JPS59124672U - Inverter protection circuit in resistance welding machine - Google Patents

Inverter protection circuit in resistance welding machine

Info

Publication number
JPS59124672U
JPS59124672U JP1812283U JP1812283U JPS59124672U JP S59124672 U JPS59124672 U JP S59124672U JP 1812283 U JP1812283 U JP 1812283U JP 1812283 U JP1812283 U JP 1812283U JP S59124672 U JPS59124672 U JP S59124672U
Authority
JP
Japan
Prior art keywords
inverter
welding machine
resistance welding
protection circuit
output
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
JP1812283U
Other languages
Japanese (ja)
Inventor
永見　喜次郎
誠 牧野
健 正木
Original Assignee
本田技研工業株式会社
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 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to JP1812283U priority Critical patent/JPS59124672U/en
Publication of JPS59124672U publication Critical patent/JPS59124672U/en
Pending legal-status Critical Current

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  • Protection Of Static Devices (AREA)
  • Power Conversion In General (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の１実施例のブロック図、第２図及び第
３図はそれぞれ′トランジスタ及び、ＧＴＯサイリスタ
を用いたインバータの回路図を示す。 １・・・整流回路、２・・・インバータ、３・・・低電
圧変換用変圧器、５・・・検出器、６・・・比較器、８
・・・電流設定器。FIG. 1 is a block diagram of one embodiment of the present invention, and FIGS. 2 and 3 are circuit diagrams of an inverter using a transistor and a GTO thyristor, respectively. DESCRIPTION OF SYMBOLS 1... Rectifier circuit, 2... Inverter, 3... Low voltage conversion transformer, 5... Detector, 6... Comparator, 8
...Current setting device.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 交流電源に接続される整流回路１の出力側に半導体素子
を用いたインバータ２を接続し、該インバータ２の出力
を低電圧変換用変圧器３を介して溶接ガンの電極４に供
給するようにした抵抗溶接機において、前記整流回路１
の出力電流を検出する検出器５と、該出力電流と設定値
とを比較する比較器６とを備え、前記インバータ２を、
前記出力電流が設定値より大になった時前記比較器６の
出力により不作動にし、その半導体素子をオフにするこ
とを特徴とする抵抗溶接機におけるインバータ保護回路
。An inverter 2 using semiconductor elements is connected to the output side of a rectifier circuit 1 connected to an AC power source, and the output of the inverter 2 is supplied to an electrode 4 of a welding gun via a low voltage conversion transformer 3. In the resistance welding machine, the rectifier circuit 1
The inverter 2 is equipped with a detector 5 that detects the output current of the inverter 2, and a comparator 6 that compares the output current with a set value.
An inverter protection circuit for a resistance welding machine, characterized in that when the output current becomes larger than a set value, the output of the comparator 6 deactivates the semiconductor element and turns off the semiconductor element.
JP1812283U 1983-02-12 1983-02-12 Inverter protection circuit in resistance welding machine Pending JPS59124672U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1812283U JPS59124672U (en) 1983-02-12 1983-02-12 Inverter protection circuit in resistance welding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1812283U JPS59124672U (en) 1983-02-12 1983-02-12 Inverter protection circuit in resistance welding machine

Publications (1)

Publication Number Publication Date
JPS59124672U true JPS59124672U (en) 1984-08-22

Family

ID=30149331

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1812283U Pending JPS59124672U (en) 1983-02-12 1983-02-12 Inverter protection circuit in resistance welding machine

Country Status (1)

Country Link
JP (1) JPS59124672U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03106575A (en) * 1989-09-20 1991-05-07 Honda Motor Co Ltd Dc resistance welding equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312027B2 (en) * 1974-04-10 1978-04-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312027B2 (en) * 1974-04-10 1978-04-26

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03106575A (en) * 1989-09-20 1991-05-07 Honda Motor Co Ltd Dc resistance welding equipment

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