RESONANT POWER CONVERTER

摘要

A resonant power converter comprises a switching unit (M1, M2), a controller (CO) for controlling the switching frequency (fs) of the switching unit (M1, M2), a transformer (TR) having multiple primary windings (PW1, PW2), and a resonant circuit (C1, L1; C2, L2) having multiple resonances, an input being coupled to a DC-input voltage (Vi) via the switching unit (M1, M2), and multiple outputs, wherein each output of the multiple outputs is coupled to one of the multiple primary windings (PW1, PW2) to obtain a effective turns ratio with the secondary winding (SW) dependent on the switching frequency (fs).