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JPS5775284A - Method for compensation of fluctuation of source voltage for welding - Google Patents

Method for compensation of fluctuation of source voltage for welding

Info

Publication number
JPS5775284A
JPS5775284A JP15068280A JP15068280A JPS5775284A JP S5775284 A JPS5775284 A JP S5775284A JP 15068280 A JP15068280 A JP 15068280A JP 15068280 A JP15068280 A JP 15068280A JP S5775284 A JPS5775284 A JP S5775284A
Authority
JP
Japan
Prior art keywords
output
circuit
source voltage
reference signal
compared
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
JP15068280A
Other languages
Japanese (ja)
Inventor
Kiyoshi Kawamata
Tadashi Aso
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.)
Via Mechanics Ltd
Original Assignee
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 Seiko Ltd filed Critical Hitachi Seiko Ltd
Priority to JP15068280A priority Critical patent/JPS5775284A/en
Publication of JPS5775284A publication Critical patent/JPS5775284A/en
Pending legal-status Critical Current

Links

Landscapes

  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Arc Welding Control (AREA)

Abstract

PURPOSE: To prevent drooping output characteristics from fluctuating much by the effect of the fluctuations in source voltage by changing the reference signal which is compared of negative feedback quantity in a welding power source of an output current negative feedback control system.
CONSTITUTION: An adder 3 as a comparator is provided between an output regulating element 1 and an output reference control reference voltage generating circuit 4, and the output from a source voltage fluctuation rate detecting circuit 2 is added to this. Then, the reference signal generated in the circuit 4 is increased or decreased in accordance with the increase or decrease in source voltage. As a result, the effect of compensation is increased. This reference signal is compared with the output current feedback quantity coming out through an output current value detecting circuit 7 and a conversion circuit 8, in an adder 5, and an output voltage control circuit 6 controls the output by means of the compared deviation thereof.
COPYRIGHT: (C)1982,JPO&Japio
JP15068280A 1980-10-29 1980-10-29 Method for compensation of fluctuation of source voltage for welding Pending JPS5775284A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15068280A JPS5775284A (en) 1980-10-29 1980-10-29 Method for compensation of fluctuation of source voltage for welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15068280A JPS5775284A (en) 1980-10-29 1980-10-29 Method for compensation of fluctuation of source voltage for welding

Publications (1)

Publication Number Publication Date
JPS5775284A true JPS5775284A (en) 1982-05-11

Family

ID=15502159

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15068280A Pending JPS5775284A (en) 1980-10-29 1980-10-29 Method for compensation of fluctuation of source voltage for welding

Country Status (1)

Country Link
JP (1) JPS5775284A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4933849A (en) * 1972-07-31 1974-03-28
JPS5391042A (en) * 1977-01-24 1978-08-10 Hitachi Seiko Kk Arc welding machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4933849A (en) * 1972-07-31 1974-03-28
JPS5391042A (en) * 1977-01-24 1978-08-10 Hitachi Seiko Kk Arc welding machine

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