Dc-Dc-Powr-Versorgung und Steuerungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP4749907

Anmeldetag

20. Oktober 2025

Veröffentlichung

27. Mai 2026

Rechtsraum

EP

IPC

H02M3/335, H02M1/32

Abstract

A DC-DC power supply (1, 1a) and control method thereof are provided. The DC-DC power supply (1, 1a) includes a transformer (2, 2a, 2b, 2c, 2d, 2e, 2f), a primary circuit (3), a secondary circuit (4) and a controller (5, 74). The transformer (2, 2a, 2b, 2c, 2d, 2e, 2f) includes a primary winding (21, 21a, 21b, 21c, 21d, 21e, 21f) and a secondary winding (22, 22a, 22b, 22c, 22d, 22e, 22f). The primary circuit (3) is connected with the primary winding (21, 21a, 21b, 21c, 21d, 21e, 21f) and includes a plurality of first primary switches (Q1, Q2, Q1a, Q2a, Q3a, Q4a, Q1b, Q2b, Q1c, Q2c, Q1d, Q2d, Q1e, Q2e), and a plurality of second primary switches (Q3, Q4, Q1a, Q2a, Q3a, Q4a, Q1b, Q2b, Q3d, Q4d, Q3e, Q4e). The secondary circuit (4) is connected with the secondary winding (22, 22a, 22b, 22c, 22d, 22e, 22f). The controller (5, 74) is configured to alternately control the operation of the first primary switches (Q1, Q2, Q1a, Q2a, Q3a, Q4a, Q1b, Q2b, Q1c, Q2c, Q1d, Q2d, Q1e, Q2e) and the second primary switches (Q3, Q4, Q1a, Q2a, Q3a, Q4a, Q1b, Q2b, Q3d, Q4d, Q3e, Q4e) for periodically adjusting a turn-off loss difference therebetween.

Anmelder

Firma

Delta Electronics, Inc.

Land

🇹🇼 Taiwan