Abstract: 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.

Abstract: The present disclosure relates to a detection circuit 200 for detecting oscillations of a regulated supply signal 110. The detection circuit includes a filter circuit 210 to filter the regulated supply signal in order to obtain a filtered supply signal 212. A peak value detector circuit 220 is designed to detect an extreme value of the filtered supply signal. A comparator circuit 230 is designed to compare the detected extreme value with a threshold value and to indicate an understepping or exceedance of the threshold value.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A circuit for pulling a potential at a node towards a feed potential present at a potential feed comprises a first transistor comprising controllable paths and a resistive element, wherein the conductive paths of the first transistor and the resistive element are coupled in series between the potential feed and the node. The circuit further comprises a control element configured to control the first transistor to change a resistance of the controllable conductive path of the first transistor depending on a voltage drop at the resistive element. Furthermore, a method for pulling a potential at a node towards a feed potential.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: Arrangement for bidirectionally transmitting information between a unit configured to emulate a data processing system and a data processing unit, wherein the data processing unit has a data input device and a data output device, the emulating unit is configured to generate emulator information, and the emulator information relates to a power budget for the emulated data processing system.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.