JPS5597875A - Transistor direct current power supply for welding - Google Patents

Transistor direct current power supply for welding

Info

Publication number
JPS5597875A
JPS5597875A JP394479A JP394479A JPS5597875A JP S5597875 A JPS5597875 A JP S5597875A JP 394479 A JP394479 A JP 394479A JP 394479 A JP394479 A JP 394479A JP S5597875 A JPS5597875 A JP S5597875A
Authority
JP
Japan
Prior art keywords
arc
circuit
welding
reference signal
current
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
JP394479A
Other languages
Japanese (ja)
Inventor
Kiroku Fujiwara
Takeshi Araya
Kiju Endo
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 Ltd
Via Mechanics Ltd
Original Assignee
Hitachi Ltd
Hitachi Seiko 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 Ltd, Hitachi Seiko Ltd filed Critical Hitachi Ltd
Priority to JP394479A priority Critical patent/JPS5597875A/en
Publication of JPS5597875A publication Critical patent/JPS5597875A/en
Pending legal-status Critical Current

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  • Arc Welding Control (AREA)

Abstract

PURPOSE: To change over conducting circuits depending upon the magnitude of arc current and improve arc break and arc start characteristics in small current region by providing a circuit of comparing the output signal of an arc current feedback circuit and the reference signal corresponding to the two arc voltage.
CONSTITUTION: The arc current feedback circuit is constituted by an arc voltage comparing circuit 5, comparator 6, welding current detecting circuit 12 and amplifier circuit 13. The output signal of this circuit and the reference signal corresponding to the two arc voltages Er1, Er2 (Er1 > Er2) which are set according to the welding works 2 and are synchronized to changeover switches 15, 7, 8 are inputted to the comparator 6 for transistor circuits. When the arc current is larger, the feedback signal and reference signal Er2 are conducted and when the arc current is smaller, the reference signal is conducted, whereby the control signal is applied to the transistor circuit 3. Welding defect is prevented by this power supply.
COPYRIGHT: (C)1980,JPO&Japio
JP394479A 1979-01-19 1979-01-19 Transistor direct current power supply for welding Pending JPS5597875A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP394479A JPS5597875A (en) 1979-01-19 1979-01-19 Transistor direct current power supply for welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP394479A JPS5597875A (en) 1979-01-19 1979-01-19 Transistor direct current power supply for welding

Publications (1)

Publication Number Publication Date
JPS5597875A true JPS5597875A (en) 1980-07-25

Family

ID=11571224

Family Applications (1)

Application Number Title Priority Date Filing Date
JP394479A Pending JPS5597875A (en) 1979-01-19 1979-01-19 Transistor direct current power supply for welding

Country Status (1)

Country Link
JP (1) JPS5597875A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5829571A (en) * 1981-08-12 1983-02-21 Mitsubishi Electric Corp Dc arc welding device
JPS58151964A (en) * 1982-01-05 1983-09-09 ペ−タ−・プ−シユナ− Electronic welding energy source
JPS59148177U (en) * 1983-03-26 1984-10-03 株式会社ダイヘン Consumable electrode type arc welding power supply
US4485293A (en) * 1981-04-10 1984-11-27 Mitsubishi Denki Kabushiki Kaisha Short circuit transfer arc welding machine
CN106695071A (en) * 2016-12-30 2017-05-24 唐山松下产业机器有限公司 Arc striking control method and device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485293A (en) * 1981-04-10 1984-11-27 Mitsubishi Denki Kabushiki Kaisha Short circuit transfer arc welding machine
JPS5829571A (en) * 1981-08-12 1983-02-21 Mitsubishi Electric Corp Dc arc welding device
JPS58151964A (en) * 1982-01-05 1983-09-09 ペ−タ−・プ−シユナ− Electronic welding energy source
JPS6352992B2 (en) * 1982-01-05 1988-10-20 Puushunaa Peetaa
JPS59148177U (en) * 1983-03-26 1984-10-03 株式会社ダイヘン Consumable electrode type arc welding power supply
JPH0335490Y2 (en) * 1983-03-26 1991-07-26
CN106695071A (en) * 2016-12-30 2017-05-24 唐山松下产业机器有限公司 Arc striking control method and device

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