| 摘要 |
<p>A resonant power converter (PCr) which comprises a switchable means (Js1, Js2; S1, S2) for sequentially supplying a sourcing current and a sinking current to a first node (A) of a resonant circuit (CR). A rectifying circuit (C0) is connected to the resonant circuit. The resonant circuit consists of a series arrangement of a first capacitor (C1), an inductive element (L) and a second capacitor (C2). The resonant power converter further comprises a switch controller (SC) for controlling the switchable means. The switch controller switches the switchable means substantially at an extreme level of the resonant voltage (vra) at the first node caused by the resonant current (ir). The switches (S1, S2) are switched on during an on-time window (Tw1a, Tw1b, Tw2) of which the duration is typically shorter than one-eighth of a period (Pr) of the resonant voltage (vra) at the first node (A).</p> |
