Robert Boschgmbh

Stephan Rees

Armin Ruf

Gerhard Koelle

Harald Tschentscher

Robert Plikat

Wolfgang Jacob

Jochen Kuehner

Ulrich Zimmermann

Matthias Riedmann

Stefan Mueller

Ulrich Ammann

A method for the resistive charge equalization of battery cells of a battery, includes, in a first step, ascertaining the state of charge of the battery cells ascertained and correlating the battery cells of which the state of charge exceeds a predefined value with a first mask, which permits charge equalization only for a predefined portion of all the battery cells, wherein, then, charge equalization is performed. In a second step, the state of charge of the battery cells is optionally ascertained again and the battery cells of which the state of charge exceeds a predefined value are correlated with a second mask, which differs from the first mask, and wherein, then, charge equalization is performed. As a result, the heat generated during charge equalization is distributed in space and time such that no local overheating of or damage to components occurs and no overtemperature disconnection of the battery occurs.

Method for the resistive cell equalization of battery cells of a battery, a battery which is controlled in accordance with the method, and a motor vehicle

A transistor arrangement has first and second terminals and a control terminal which sets a current flow between the first and second terminals, and a signal conditioning device which applies a transistor control voltage to the control terminal in a manner dependent on a differential voltage present between the first and second terminals, and a driving apparatus is assigned to the signal conditioning device and switches the latter between at least two operating modes.

Transistor arrangement for rectifier and inverter

A control circuit for controlling an electronic circuit, which has a current path through a semiconductor switch and a line; when the semiconductor switch is switched, the inductance of the line and/or of a component in the current path producing an excess voltage between a first and a second current-carrying terminal of the semiconductor switch; the control circuit having a controllable current source for charging or discharging a charge-controlled gate of the semiconductor switch with the aid of a control current, as well as a control unit; the control unit controlling the current source in such a manner, that in the case of a switching operation, the terminal voltage across the current-carrying terminals of the semiconductor switch does not exceed a predefined setpoint terminal voltage.

Control circuit for controlling an electronic circuit and method for this

A device for recording the battery voltage in engine-control devices. The device has a first input terminal at which the battery voltage derived from the positive pole of the battery is supplied to the engine-control device. Moreover, it includes a first analog-digital converter and a first low-pass situated between the first input terminal and the first analog-digital converter. In addition, a first semiconductor switch is provided between the first input terminal and the analog-digital converter, which is conductive in the switched-on operation of the engine-control device and blocks in the switched-off operation of the engine-control device.

Device for recording the battery voltage in engine-control devices

In order to improve heat dissipation and to reduce parasitic inductivity in an electronic semiconductor module, which has a carrier substrate having an electrically insulating layer, a metal layer in which printed conductors are formed via structuring and which is arranged on the upper side of the insulating layer, and a metal cooling body arranged on the lower side of the insulating layer, and at least one semiconductor component arranged on the carrier substrate, the electrically insulating layer has at least one notch, and at least one terminal face provided on the upper side of the semiconductor component facing away from the carrier substrate is electrically connected to a contact element which is directly connected to the metal cooling body via the notch.

Growing community of inventors

Ludwigsburg, Germany

Stephan Rees