发明名称 |
CONSTANT CURRENT WELDING POWER SUPPLY WITH AN UPSLOPE STARTING CURRENT |
摘要 |
<p>12,092 CONSTANT CURRENT WELDING POWER SUPPLY WITH AN UPSLOPE STARTING CURRENT A constant current welding power supply having a single transformer with a primary winding connected to a three phase input source of line voltage and two secondary windings each having a bridge rectifier for providing an open circuit starting voltage separate from the arc working voltage. Each bridge rectifier is fired by separate firing means controlled by a logic control means. One bridge rectifier is energized with an advancing firing angle proportional to a ramp output signal enabled through the control means in response to a predetermined drop in output voltage. The other bridge rectifier is energized in synchronism with the line voltage for a predetermined period of time following the predetermined drop in output voltage.</p> |
申请公布号 |
CA1150781(A) |
申请公布日期 |
1983.07.26 |
申请号 |
CA19800355696 |
申请日期 |
1980.07.08 |
申请人 |
UNION CARBIDE CORPORATION |
发明人 |
HARDWICK, STEVEN F.;FERNICOLA, ROBERT C. |
分类号 |
B23K9/067;B23K9/073;(IPC1-7):B23K9/10;B23K11/24 |
主分类号 |
B23K9/067 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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