Gleichstromwandler und Steuerungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP4277102

Aktenzeichen

EP23167942

Anmeldetag

14. April 2023

Veröffentlichung

12. November 2025

Erteilung

12. November 2025

Rechtsraum

EP

IPC

H02M3/00H02M3/335H02M3/337H02M1/34H02M1/00

Abstract

A DC/DC converter (1, 1a, 1b, 1c) includes a switching circuit (3) and a capacitor (C1). The switching circuit (3) includes a first bridge arm and a second bridge arm connected in parallel. The first bridge arm includes a first switch (S1) and a second switch (S2). The second bridge arm includes a third switch (S3) and a fourth switch (S4). The capacitor (Cl) is electrically connected with a node (a) between the first switch (S1) and the second switch (S2). While the switching circuit (3) is switched from a half-bridge mode to a full-bridge mode, the duty cycle of the control signal for controlling the fourth switch (S4) is gradually decreased from 100% to be synchronized with the duty cycle of the control signal for controlling the first switch (S1). Then, the duty cycle of the control signal for controlling the third switch (S3) is gradually increased from zero to be synchronized with the duty cycle of the control signal for controlling the second switch (S2).

Anmelder

Firma

DELTA ELECTRONICS (SHANGHAI) CO., LTD

Land

🇨🇳 China

Fachgebiete