Patent ID: 7816895

Claim:
A power supplying device adapted for converting an input voltage into at least one output voltage, said power supplying device comprising: an output transformer including an input coil unit that is adapted for receiving the input voltage, and first and second output coil units, each of said first and second output coil units being coupled electromagnetically to said input coil unit and being adapted for generating a respective first intermediate voltage from the input voltage; first and second rectifying-and-filtering circuits; and a voltage adjusting transformer including a primary coil unit and a secondary coil unit; wherein said first rectifying-and-filtering circuit is connected electrically to said first output coil unit of said output transformer, and is adapted for rectifying and filtering the first intermediate voltage obtained from said first output coil unit into a first output voltage, said primary coil unit of said voltage adjusting transformer being connected in parallel to said first output coil unit of said output transformer, said secondary coil unit of said voltage adjusting transformer being connected in series to said second output coil unit of said output transformer, and being coupled electromagnetically to said primary coil unit so as to generate a second intermediate voltage from the first intermediate voltage obtained from said first output coil unit, said second rectifying-and-filtering circuit being connected to said secondary coil unit of said voltage adjusting transformer for rectifying and filtering a combined voltage that combines the second intermediate voltage obtained from said secondary coil unit with the first intermediate voltage obtained from said second output coil unit into a second output voltage.