Infineon Technologies Ag

Bernd Zimek

Thomas Leutgeb

Josef Haid

Dietmar Scheiblhofer

Walter Kargl

Uwe Weder

Thomas Baglin

Korbinian Engl

Holger Sedlak

Thomas Kuenemund

Albert Missoni

Gerhard Nebel

Josef Riegebauer

Thomas Santa

Dirk Rabe

Hermann Hofer

George Efthivoulidis

Peter Thurner

Robert Hofer

Tony Gschier

Markus Unterlercher

Andreas Jaeger

Friedrich Skofitsch

A radar monolithic microwave integrated circuit (MMIC) includes a trigger encoder configured to receive a clock signal comprising a plurality of clock pulses having a fixed amplitude and a trigger signal configured to indicate trigger events. The trigger encoder is configured to encode the trigger signal into the clock signal to generate a distributed clock signal by skipping at least one clock pulse of the plurality of clock pulses to indicate a trigger event. The radar MMIC is configured to output the distributed clock signal having the at least one clock pulse skipped to indicate the trigger event. The radar MMIC is configured to receive the distributed clock signal as a received distributed clock signal. The radar MMIC further includes a radar operation controller configured to detect the trigger event based on the received distributed clock signal and initiate a radar operation based on detecting the trigger event.

Trigger signaling through a clock signal in cascading radar systems

The present disclosure relates to a detection circuit for detecting oscillations of a regulated supply signal. The detection circuit includes a filter circuit to filter the regulated supply signal in order to obtain a filtered supply signal. A peak value detector circuit is designed to detect an extremum of the filtered supply signal. A comparator circuit is designed to compare the detected extreme value with a threshold value and to indicate an understepping or exceedance of the threshold value.

Device and method for detecting oscillations of a regulated supply signal

A power supply input selection circuit for selecting one of a plurality of power supply inputs to supply power to a driven circuit. The power supply input selection circuit includes a power supply input switching circuit configured to provide operating power to the driven circuit by routing a selected one of the power supply inputs to the driven circuit as a function of power supply selection information; and a logic circuit configured to change the power supply selection information if a default power mode does not match a desired power mode, the logic circuit being further configured to reset the power supply input selection circuit after changing the power supply selection information, the power supply selection information being maintained during the reset, in which the power supply input switching circuit selects a desired one of the power supply inputs after the logic circuit resets the power supply input selection circuit.

Power supply input selection circuit

An RFID transponder having an adjustable response field strength including a determination circuit formed to determine a quantity which is derivable from a field strength of an electromagnetic field prevailing at the location of the RFID transponder, a comparator formed to compare the determined quantity derived from the field strength with a threshold value, wherein the threshold value is based on the adjustable response field strength, which is higher than the minimum field strength required for the operation of the RFID transponder, and a deactivator formed to deactivate a functionality of the RFID transponder if the derived quantity falls below the threshold value.

Transponder and method for operating a transponder

Embodiments of the invention concern a circuit for pulling a potential at a node towards a feed potential which is present at a potential feed. The circuit has a first transistor with a controllable conductive path and in addition a resistive element. The controllable conductive path of the first transistor and the resistive element are coupled in series between the potential feed and the node. Furthermore, the circuit has a control element configured to control the first transistor so that a resistance of the controllable conductive path of the first transistor can be changed depending on a voltage drop at the resistive element. Furthermore, a method for pulling a potential at a node towards a feed potential and an integrated circuit with a pad which is pulled to the feed potential in the absence of an information carrying signal which is received or send by a functional circuitry of the integrated circuit.

Circuit and method for pulling a potential at a node towards a feed potential

A frequency regulator for varying a clock frequency of a power-supplied consumer operated in a clocked manner, wherein the frequency regulator is implemented to perform an overall variation of the clock frequency from an actual frequency to a set frequency, such that the overall variation is obtained by a plurality of clock changes, each with a different amount of change, wherein each of the respective amounts of change depends on a power change caused by the associated clock frequency change.

Clock frequency variation of a clocked current consumer

A current-supply circuit includes a regulation transistor. The regulation transistor is formed to regulate, based on a first supply voltage present on a first supply-voltage feed line, a second supply voltage present on a second supply-voltage feed line. The regulation transistor provides a supply current to the second supply-voltage feed line. The voltage-supply circuit further includes an operating-point determiner, which is formed to determine, based on information that is a measure for the supply current, whether the regulation transistor is at a low operating point at which the supply current is below a determined current. The voltage-supply circuit further includes a preventer that is formed to prevent, starting from the low operating point, a rise of the supply current by at least a predetermined current amount from occurring within a predetermined period.

Voltage-supply circuit and method for providing a circuit with a supply voltage

A circuit arrangement including a voltage supply device, which has an output, and that provides a variable supply voltage, a supply-voltage-controlled clock generator, which is coupled to the output of the voltage supply device, and that provides a system clock signal having a variable effective system clock frequency, a circuit section having a supply terminal, which is coupled to the output of the voltage supply device, and a clock input, which receives the system clock signal, and a regulating device that determines a supply-voltage-dependent supply current value and detects the extent to which the supply current value lies within a predetermined current value range, and which is coupled to the voltage supply device such that the supply voltage is regulated based on whether the supply current value lies within the predetermined current value range.

Circuit arrangement and method for operating a circuit arrangement

An apparatus for reducing leakage currents of an integrated circuit having at least one transistor, wherein the at least one transistor is connected between a supply potential and a first reference potential, the apparatus including a controller for controlling the first reference potential in dependence on the supply potential.

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Graz, Austria

Bernd Zimek