Patent ID: 6198644
Filing Date: 2001-03-06
Classification: H02M

Abstract:
A rectifying and smoothing circuit comprising:a first switching transformer having an output winding having one end and another end;a low potential-side output portion;a high potential-side output portion;a first inductor connected between said one end of said output winding and said low potential-side output portion;a second inductor connected between said another end of said output winding and said low potential-side output portion;a first rectifying element connected between said one end of said output winding and said high potential-side output portion; anda second rectifying element connected between said another end of said output winding and said high potential-side output portion,the rectifying and smoothing circuit generating a DC voltage by rectifying and smoothing a bipolar voltage induced across said output winding,wherein said first inductor and said second inductor are constructed by a first winding and a second winding of a second transformer, respectively, said first winding and said second winding being wound in a manner such that magnetic fluxes generated by respective currents flowing therethrough cancel each other.