Vorrichtung zur Durchführung von Widerstandssteuerung auf einer Strommesskomponente in einer Elektronischen Vorrichtung und Zugehöriges Verfahren

Details

Veröffentlichungs-Nr.

EP3121964

Aktenzeichen

EP16158391

Anmeldetag

3. März 2016

Veröffentlichung

1. August 2018

Erteilung

1. August 2018

Rechtsraum

EP

IPC

H03K17/14H03K17/082G01R19/00

Abstract

An apparatus (100, 500, 600) for performing resistance control on a current sensing component (MO) in an electronic device (100, 500, 600) and an associated method are provided. For example, the apparatus (100, 500, 600) may comprise a power switching unit (MO) and a feedback module, and the power switching unit (MO) is utilized as the current sensing component (MO) when the power switching unit (MO) enables the power path. The feedback module may comprise: a power switching unit replica (MS) that receives a first voltage at the battery terminal (VBAT) and outputs a second voltage; a first current source (IA), coupled between the power switching unit replica (MS) and a ground terminal, arranged to receive the second voltage; a reference voltage generator that generates a third voltage; and an error amplifier (110) that receives the second voltage and the third voltage and outputs a fourth voltage, wherein the feedback module controls both of the power switching unit (MO) and the power switching unit replica (MS) according to the fourth voltage.

Anmelder

Firmen

MediaTek Inc.
MediaTek, Inc

Land

🇹🇼 Taiwan

Fachgebiete