JPS5711775A - Direct current arc welding machine - Google Patents

Direct current arc welding machine

Info

Publication number
JPS5711775A
JPS5711775A JP8730180A JP8730180A JPS5711775A JP S5711775 A JPS5711775 A JP S5711775A JP 8730180 A JP8730180 A JP 8730180A JP 8730180 A JP8730180 A JP 8730180A JP S5711775 A JPS5711775 A JP S5711775A
Authority
JP
Japan
Prior art keywords
thyristors
circuit
reactor
elements
switching element
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
JP8730180A
Other languages
Japanese (ja)
Inventor
Hideyuki Koyama
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP8730180A priority Critical patent/JPS5711775A/en
Publication of JPS5711775A publication Critical patent/JPS5711775A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain stable welding current by connecting series circuits of impedance elements and switching elements which switch in synchronization with welding start and stop signals in parallel with the control elements on the primary side of a welding transformer.
CONSTITUTION: A series circuit of an AC reactor 8a and a switching element 7a is connected in parallel with an antiparallel circuit of thyristors 4a, 4a', and similarly to this, a series circuit of an AC reactor 8b and a switching element 7b is connected in parallell with an antiparallel circuit of thyristors 4b, 4b' and a series circuit of an AC reactor 8c and a switching element 7c with an antiparallel circuit of thyristors 4c, 4c'. Then, even if the phases of the conduction angles of the thyristors 4aW4c, 4a'W4c' go to ≥60°, voltage is applied through the elements 7aW7c and the reactors 8aW8c; therefore, no zero sections of the output voltage are produced, hence ripples are less.
COPYRIGHT: (C)1982,JPO&Japio
JP8730180A 1980-06-26 1980-06-26 Direct current arc welding machine Pending JPS5711775A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8730180A JPS5711775A (en) 1980-06-26 1980-06-26 Direct current arc welding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8730180A JPS5711775A (en) 1980-06-26 1980-06-26 Direct current arc welding machine

Publications (1)

Publication Number Publication Date
JPS5711775A true JPS5711775A (en) 1982-01-21

Family

ID=13910997

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8730180A Pending JPS5711775A (en) 1980-06-26 1980-06-26 Direct current arc welding machine

Country Status (1)

Country Link
JP (1) JPS5711775A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5912614U (en) * 1982-07-16 1984-01-26 三ツ星ベルト株式会社 Molding mold

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5334654A (en) * 1976-09-14 1978-03-31 Matsushita Electric Ind Co Ltd Electric power source for dc arc welding
JPS542954A (en) * 1977-06-09 1979-01-10 Matsushita Electric Ind Co Ltd Powe source circuit of direct current arc welding equipment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5334654A (en) * 1976-09-14 1978-03-31 Matsushita Electric Ind Co Ltd Electric power source for dc arc welding
JPS542954A (en) * 1977-06-09 1979-01-10 Matsushita Electric Ind Co Ltd Powe source circuit of direct current arc welding equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5912614U (en) * 1982-07-16 1984-01-26 三ツ星ベルト株式会社 Molding mold

Similar Documents

Publication Publication Date Title
JPS5619979A (en) Phase control type alternating current welding machine
JPS5711775A (en) Direct current arc welding machine
JPS57156678A (en) Electric power source device
GB2301494A (en) Forward converter
JPS5566278A (en) Automatic commutation-type dc-dc converter
JPS5619463A (en) Electric load unit
JPS5563575A (en) Control for self-excited inverter device
JPS5540020A (en) Dc power source device for both welding and gouging
JPS54113038A (en) Dc power supply circuit
JPS5783A (en) Starting device at pumping-up type electric power station
JPS5756177A (en) Resistance welding machine
JPS5577392A (en) Controller for induction motor
SU1051712A1 (en) Switch
JPS5463693A (en) X-ray unit
JPS5554274A (en) Arc welding machine
SU1471267A1 (en) Low-voltage ac-to-dc converter
JPS5636378A (en) Arc welding machine
JPS5686679A (en) Direct current arc welding machine
JPS5569822A (en) Power unit
JPS5790728A (en) Stabilizer of load electric power
JPS54106794A (en) Washing of plasma generator
JPS53103138A (en) Thyristor fault detector
JPS5685123A (en) Ignition control circuit for circuit constant generator
JPS5541643A (en) High voltage generating circuit
JPS54109156A (en) Phase control circuit