Siemens Aktiengesellschaft

Siemens Vdo Automotive Corporation

Harris Semiconductor Corporation

Gerhard Goeser

Theodor Maier

Donald Preslar

Alfons Fisch

Philippe Lefaure

Mark Elliott

Georges Fonzes

Franz Allmeier

Philip Murphy

Alain Brillion

Martin Heine

The invention relates to a method for automatically determining the position of the wheels of a motor vehicle (), characterised in that it consists in:&#x2014;measuring () the temperature of each wheel () of the vehicle; and determining () the position of the wheels on the vehicle according to the temperature measured. The invention also relates to a corresponding position-finding device. The device is particularly suitable for monitoring the pressure inside tires.

Method for automatically determining the position of the front and rear wheels of a motor vehicle

A power output stage for switching inductive loads contains a series circuit having a load and a switching transistor. A series connected circuit formed of a blocking diode and a multiplicity of Zener diodes is disposed between the drain and gate electrodes of the switching transistor. A capacitor, a resistor or a series or parallel circuit of a capacitor and a resistor is disposed in parallel with at least one of the Zener diodes. The circuit configuration rounds off the pronounced kink in the drain voltage when the Zener protection cuts in during a switched state of the switching transistor.

Power output stage for switching inductive loads with reduced radiation emission

In a method for triggering a DC motor through an integrated H-bridge circuit by using a control circuit and an apparatus for carrying out the method, a high-side transistor switch or a low-side transistor switch associated with each motor terminal, or both of the transistor switches, are each controlled or regulated to a conductive state by a respective guard circuit, if and as long as a potential at a motor terminal is or falls below a predetermined value. Each guard circuit has a biased transistor with a conductive state in which the associated transistor switches are made conducting through a current mirror.

Apparatus for triggering a DC motor with a protective circuit preventing

A circuit arrangement for controlling a load and for recognizing an interruption in a line to the load includes a measuring resistance connected in series with the load, a device for varying a resistance value of the measuring resistance as a function of a current passing through the load, and a diagnostic device for generating a diagnosis signal if a voltage drop, producible across the measuring resistance by a load current drops below a threshold value.

Circuit arrangement for controlling a load and for recognizing a line

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Pentling, Germany

Gerhard Goeser