| 摘要 |
A power converter comprises a series arrangement of a first main current path of a first controllable switch (M2) and a second main current path of a second controllable switch (M3). The series arrangement is arranged to receive a DC-input voltage (V1). A series arrangement of an inductance (L) and a capacitance (2) is arranged in parallel with the second main current path. An output node (NO) which is coupled to the inductance (L) supplies an output voltage (VO) of the power converter. The power converter further comprises a means (M1) for varying the capacitance (2). A controller (1) controls the first controllable switch (M2) and the second controllable switch (M3) with a variable repetition frequency (fr) to stabilize the output voltage (VO), and controls the means (M1) for varying to vary the capacitance (2) or the inductance (L) in dependence on an output power of the power converter. |
