Schweißstromgenerator mit einem zwei unterschiedliche Induktanzkonditionen aufweisenden DC-Generator

Details

Veröffentlichungs-Nr.

EP2444191

Aktenzeichen

EP11186063

Anmeldetag

21. Oktober 2011

Veröffentlichung

30. September 2020

Erteilung

30. September 2020

Rechtsraum

EP

IPC

B23K9/095B23K9/10B23K9/173

Abstract

The present application relates to a welding power supply (11), wherein total resistance at an output side of the power supply (11) is measured in a measurement mode based on the output voltage when an output current I generated by an inverter circuit (22) is set as a current. Inductances, when the output current I are set to two currents corresponding to a normal region and oversaturated region of a DC reactor (25), are detected. A total inductance is calculated as a function by linearly interpolating the two inductances. During welding, a controller (31) corrects changes in the voltage related to the total resistance and the total inductance for the detected output voltage to calculate the tip voltage.

Anmelder

Firma

Daihen Corporation

Land

🇯🇵 Japan

Fachgebiete