发明名称 |
Arc welder |
摘要 |
An arc welder which can be used with either a high voltage a.c. power supply of a certain voltage or a low voltage a.c. power supply of about a half of said voltage, such as 400 or 200 volts, for example, and which is provided with a circuit configuration in which an input a.c. voltage is rectified by a rectifier and smoothed by a pair of capacitors and the resultant d c. power is converted by an invertor into a high frequency a.c. power which is reduced in voltage by an output transformer and then rectified again, and arranged to discriminate the input a.c. voltage and switchingly connect these capacitors in series or parallel between both ends of the input rectifier, thereby automatically conforming the circuit to both high and low supply voltages.
|
申请公布号 |
US5272313(A) |
申请公布日期 |
1993.12.21 |
申请号 |
US19920962923 |
申请日期 |
1992.10.19 |
申请人 |
SANSHA ELECTRIC MANUFACTURING CO., LTD. |
发明人 |
KARINO, KUNIO;MORIGUCHI, HARUO;FUJIYOSHI, TOSHIKAZU;IKEDA, TETSUROU;DANJO, KENZO;AOYAMA, MASAHIRO |
分类号 |
B23K9/073;B23K9/10;H02H11/00;(IPC1-7):B23K9/10 |
主分类号 |
B23K9/073 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|