Power module having packaging structure

A power module, having a packaging structure, electrically connected to an outside circuit, and comprising:

• a substrate having a first conductive area, a second conductive area and a third conductive area, and a first fixing area being disposed between the first conductive area and the second conductive area, the first fixing area being electrically connected to the first conductive area, and a second fixing area being disposed between the second conductive area and the third conductive area, the second fixing area being electrically connected to the second conductive area, the first conductive area, the second conductive area, the third conductive area, the first fixing area, and the second fixing area being arranged parallel to each other;
• a first terminal being a current input end electrically connected to the first conductive area;
• a second terminal being an intermediate end electrically connected to the second conductive area;
• a third terminal being a current output end electrically connected to the third conductive area;
• a first switch set being electrically connected to the first fixing area and the second conductive area;
• and
• a second switch set being electrically connected to the second fixing area and the third conductive area,
• wherein when a current flows from the current input end and the first switch set to the intermediate end, or flows from the intermediate end and the second switch set to the current output end, the current flows straightly.