Aktive Gleichtaktkompensation für Verbesserte Verstärkerleistung

Details

Veröffentlichungs-Nr.

EP4064559

Aktenzeichen

EP22163757

Anmeldetag

23. März 2022

Veröffentlichung

12. März 2025

Erteilung

12. März 2025

Rechtsraum

EP

IPC

H03F3/183H03F3/217H03F3/45

Abstract

Various techniques are provided to reduce common mode disturbance associated with an amplifier, such as a class D amplifier. In one example, an amplifier (110) includes a power stage (140) configured to generate first and second PWM signals. The amplifier (110) further includes an integration stage (210) comprising input nodes configured to receive an input differential analog signal. The integration stage (210) is configured to generate an output differential analog signal in response to the PWM signals and the input differential analog signal. The amplifier (110) further includes an active compensation circuit (250) configured to provide a compensation signal to the integration stage (210) to reduce disturbances at the input nodes associated with the PWM signals switching between a common mode and a differential mode. Additional devices, systems, and methods are also provided.

Anmelder

Firma

Synaptics, Incorporated

Land

🇺🇸 USA

Fachgebiete