Patent ID: 6462963
Filing Date: 2002-10-08
Classification: H02M,H03K,Y02B

Abstract:
A tapped inductor buck converter comprisingan input coupleable to a source of DC potential, an output coupleable to a load, a first coupled inductor having a first winding and a second winding with said second winding connected to said output, a zero voltage switching cell connected to said first winding of said first coupled inductor and to said input comprising, a second inductor connected to said first winding of said first coupled inductor, first switch means connected to said second inductor, second switch means connected to said second inductor and to said first switch means operable substantially in anti-synchronization to said first switch means, a first capacitor connected to said second switch means and to said input, third switch means connected to said second winding of said first coupled inductor, to said output, and to said input operable substantially in anti-synchronization to said first switch means, whereby said zero voltage switching cell achieves elimination of first order switching losses of said first, said second, and said third switch means, and achieves both continuous input and continuous output terminal currents.