Berührungssensorsteuerung mit einem Leitungstreiber und Verfahren zur Kalibrierung eines Leitungstreibers

Details

Veröffentlichungs-Nr.

EP4718220

Anmeldetag

30. September 2024

Veröffentlichung

1. April 2026

Rechtsraum

EP

IPC

G06F3/041, G06F3/044

Abstract

A touch sensor controller including a line driver and a method of calibrating a line driver for a touch panel are described. The line driver is configured to be coupled to a row or column of a touch panel, the method includes providing a line drive current and providing a sense current related to the drive current. The sense current values are digitized and an overload status determined dependent on the digitized sense current values. The line driver is controlled to increase or decrease the line drive current dependent on the overload status.

Anmelder

Firma

NXP B.V.

Land

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