摘要：

A giant transistor-inverter power source controlled by a micro-computer TP801A, which can be used as the power source for resistance seam welding of can, was described in this paper. A bridge type inverter circuit has been applied as the main circuit of the power source. The welding current of medium frequency (120-260Hz) is obtained from the secondary circuits of the power source to suit the needs of high speed seam welding of can.

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