Spannungsregler

Details

Veröffentlichungs-Nr.

EP4528701

Aktenzeichen

EP24200386

Anmeldetag

13. September 2024

Veröffentlichung

26. März 2025

Rechtsraum

EP

IPC

G09G3/3233G05F1/575G09G3/36

Abstract

A voltage regulator for outputting a pixel power supply voltage supplied to pixels of a display panel is disclosed. The voltage regulator includes a voltage divider configured to generate a feedback voltage by dividing the pixel power supply voltage, an error amplifier configured to generate an amplifier output voltage by comparing a reference voltage and the feedback voltage, a variable phase compensating circuit configured to adjust the amplifier output voltage according to a load current, a source follower buffer configured to generate a control voltage by buffering the adjusted amplifier output voltage, and a pass transistor configured to output, as the pixel power supply voltage, an input voltage based on the control voltage.

Anmelder

Firma

Samsung Display Co., Ltd.

Land

🇰🇷 Südkorea

Fachgebiete