Presentation 2009-10-23
Current Sensor and Welding Current Control using a Inverter Power Supply
Tastunori MUNESADA, Yoshiaki TAKASAKI, Toshikatu SONODA,
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Abstract(in English) The authors investigated the control of welding current with a frequency-controlled inverter power supply. Welding current control requires precision sensing of inverter current, which can reach 10kA. The current transformer and Hall effect devices commonly used in the industry do not offer the needed performance. The authors investigated the use of a shunt-type current sensor, using the simplest RI drop method to detect current. This paper discusses the investigation of the extent to which sensor inductance can be cancelled out using the shunt-type current sensor. Results indicate that the inductance component can be cancelled out, making non-inductive operation possible. A current sensor was prototyped and used in a frequency-controlled inverter power supply, demonstrating that welding current control is possible.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Inverter power supply / Welding current / Current sensor / Non-inductive operation
Paper # EMCJ2009-60,MW2009-109
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Conference Information
Committee EMCJ
Conference Date 2009/10/15(1days)
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Paper Information
Registration To Electromagnetic Compatibility (EMCJ)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Current Sensor and Welding Current Control using a Inverter Power Supply
Sub Title (in English)
Keyword(1) Inverter power supply
Keyword(2) Welding current
Keyword(3) Current sensor
Keyword(4) Non-inductive operation
1st Author's Name Tastunori MUNESADA
1st Author's Affiliation Kinki University School of Humanity-Oriented Science and Engineering()
2nd Author's Name Yoshiaki TAKASAKI
2nd Author's Affiliation Fukuoka Institute of Technology
3rd Author's Name Toshikatu SONODA
3rd Author's Affiliation Kinki University School of Humanity-Oriented Science and Engineering
Date 2009-10-23
Paper # EMCJ2009-60,MW2009-109
Volume (vol) vol.109
Number (no) 241
Page pp.pp.-
#Pages 6
Date of Issue