Abstract: The invention relates to a method for protecting a component (6) within an audio device (4) from the exceedance of a maximum internal temperature (TI), wherein a power loss (V) of the component (6) is determined, a measurement temperature (TM) is measured on the component (6), a temperature difference (DT) for the component (6) between the measurement temperature (TM) on the component and the internal temperature (TI) is determined from the power loss (V) by means of a thermal model (14) of the component (6), the internal temperature (TI) is determined as the sum of the measurement temperature (TM) and the temperature difference (DT), a permissible maximum value (VM) for the power loss (V) is determined on the basis of the internal temperature (TM) and known component data (16) of the component (6), and the component (6) is operated in a normal operating mode (N) if the power loss (V) does not exceed the maximum value (VM) or the component (6) is otherwise operated in reduced-power economy operating mode (S)

Abstract: The invention relates to a method for operating a class-D amplifier (2) for an audio signal (4), which class-D amplifier contains an output stage (10) and a signal-processing unit (12) in a signal path (6), wherein a voltage (U) of at least two magnitudes (U1, U2) is provided for the output stage (10), a voltage requirement (B) of the output stage (10) for the audio signal (4) is predictively determined from the audio signal (4) at a measurement location (14) before the signal-processing unit (12), a magnitude (U1, U2) that is minimally sufficient for the voltage requirement (B) is selected on the basis of the voltage requirement (B) and said magnitude is applied to the output stage (10) before the amplification.

Abstract: The invention relates to a method for operating a class-D amplifier (2) for an audio signal (4), which class-D amplifier contains an output stage (10) and a signal-processing unit (12) in a signal path (6), wherein a voltage (U) of at least two magnitudes (U1, U2) is provided for the output stage (10), a voltage requirement (B) of the output stage (10) for the audio signal (4) is predictively determined from the audio signal (4) at a measurement location (14) before the signal-processing unit (12), a magnitude (U1, U2) that is minimally sufficient for the voltage requirement (B) is selected on the basis of the voltage requirement (B) and said magnitude is applied to the output stage (10) before the amplification.

Abstract: In a consumer arrangement (2) with a power supply (4) with power supply input (6), with a consumer (10) which is supplied with an output power (A) by the power supply (4), wherein the power supply (4) contains a PFC module (12) with a DC link (14), wherein the PFC module (12) contains a regulator (16) for supplying the DC link (14), a characteristic parameter (K) correlated with the output power (A) required by the consumer (10) is fed back into the regulator (16). In a method for operating a consumer arrangement (2) with a power supply (4), with a consumer (10) which is supplied with an output power (A) by the power supply (4), wherein the power supply (4) contains a PFC module (12), wherein the PFC module (12) contains a regulator (16), a characteristic parameter correlated with the output power (A) required by the consumer (10) is fed back into the regulator (16).

Abstract: In a consumer arrangement (2) with a power supply (4) with power supply input (6), with a consumer (10) which is supplied with an output power (A) by the power supply (4), wherein the power supply (4) contains a PFC module (12) with a DC link (14), wherein the PFC module (12) contains a regulator (16) for supplying the DC link (14), a characteristic parameter (K) correlated with the output power (A) required by the consumer (10) is fed back into the regulator (16). In a method for operating a consumer arrangement (2) with a power supply (4), with a consumer (10) which is supplied with an output power (A) by the power supply (4), wherein the power supply (4) contains a PFC module (12), wherein the PFC module (12) contains a regulator (16), a characteristic parameter correlated with the output power (A) required by the consumer (10) is fed back into the regulator (16).

