Patent ID: 6266255
Filing Date: 2001-07-24
Classification: H02M

Abstract:
A power supply apparatus comprising:a DC power supply;a plurality of switch means for converting the output voltage of said DC power supply into an AC voltage;a transformer tap-connected to said DC power supply, a primary side of said transformer being connected to said switch means, and the induced voltage of said AC voltage being output to a secondary side of said transformer;a filter for eliminating noise from the output voltage of said DC power supply, said filter being connected in parallel to said DC power supply;voltage stabilizing means for stabilizing the output voltage of said DC power supply, said voltage stabilizing means being connected in parallel to said filter;charging/discharging means for charging/discharging an output current of said DC power supply, said charging/discharging means being connected in parallel to said voltage stabilizing means; andfluctuation suppressing means for suppressing the fluctuation of the output current of said DC power supply or the fluctuation of the current value of a discharge current of said charging/discharging means, said fluctuation suppressing means being connected in series to said voltage stabilizing means.