Infineon Technologies Ag

Lantiq Deutschland Gmbh

Dario Giotta

Andreas Wiesbauer

David San Segundo Bello

Andrea Baschirotto

Martin Clara

Thomas Ferianz

Richard Gaggl

Antonio Di Giandomenico

Christian Fleischhacker

Fabio Ballarin

Thomas Poetscher

Thomas Pötscher

Rüdiger Koban

Alfonso D'Andretta

Ivonne Di Sancarlo

Thomas Poctscher

A self-oscillating driver circuit includes a driver stage, a feedforward path which is coupled to an input of the driver stage, and a feedback path which couples an output of the driver stage to an input of the feedforward path. The feedforward path includes a feedforward filter which is designed as an active filter. In order to prevent an oscillatory state of the driver circuit at an unwanted frequency, it is proposed that an internal state variable of the feedforward filter be monitored and that the feedforward filter be reset if the value of the monitored internal state variable is outside a predefined range.

Self-oscillating driver circuit

A self-oscillating driver circuit comprises a driver stage, a feedforward path which is coupled to an input of the driver stage, and a feedback path which couples an output of the driver stage to an input of the feedforward path. The feedforward path comprises a feedforward filter which is designed as an active filter. In order to prevent an oscillatory state of the driver circuit at an unwanted frequency, it is proposed that an internal state variable of the feedforward filter be monitored and that the feedforward filter be reset if the value of the monitored internal state variable is outside a predefined range.

Systems and methods for implementing a programmable network for a multimode conditionally stable operational amplifier are disclosed.

Programmable compensation network for operational amplifiers

This disclosure relates to a common mode regulation in multi stage differential amplifiers.

Common mode control circuitry for multi-stage operational amplifiers

The invention relates to a line driver arrangement for driving signals via at least one subscriber line, provided with:

Line driver

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Travisio, Italy

Dario Giotta