Method and device for operating a resistance welding device

A technology of resistance welding and triggering device, applied in welding power supply, welding power supply and other directions, can solve the problem of increased switching loss, and achieve the effects of small resistance, light weight, and less magnetization loss
CN102554440AActive Publication Date: 2012-07-11ROBERT BOSCH GMBH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ROBERT BOSCH GMBH
Publication Date
2012-07-11

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Abstract

The invention relates to a method for operating a resistance welding device (10). The polarity of the direct voltage (Up) and the number of drive pulses during a time period of the drive device (14) are varied, without changing the pulse width of the drive pulses from outside of the normal circuit tolerances. The method has contribute to reduce switching loss and install a transformer with smaller structure volume.
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Description

Technical field

[0001] The invention relates to a method and a device for operating a resistance welding device especially by means of a (single-phase) intermediate frequency welding transformer having a transformer core, a primary winding and a secondary winding.

[0002] Although the following basically refers to an intermediate frequency welding transformer, the present invention is not limited to this. Background technique

[0003] The intermediate frequency welding transformer has been applied to the welding process for a certain period of time, and a square wave alternating voltage is usually provided to the intermediate frequency welding transformer by a current commutator. The transformer outputs a low voltage with a higher current on its secondary winding, which is then rectified and used in the welding process. The operating frequency of the intermediate frequency transformer is high, and such a high frequency enables effective energy conversion and therefore the use of ...

Claims

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