus Roessle

Juergen Gross

Matthias Schmidt

Oliver Dieter Koller

Jie Ge

Christopher Otte

Simon Rentschler

Martin Richter

Siegbert Sautter

Giuseppe Bisceglie

Duraisamy Sakthivadivel

A rectifier module for an active bridge rectifier having two switching elements, connected in series between two end terminals, and between which a center tap is formed, and a control circuit including a monitoring unit, a synchronization unit, and a control unit, the monitoring unit detecting a measuring voltage and outputting a request signal when the measuring voltage exceeds an upper threshold value. The synchronization unit outputs a synchronization signal to a synchronization terminal as long as the monitoring unit outputs the request signal, and otherwise to monitor the synchronization terminal for a synchronization signal. The control unit switches one of the two switching elements into a conductive state at least in sections during an activation period of time, when the monitoring unit outputs the request signal and/or when the synchronization signal is detected and is optionally recognized as valid by the monitoring. Also described is an active bridge rectifier including corresponding rectifier modules, a generator array including such a bridge rectifier, a corresponding motor vehicle electrical system, an operating method, and an arrangement for the method.

Voltage surge protection for active rectifiers in the event of load shedding

A converter for an electric motor includes a semiconductor element connected at at least one contacting for converting a voltage, a voltage measuring device for measuring a voltage drop over the semiconductor component, and a control device for controlling the semiconductor component, the control device being configured to determine a state of the contacting based on the measured voltage drop.

Converter for an electric motor

A method and device for activating a starter, which is controllable by a driver unit, for an internal combustion engine of a motor vehicle. A method for activating a starter, which is controllable by a driver unit, for an internal combustion engine of a motor vehicle, the driver unit being controllable by a control unit with the aid of at least one activation line, a switch, which is controllable by the control unit, being situated between the driver unit and a supply unit coupled to a supply voltage, the starter being activated with the aid of the control unit and the switch in the case of failure of the at least one activation line and/or at least one part of the driver unit.

Method and device for activating a starter, which is controllable by a driver unit, for an internal combustion engine of a motor vehicle

A switching device has an electromagnetic switching element and a controller, the switching element including two coils on one core which act on a shared armature. In order to implement an operation of the armature to be activatable as rapidly and simply as possible with low power consumption, the controller is designed to have a switch in the current path of the coil in each case to activate each coil.

Switching device, starting device, and method for an electromagnetic switching device

An electrical component having a primary winding, a first field-effect transistor, configured as a switch of the primary winding, for switching the primary winding, a quench winding for quenching the inductive load of the primary winding when switching off the primary winding, and a second field-effect transistor, configured as a switch of the quench winding, for switching the quench winding. In the process, the first field-effect transistor is operated in linear operation and the second field-effect transistor is operated in linear operation or in a clock-pulsed operation between the linear operation and a switched-off state during a switching-off process of the quench winding.

Method and control unit for controlling an electrical component

An electrical component having a core and a first and second coil positioned around the core is controlled in such a manner, that in response to the second coil being switched off, the first coil is short-circuited via a quenching circuit to quench the inductive load of the second coil.

Electrical component and method for controlling an electrical component

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Backnang, Germany

Harald Schueler