Transformer circuit and manufacturing method thereof

A transformer circuit, comprising:

• a plurality of input modules, each of the input modules comprising a first primary coil and a second primary coil, each of the primary coils having a positive input terminal and a negative input terminal, the first primary coil and the second primary coil of each of the input modules inductively coupled with each other;
• and
• a plurality of output modules, each of the output modules comprising a secondary coil, each of the secondary coils comprising a first terminal and a second terminal, the first terminal of each of the secondary coils electrically connected to a first output port, and the second terminal of each of the secondary coils electrically connected to a second output port, each of the input modules corresponding to each of the output modules, respectively, the first primary coil and the second primary coil of each of the input modules are inductively coupled to the secondary coil of the corresponding output module, respectively.