Hochfrequenzleistungsdetektor mit Offset- und Temperaturkompensation

Details

Veröffentlichungs-Nr.

EP4711775

Anmeldetag

2. September 2025

Veröffentlichung

18. März 2026

Rechtsraum

EP

IPC

G01R21/01(GILBERT BARRIE et al.)(KHATIB RAMI et al.)

Abstract

Wireless circuitry may include a transmission line that carries a signal and a power detector that measures the signal. The detector may include a rectifier coupled to a comparator over a differential path. An offset calibrating digital-to-analog converter (OSDAC), a reference generator, and a multiplexer may be disposed on a negative line of the differential path. The OSDAC may produce an offset-compensated voltage by adding different offset voltages to a voltage on the second line over time. The reference generator may generate a set of threshold voltages by adding different reference voltages to the offset-compensated voltage. A temperature sensor may adjust the reference voltages used to generate the threshold voltages based on a temperature of the power detector. The multiplexer may route different threshold voltages to a negative input of the comparator.

Anmelder

Firma

Apple Inc.

Land

🇺🇸 USA