Umrichtersystem und Steuerungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP4822967

Anmeldetag

13. Februar 2026

Veröffentlichung

14. Oktober 2026

Rechtsraum

EP

Abstract

A converter system (1) includes an AC source (Vac), a DC output (Vdc), a switching circuit, a boost inductor (L<boost>), a grid inductor (L<2>), a ZVS inductor (L<ZVS>), a ZVS capacitor (C<ZVS>), and a controller (2). The switching circuit includes a first to fourth switches (S1, S2, S3, S4). The first switch (S1) and the third switch (S3) are electrically connected in series, and there is a first node (A) between the first switch (S1) and the third switch (S3). The second switch (S2) and the fourth switch (S4) are electrically connected in series, and there is a second node (B) between the second switch (S2) and the fourth switch (S4). The ZVS inductor (L<ZVS>) and the ZVS capacitor (C<ZVS>) are electrically connected in series between the first node (A) and the second node (B) to form a ZVS branch (11). The controller (2) controls the converter system (1) to transit between a unipolar switching mode and a phase-shift switching mode according to a duty cycle of the switching circuit.

Anmelder

Firma

DELTA ELECTRONICS, INC.

Land

🇹🇼 Taiwan