| 54 |
Title |
TI |
[EN] Method for regulating a welding current source and welding current source for carrying out the method |
| 71/73 |
Applicant/owner |
PA |
AIGNER HUBERT, AT
;
LORCH SCHWEISSTECH GMBH, DE
|
| 72 |
Inventor |
IN |
AIGNER HUBERT, AT
|
| 22/96 |
Application date |
AD |
Jan 29, 2010 |
| 21 |
Application number |
AN |
65797810 |
|
Country of application |
AC |
US |
|
Publication date |
PUB |
Mar 5, 2013 |
33
31
32 |
Priority data |
PRC
PRN
PRD |
DE
102009008199
20090204
|
| 51 |
IPC main class |
ICM |
B23K 9/10
(2006.01)
|
| 51 |
IPC secondary class |
ICS |
|
|
IPC additional class |
ICA |
|
|
IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
B23K 9/0956
|
|
MCD main class |
MCM |
B23K 9/10
(2006.01)
|
|
MCD secondary class |
MCS |
|
|
MCD additional class |
MCA |
|
| 57 |
Abstract |
AB |
[EN] The invention relates to a method for regulating a welding current source with a current transformer, which has a series resonant circuit on the primary side and a parallel resonant circuit on the secondary side, the series resonant circuit being supplied with a variable alternating voltage by a bridge circuit and the parallel resonant circuit providing energy to a welding process by way of a rectifier, and a control unit controlling the bridge circuit in dependence on at least one state variable of the welding current source. In order to develop the method in such a way as to make regulation possible at low cost and with as little power loss as possible, it is proposed according to the invention that only the primary current or a state variable on the primary side corresponding to the primary current is recorded as the electrical-current state variable of the welding current source and a control signal dependent on the primary current or on the state variable corresponding thereto is fed to the control unit. A welding current source for carrying out the method is also proposed. |
| 56 |
Cited documents identified in the search |
CT |
US000006849828B2
US000007457139B2
|
| 56 |
Cited documents indicated by the applicant |
CT |
DE000003200086A1
DE000010307066B3
JP000S59174277A
US000004525621A
US000005712771A
US020070217231A1
WO002001053030A1
US000006469491B1
|
| 56 |
Cited non-patent literature identified in the search |
CTNP |
|
| 56 |
Cited non-patent literature indicated by the applicant |
CTNP |
|
|
Citing documents |
|
Determine documents
|
|
Sequence listings |
|
|
|
Search file IPC |
ICP |
B23K 9/10
|
