Patent ID: 8004861

Claim:
A parameter configuration method for elements of a power-factor-correction function converter that has a PFC (Power Factor Correction) circuit modulating an input power into a DC (Direct Current) modulated power in a discontinuous current mode and a transformer transforming said DC modulated power into an output power to a load, comprising Procedure 1: a storage capacitor configuration procedure: predetermining a test voltage and a rated bus voltage lower than said test voltage, determining a parameter of a storage capacitor according to said test voltage, and using said storage capacitor to supply a modulated power with a voltage reaching said rated bus voltage; Procedure 2: a storage inductor configuration procedure: determining a number of coils of a primary coil of said transformer and determining an inductance of a storage inductor to match said storage inductor and said primary coil work in a discontinuous current mode; and Procedure 3: a verification procedure: configuring a secondary coil of said transformer and an output unit coupled to said secondary coil according to a rated output standard, verifying whether a power factor of said converter is greater than 0.9, and returning to said Procedure 1 to adjust said parameter of said storage capacitor if said power factor of said converter is not greater than 0.9.