Planar Transformer

A planar transformer comprising:

• at least three conductor plates having a same type of configuration including a same rectangular perimeter, each conductor plate having a serpentine channel separating a region of the conductor plate into a first portion having a first connection area within the rectangular perimeter and a second portion having a second connection area within the rectangular perimeter, each conductor plate further having a hole in a central region within the rectangular perimeter for receiving a magnetic core, each conductor plate corresponding to one wire turn of a first winding coil with one of the first and second portions being a start point of the wire turn and the other one of the first and second portions being an end point of the wire turn;
• a plurality of insulator sheets each having a window and a hole, each insulator sheet is either of a first type or a second type, the window of each insulator sheet of the first type is aligned with the first connection areas of the conductor plates and the window of each insulator sheet of the second type is aligned with the second connection areas of the conductor plates, the hole of each insulator sheet for receiving a magnetic core and is aligned with the holes of the conductor plates;
• and
• the conductor plates are stacked on top of one another with alternate ones of the conductor plates being flipped relative to one another such that the first connection areas of the conductor plates are aligned with the first connection areas of the flipped conductor plates and the second connection areas of the conductor plates are aligned with the second connection areas of the flipped conductor plates and with the insulator sheets of the first type being respectively between odd neighboring pairs of the conductor plates and the insulator sheets of the second type being respectively between even neighboring pairs of the conductor plates, the conductor plates are connected together within the rectangular perimeter at the connection areas of the conductor plates through the windows of the insulator sheets to establish electrical continuity between neighboring conductor plates to thereby form a first packet corresponding to the first winding coil.