Resonant supply circuit with controllable output wave shape for use in motor vehicles, uses switched capacitors in resonant circuit providing opposing primary polarities and has auxiliary resonant circuit in secondary

摘要

The circuit has a principal resonant circuit (L1,C1) with a switch (X1) across the capacitor, and a second switched (X2) capacitor (C2). Each capacitor is connected to the principal inductor (L1) through a primary winding (N1,N2). These primary windings are coupled to the secondary (S1) in opposing directions. A capacitor (C3) across the secondary forms an auxiliary resonant circuit.