Elektronische Vorrichtung zur Verstärkung der Batteriespannung unter Verwendung eines Ladegeräts und Verfahren zum Betrieb davon

Details

Veröffentlichungs-Nr.

EP4776465

Anmeldetag

6. August 2025

Veröffentlichung

12. Februar 2026

Rechtsraum

EP

Abstract

According to an embodiment, an electronic device (201) may include a battery (270), a switched capacitor voltage divider, SCVD (250) including a plurality of switches (Q1, Q2, Q3, Q4) and a flying capacitor (CF), and configured to convert a voltage of externally supplied power according to a specified ratio and supply the converted voltage to the battery or a system (280) of the electronic device, a switch circuit arranged between the SCVD and a node (350) for supplying power to the system, and a control circuit (220). According to an embodiment, the control circuit may be configured to identify a battery voltage (VBAT) output from the battery. According to an embodiment, the control circuit may be configured to, based on identifying that the battery voltage is lower than a specified voltage, control the plurality of switches included in the SCVD so that the flying capacitor and the battery are connected in series during a first time period of a switching cycle of the plurality of switches. According to an embodiment, the control circuit may be configured to control the plurality of switches so that the flying capacitor and the battery are connected in parallel during a second time period after the first time period of the switching cycle. According to an embodiment, based on applying a voltage that is a sum of a charging voltage of the flying capacitor and the battery voltage to the switch circuit according to a duty ratio representing a ratio of the first time period to the switching cycle, a first voltage higher than the specified voltage may be supplied to the node through the switch circuit.

Anmelder

Firma

Samsung Electronics Co., Ltd

Land

🇰🇷 Südkorea