| 摘要 |
A method and apparatus for providing welding-type power is disclosed. The apparatus includes an input circuit, a dual boost preregulator, a welding-type output power circuit, and a controller. The input circuit receives input power and provides a rectified input to the dual boost preregulator. The preregulator regulates the input and provides bus power across a positive bus and a negative bus. The welding-type output power circuit receives power from the bus and provides to welding-type output power. The controller controls the dual boost preregulator and the welding-type output power circuit. |
