Schweissstromquellen mit Aufwärtswandler-Bypass-Schaltung

Details

Veröffentlichungs-Nr.

EP4741091

Anmeldetag

29. Oktober 2025

Veröffentlichung

13. Mai 2026

Rechtsraum

EP

IPC

B23K9/10, H02M3/158

Abstract

Disclosed example welding-type power supplies include: a boost converter circuit configured to increase a DC supply voltage to supply an intermediate voltage to an intermediate DC bus; a buck converter circuit configured to convert the intermediate voltage to output welding-type power; a boost bypass circuit configured to selectively bypass the boost converter circuit; and control circuitry configured to: control the buck converter circuit to convert power from the intermediate DC bus to the welding-type power; in response to determining that a current of the welding-type power is less than a threshold output current, disable the boost bypass circuit and enable the boost converter circuit; and in response to determining that the current of the welding-type power is at least a target current and/or determining that a voltage of the welding-type power is less than a threshold output voltage, control the boost bypass circuit to bypass the boost converter circuit.

Anmelder

Firma

Illinois Tool Works Inc.

Land

🇺🇸 USA

Fachgebiete