A power converter includes a power generating unit, at least two switching units, at least two transformers and a power outputting unit. The power generating unit generates a power signal. The switching units are electrically connected to the power generating unit, and the switching units respectively generate at least one switching signal according to the power signal. The transformers are electrically connected to the switching units, respectively. Each transformer has a first coil and a second coil. The first coils respectively receive the switching signals, and the second coils are electrically connected to each other in series. The power outputting unit is electrically connected to the first coils of the transformers.