Abstract: The invention relates to a method for protecting a component (6) within an audio device (4) from the exceedance of a maximum internal temperature (TI), wherein a power loss (V) of the component (6) is determined, a measurement temperature (TM) is measured on the component (6), a temperature difference (DT) for the component (6) between the measurement temperature (TM) on the component and the internal temperature (TI) is determined from the power loss (V) by means of a thermal model (14) of the component (6), the internal temperature (TI) is determined as the sum of the measurement temperature (TM) and the temperature difference (DT), a permissible maximum value (VM) for the power loss (V) is determined on the basis of the internal temperature (TM) and known component data (16) of the component (6), and the component (6) is operated in a normal operating mode (N) if the power loss (V) does not exceed the maximum value (VM) or the component (6) is otherwise operated in reduced-power economy operating mode (S)

Abstract: Converter for the converting a DC input voltage into a DC output voltage, having at least one inductance and capacitance, which are interconnected in a power-conducting path, wherein a current inductance value of the inductance depends on a current value of a current flowing through the coil, having a regulator for regulating the DC output voltage to a setpoint, wherein the regulator comprises a parameter set that determines its regulation behavior, having a measurement module for determining at least one characteristic value of at least one characteristic parameter of the converter, and the converter contains a plurality of interchangeable parameter sets for the regulator, wherein each one of the parameter sets in the regulator can be activated, and having a control module for exchanging and activating each of the parameter sets in the regulator as a function of at least one of the characteristic values.

Abstract: A converter is provided for converting a DC input voltage (UE) into a DC output voltage (UA). The converter includes a regulator for regulating the DC output voltage (UA) to a target value (UAS), wherein the regulator comprises a parameter set that determines the regulation behavior thereof. The converter includes a measurement module for determining at least one characteristic value (K) of at least one characteristic parameter of the converter, and at least two interchangeable parameter sets for the regulator Each one of the parameter sets can be activated in the regulator, wherein a first one of the parameter sets has a slower regulation behavior with regard to the DC output voltage (UA) than a second of the parameter sets. The converter includes a control module for the exchange and activation of each of the parameter sets in the regulator depending on at least one of the characteristic parameters.

Abstract: An interference suppression stage for a power supply. The interference suppression stage has an input connected to an input module of the power supply, the input module connected to an electrical supply system, an output connected to an output module of the power supply, the output module connected to an electrical load, at least two power paths connected in parallel between input and output, wherein each of the power paths are configured to be switched between an active state and an inactive state, and a control unit configured to switch at least one of the power paths to the inactive state in a saving mode. The control unit switches different power paths alternately in time to inactive in saving mode.

Abstract: An interference suppression stage for a power supply. The interference suppression stage has an input connected to an input module of the power supply, the input module connected to an electrical supply system, an output connected to an output module of the power supply, the output module connected to an electrical load, at least two power paths connected in parallel between input and output, wherein each of the power paths are configured to be switched between an active state and an inactive state, and a control unit configured to switch at least one of the power paths to the inactive state in a saving mode. The control unit switches different power paths alternately in time to inactive in saving mode.

Abstract: Known types of amplifiers include so-called class D amplifiers, which first use a pulse-width modulator to convert an analog signal into a pulse-width modulated switching signal, which is then amplified and subsequently converted back into a continuously variable voltage via a filter. This type of amplifier is particularly energy-efficient and is therefore preferably used for high-power amplifiers. The invention relates to an amplifier device 1 comprising a control device (5), wherein the control device (5) has an input interface for an audio signal (2), and comprising an amplifier unit (9) for amplifying the audio signal (2, 8) downstream of the control device (5), wherein the control device (5) has a delay module (6) that is designed to transmit the audio signal (2), delayed by a delay value delta_t, to the amplifier unit (9) and to automatically and/or autonomously reduce the delay value delta_t from a starting value delta_t to a final value during an adaptation phase AP.

Abstract: Known types of amplifiers include so-called class D amplifiers, which first use a pulse-width modulator to convert an analogue signal into a pulse-width modulated switching signal, which is then amplified and subsequently converted back into a continuously variable voltage via a filter. This type of amplifier is particularly energy-efficient and is therefore preferably used for high-power amplifiers. The invention relates to an amplifier device 1 comprising a control device (5), wherein the control device (5) has an input interface for an audio signal (2), and comprising an amplifier unit (9) for amplifying the audio signal (2, 8) downstream of the control device (5), wherein the control device (5) has a delay module (6) that is designed to transmit the audio signal (2), delayed by a delay value delta_t, to the amplifier unit (9) and to automatically and/or autonomously reduce the delay value delta_t from a starting value delta_t to a final value during an adaptation phase AP.