Infineon Technologies Ag

Lantiq Deutschland Gmbh

Lantiq Beteiligungs Gmbh & Co. Kg

Joachim Pichler

Emanuele Bodano

Maria Lagioia

Luca Bizjak

Christian Jenkner

Gerhard Noessing

Thomas Ferianz

Richard Gaggl

Peter Bogner

Stefano Marsili

Bernhard Zojer

Vratislav Michal

Volha Kharko Subotskaya

Thomas Linder

Gerfried Krampl

Peter Linortner

Mark Schauer

Robert Piskernik

Maria Giovanna Lagiola

Massimiliano Fieni

A power stage having a power transistor coupled between a power supply and a switching node; a charge pump coupled between the power supply and a gate of the power transistor; and a gate driver configured to charge the gate of the power transistor until the gate voltage reaches a predefined voltage, and further charge the gate of the power transistor from the charge pump.

Power stage with sequential power transistor gate charging

According to an embodiment, a method of operating a switching power supply includes applying a periodic switching signal to a first switch that is coupled to an output node, detecting an offset delay between applying the periodic switching signal and a change in voltage of the output node, calculating a corrected midpoint of a half phase of the periodic switching signal based on the offset delay, generating a sampling pulse based on the corrected midpoint, and sampling a current at the output node according to the sampling pulse.

System and method for switched power supply with delay measurement

A method of operating a switched-mode power supply (SMPS) includes starting up the switched-mode power supply by determining a rate of increase of a duty cycle of a pulse width modulated (PWM) signal based on an input voltage and a switching frequency of the SMPS; and generating the PWM signal having the duty cycle in accordance with the determined rate of increase.

System and method for starting a switched-mode power supply

System and method for switched power supply current sampling

Methods and devices are provided wherein a change of a mode of operation is performed based on a time where both switches of a first and a second switch are open.

Voltage converter for first and second modes of operation

A circuit contains a successive approximation register and an adjustable capacitor with a set input for adjusting a capacitance value of the adjustable capacitor. Moreover, it comprises a comparator having an input coupled to a terminal of the adjustable capacitor, and with an at least one output, wherein at least one of the outputs of the comparator is coupled to an input of the successive approximation register. The circuit also includes an analog input which is coupled to a terminal of the adjustable capacitor. The circuit may be set into a first operating state and a second operating state, wherein an output of the circuit is controlled in the first operating state by the successive approximation register and is not controlled in the second operating state by the successive approximation register, but by the comparator.

Analog-to-digital converter and control circuit with a low quiescent current at low load

Audio processing systems and corresponding methods are disclosed, wherein the audio processing system comprises at least one of an analog portion and a digital portion.

Audio processing apparatus

Devices and methods are provided in which a driver is supplied via a first current path and a second current path which can comprise a switching element.

Driver circuit

A CODEC circuit for POTS system comprises a digital circuit for outputting a digital control signal having a first bit width, the digital control signal being indicative of a voltage to be applied to a POTS subscriber line pair. Further, the CODEC comprises a noise shaper coupled to an output of the digital circuit for generating a noise-shaped control signal and a digital-to-analog converter coupled to an output of the noise shaper, the input of the digital-to-analog converter having a second bit width being larger than 1 and smaller than the first bit width.

Codec circuit for POTS system

A CODEC circuit for POTS system comprises a digital circuit for outputting a digital control signal having a first bit width, the digital control signal being indicative of a voltage to be applied to a POTS subscriber line pair. Further, the CODEC circuit comprises a noise shaper coupled to an output of the digital circuit for generating a noise-shaped control signal and a digital-to-analog converter coupled to an output of the noise shaper, the input of the digital-to-analog converter having a second bit width being larger than 1 and smaller than the first bit width.

CODEC circuit for POTS system

Semiconductor devices and methods are disclosed wherein a switching element or a current path is coupled to a substrate, and wherein a further element is coupled to said substrate and a control input of said switching element or said current path. Accordingly, in at least one embodiment, a semiconductor device comprises a substrate and a switching element with a control input coupled to the substrate. The semiconductor device includes a compensation element having a control input and an output. The control input of the compensation element is coupled to the substrate and the output of the compensation element is coupled to the control input of the switching element.

Semiconductor device and method for controlling a semiconductor device

A switching control circuit for a DC-DC converter comprises an input terminal to receive input signals and an output terminal to couple the switching control circuit to a switch of the DC-DC converter. A quasi-static supply path is coupled to the input terminal to receive first signals based on the input signals and coupled to the output terminal to provide output signals to the output terminal based on the input signals. A dynamic supply path is coupled to the input terminal to receive second signals based on the input signals in-phase with the first signals and coupled to the output terminal to provide output signals to the output terminal based on the input signals.

Switching control in DC-DC-converters

The present invention relates to a ring voltage generation circuit for generating a ring voltage (VTR) between a TIP lead () and a RING lead () with minimized power loss for electronic subscriber circuits, comprising: a) an amplifier circuit () which receives an input voltage (VI) for amplifying the input voltage (VI) to provide the ring voltage (VTR); 

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Landskron, Austria

Joachim Pichler