JPS5722874A - Power source device for arc welder - Google Patents

Power source device for arc welder

Info

Publication number
JPS5722874A
JPS5722874A JP9503380A JP9503380A JPS5722874A JP S5722874 A JPS5722874 A JP S5722874A JP 9503380 A JP9503380 A JP 9503380A JP 9503380 A JP9503380 A JP 9503380A JP S5722874 A JPS5722874 A JP S5722874A
Authority
JP
Japan
Prior art keywords
current
power source
inverter
electrodes
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9503380A
Other languages
Japanese (ja)
Inventor
Hideyasu Umetsu
Tsuyoshi Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Engineering Co Ltd
Hitachi Ltd
Original Assignee
Hitachi Engineering Co Ltd
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Engineering Co Ltd, Hitachi Ltd filed Critical Hitachi Engineering Co Ltd
Priority to JP9503380A priority Critical patent/JPS5722874A/en
Publication of JPS5722874A publication Critical patent/JPS5722874A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arc Welding Control (AREA)
  • Control Of Voltage And Current In General (AREA)

Abstract

PURPOSE: To obtain a power source device of low-price, high efficiency and high reliability by converting a current from a DC power source which is of high voltage and small current used for a two-electrode, system arc welder into an AC through an inverter, converting this AC into a low voltage and a large current through a transformer and rectifying this current, then applying it to electrodes.
CONSTITUTION: A constant-current from a controllable DC power source 26 is converted into an AC through an inverter 30 and this AC is dropped to an arbitrary voltage through a transformer 34. An obtained AC is applied to electrodes 42, 44 of a welder through rectifiers 38, 40. Voltage waveform at each part among AWE is as shown in figures, and pulse like arbitrary voltages having O-current intervals at an arbitrary frequency are made to apply between the electrodes 42, 44 and a base material 46. By said constitution, the current capacity of the inverter 30 is put up with a small one, the multiplicity of transistors and the like which are used is made less and the capacitors 32, 36 are allowed to be in a small size. Further, low-priced ready-made rectifiers are possibly used for the rectifier 38, 40.
COPYRIGHT: (C)1982,JPO&Japio
JP9503380A 1980-07-14 1980-07-14 Power source device for arc welder Pending JPS5722874A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9503380A JPS5722874A (en) 1980-07-14 1980-07-14 Power source device for arc welder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9503380A JPS5722874A (en) 1980-07-14 1980-07-14 Power source device for arc welder

Publications (1)

Publication Number Publication Date
JPS5722874A true JPS5722874A (en) 1982-02-05

Family

ID=14126768

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9503380A Pending JPS5722874A (en) 1980-07-14 1980-07-14 Power source device for arc welder

Country Status (1)

Country Link
JP (1) JPS5722874A (en)

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