Infineon Technologies Ag

Siemens Aktiengesellschaft

Peter Sommer

Jenoe Tihanyi

Xaver Schloegel

Alfons Graf

Ludwig Leipold

Peter Huber

Paul Nance

The power switch has a first transistor, a limiting transistor, and an auxiliary transistor. The first transistor has a load path and a control electrode. The limiting transistor, which limits a voltage drop across the load path of the first transistor, has a load path connected in series with the load path of the first transistor, and a control electrode. The auxiliary transistor has a load path connected between the control electrode of the limiting transistor and a reference node, and having a control electrode connected between the first transistor and the limiting transistor.

Power switch

A temperature-protected semiconductor circuit configuration that has an integrated switching unit. The switching unit is formed of a semiconductor switch, a first integrated temperature sensor for driving the semiconductor switch when an over-temperature is reached, first and second connecting terminals for connecting a load, and a control terminal for applying a drive signal for the semiconductor switch. A second temperature sensor is connected in a heat-conducting manner to the switching unit which exhibits at least one output terminal for providing a temperature-dependent temperature signal.

Temperature-protected semiconductor circuit configuration

The semiconductor component has a circuit configuration for driving an electrical load. The circuit includes a control circuit with a power switch driven by a drive configuration and feeding a current to the load. The semiconductor component has a first temperature detector thermally closely coupled to the power switch and a further temperature detector. A temperature evaluation circuit receives temperature signal from the temperature detectors and generates a signal that depends on the signals of the temperature detectors and feeds the signal to the drive configuration.

Semiconductor component with a circuit for driving an electrical load

A circuit configuration for driving an ignition coil includes a first semiconductor switch having a load path connected in series with a primary winding of the ignition coil, and having a control electrode, which is driven in accordance with a first drive signal. The circuit configuration further includes a second semiconductor switch having a load path connected in parallel with the primary winding and having a control electrode, which is driven in accordance with a second drive signal.

Circuit configuration for driving an ignition coil

A semiconductor component includes an insulating housing. A plurality of sheet-metal mounting plates are disposed in one and the same plane and are electrically separated from one another in the housing. Semiconductor switches of a rectifier bridge are electrically conductively secured to the mounting plates. Sheet-metal connection leads are electrically connected to the semiconductor switches. At least one sheet-metal connection lead is electrically connected to the mounting plates.

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Munich, Germany

Peter Sommer