CAPACITIVE WELDER AND METHOD FOR CHARGING SAME

Title:

CAPACITIVE WELDER AND METHOD FOR CHARGING SAME

Document Type and Number:

WIPO Patent Application WO/2013/105596

Kind Code:

A1

Abstract:

[Problem] To provide a capacitive welder capable of sufficiently resetting the magnetism of a welding transformer and capable of quickly charging a welding capacitor and also provide a method for charging the capacitive welder. [Solution] The capacitive welder comprises: a charging circuit; a welding transformer; a capacitor; a discharging switching element connected in parallel with a primary winding of the welding transformer and the capacitor that are connected in series; a bypass switching element connected in parallel with the primary winding; welding electrodes connected in parallel with a secondary winding of the welding transformer; and a control circuit for bringing the welding transformer into a reset allowing state by allowing a reset current to flow through the primary winding by the input power supplied through the charging circuit without supplying an on-signal to the bypass switching element and then supplying the on-signal to the bypass switching element so that the capacitor is charged through the bypass switching element by the input power supplied through the charging circuit.

Inventors:

KADOYA YASUO (JP)
ARAI KOUJI (JP)
KOMATSU AKIO (JP)

Application Number:

PCT/JP2013/050294

Publication Date:

July 18, 2013

Filing Date:

January 10, 2013

Export Citation:

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Assignee:

ORIGIN ELECTRIC (JP)

International Classes:

B23K11/26; B23K11/24; H02M9/00

Foreign References:

JP2011212699A	2011-10-27
JPH10216957A	1998-08-18
JPH10216957A	1998-08-18

Other References: