Patent ID: 6178102
Filing Date: 2001-01-23
Classification: H02M,Y10S

Abstract:
A power supply for supplying a DC voltage from an AC supply voltage provided by an AC voltage source comprising:a rectifier adapted to be coupled to the AC supply voltage to rectify the AC supply voltage to an unregulated DC voltage component which is positive relative to earth and an unregulated DC voltage component which is negative relative to earth; anda first and second regulator coupled to said rectifier, said first regulator regulating only a portion of said unregulated positive DC voltagze component to augment said unregulated positive DC voltage component with a controlled positive DC voltage component, thereby creating a positive DC voltage, said second regulator regulating only a portion of said unregulated negative DC voltage component to augment said unregulated negative DC voltage component with a controlled negative DC voltage component, thereby creating a negative DC voltage.